Classical Physics - pre Kinematics & Mechanics Energy & Light & Heat Electricity & Magnetism Wave Motion. Modern Physics - post 1900
|
|
- May Wade
- 6 years ago
- Views:
Transcription
1 Scientific Method Observation or question Hypothesis - belief thru reason Procedure thru experiment Data, Calculations Analysis - conclusion to theory or law Prediction - check on theory for repeatability and accuracy Classical Physics - pre 1900 Kinematics & Mechanics Energy & Light & Heat Electricity & Magnetism Wave Motion Aug 19 2:11 PM Aug 19 2:14 PM Modern Physics - post 1900 Relativity & Atomic & Nuclear Quantum Mechanics Particle High Energy Fundamentals -- composed of matter occupy space exist in Aug 19 2:16 PM Aug 19 2:17 PM Units are your friend... Base Units vs. Derived Units we define a few fundamental units and see how other quantities happen MKS Aug 17 2:02 PM Aug 17 2:04 PM 1
2 e.g. length - 1/10000 of the distance between NP & equator # of λ from Kr distance light travels in a vacuum in 1/299,792,458 of a second mass - mass of Ir cylinder 39 mm high & d = 39 mm - Galileo used his pulse - duration of 9,192,631,770 periods of radiation transitions between the two hyperfine levels of the ground state of the Cs-133 atom velocity force Aug 17 2:05 PM Aug 19 2:25 PM Scientific Notation & Sig Figs giga micro 25,251 grams = Coversions 20.0 miles = 1.61 km = 1 mi Note: prefix chart is on the inside cover of your textbook note: conversion factors can be found on the inside cover of the text Aug 17 2:08 PM Aug 17 2:15 PM convert first and then calculate... find the volume of a cube with 1 cm sides Mathematical Models (graphs are your friend too!) linear (proportional) square inverse inverse square Aug 17 2:19 PM Aug 17 2:27 PM 2
3 Kinematics Motion Maps from the same root as "cinema" Aug 19 10:41 AM Aug 19 10:40 AM What motion does this represent? start here Aug 19 10:40 AM Aug 19 10:40 AM What motion does this represent? Graphically we can represent motion this way Aug 19 10:41 AM Aug 19 10:41 AM 3
4 What does the slope mean on the position graph? constant linear Velocity non constant curvy non linear position position Aug 23 2:11 PM Aug 17 7:39 AM position Aug 17 9:26 AM Aug 17 1:20 PM What is the velocity? position position velocity accel 9.81 m/s 2 Aug 17 1:20 PM Aug 17 1:26 PM 4
5 position position velocity velocity accel accel Aug 17 1:51 PM Aug 17 1:51 PM Derivation of Kinematics Equations Aug 17 2:00 PM Aug 22 8:48 AM 1. An antelope running with constant acceleration covers the distance between two points 60.0 meters apart in 6.00 seconds. Its speed as it passes the second point is 15 m/s. a. What is its speed at the first point? b. What is its acceleration? Aug 19 2:50 PM Aug 17 1:57 PM 5
6 2. If a flea can jump to a height of m, what is its initial speed as it leaves the ground? How long is it in the air? What does the sign of acceleration mean? in other words, what is + acceleration and what is - acceleration? Aug 17 1:57 PM Aug 23 1:52 PM position velocity accel + v + a +v - a 0 v + a 0 v - a - v + a -v - a motion Aug 17 2:07 PM Aug 23 2:03 PM the "first thumb rule" A brick is dropped from the roof of a building. The brick strikes the ground after 5.0 seconds. a. How tall is the building? b. What is the brick s velocity just before it reaches the ground? Aug 23 2:05 PM Aug 17 1:57 PM 6
7 A hot air balloonist, rising vertically with a constant velocity of magnitude 8.00 m/s, releases a sandbag at an instant when the balloon is 20.0 m above the ground. a. Find the height above the ground and the velocity of the sandbag at the following s after its release: s and 2.00 seconds. b. How long after its release does the bag strike the ground? c. What is its velocity just before it reaches the ground? 2-24 A jet plane is crusing at 250 m/s when suddenly the pilot turns the engines up to full throttle. After traveling an additional 2.0 km the jet is moving with a speed of 300 m/s. a) What is the jets acceleration (assume a = constant)? b) Is this a reasonable answer? Justify Aug 17 1:59 PM Aug 17 1:59 PM 2-27 You're driving down the highway late one night at 20 m/s when a deer steps onto the road 35 m in front of you. Your reaction before stepping on the brakes is 0.50 s and the maximum acceleration of the car is -10 m/s 2. a) How much distance is between you and the deer when you come to a stop? b) What is the maximum speed you could have and still not hit the deer? 2-30 Ball bearings can be made by letting spherical drops of molten metal fall inside a tall tower -- called a shot tower -- and solidify as they fall. a) If a bearing needs 4.0 s to solidify enough for impact, how high must the tower be? b) What is the bearings impact velocity? Aug 22 10:28 AM Aug 22 9:09 AM 2-34 In an action movie, the villain is rescued from the ocean by grabbing onto the ladder hanging from a helicopter. He is so intent on gripping the ladder that he lets go of the briefcase full of money when he is 130 m above the water. If the briefcase hits the water 6.0 s later, how fast was the helicopter rising? 2-42 Two stones are released from the edge of a cliff, one a short after the other. a) As they fall, the first is always going faster than the second. Does the difference between their speeds get larger, get smaller or stay the same? Justify your answer. b) Does their separation increase, decrease or stay the same? Justify. c) Will the interval between the instants at which they hit the ground be small then, equal to, or larger than the interval between the instants of their release? Justify Aug 22 10:33 AM Aug 22 10:35 AM 7
8 2-59 A juggler throws a ball straight up into the air with a speed of 10 m/s. With what speed would she need to throw a second ball half a second later, starting from the same position, in order to hit the first ball at the top of its trajectory? 2-67 A "rocket car" is launched along a long straight track at t = 0s. It moves with constant acceleration a 1 = 2.0 m/s 2. At t = 2.0 s, a second car is launched with constant acceleration a 2 = 8.0 m/s 2. a) At what does the second car catch up with the first? b) How far down the track do they meet? Aug 22 10:37 AM Aug 22 10:39 AM Do problems Page 64: 19, 32a, 33, 46, 54, 62, 70, 76 Preview Chapter 3.1 & 3.3 for next class Vectors a scalar has only magnitude a vector has magnitude and direction Aug 23 2:11 PM Aug 25 2:24 PM Displacement -- a vector quantity B Vector addition method 1: tip to tail A + B + C + D A D C A B remember vectors only have a magnitude and a direction -- no fixed starting point answer is called the resultant Aug 25 2:24 PM Aug 25 2:22 PM 8
9 Vector addition? A + B + C + D = B + D + A + C A C D Can you add two vectors with different magnitudes and get a resultant of zero? three vectors? B Aug 25 2:28 PM Aug 25 2:29 PM Notation: boldface indicates a vector quantity italics or plain type indicates a scalar A A How to draw a vector draw the length proportional to the magnitude of the vector direction is measured from +x axis Aug 25 2:32 PM Aug 25 2:59 PM Try a practical application of vector addition... Start in Strausberg, South Dakota, follow the directions you and your partner are given. Where do you end up? vector addition: method 2: Vector Components A θ Aug 25 3:02 PM Aug 25 3:03 PM 9
10 back to South Dakota 230 km 30 o N of E 260 km 32 o W of S 80 km 38 o E of N 84 km 32 o N of E 220 km 46 o W of N 180 km 56 o S of W Aug 25 3:20 PM Sep 3 10:46 AM Find standard angles 230 km 30 o N of E --> 30 o 260 km 32 o W of S --> 238 o 80 km 38 o E of N --> 52 o 84 km 32 o N of E --> 32 o 220 km 46 o W of N --> 136 o 180 km 56 o S of W --> 236 o find the x components - -add them together 230 km cos 30 o 260 km cos 238 o 80 km cos 52 o 84 km cos 32 o 220 km cos 136 o 180 km cos 236 o km km Sep 3 10:48 AM Sep 3 10:50 AM find the y components - add them together 230 km sin 30 o 260 km sin 238 o 80 km sin 52 o 84 km sin 32 o 220 km sin 136 o 180 km sin 236 o 5.66 km km Scale your results & find your final destination Porcupine 5.66km = cm Strasbourg km =-3.85cm Sep 3 10:51 AM Sep 3 10:53 AM 10
11 unit vectors Aug 25 3:03 PM Aug 30 8:15 AM Multiplication of Vectors -- Multiplication by a Scalar stretches or shrinks or reverses direction of original vector answer is a vector Aug 30 8:25 AM Aug 29 1:12 PM Multiplication of Vectors -- Scalar Multiplication - Dot Product (How much of B is in A's direction.) Answer is a scalar Aug 29 1:13 PM Aug 30 8:37 AM 11
12 Does a. b =b. a? Can a scalar product ever be negative? If so, what does it mean? If a. b = 0, does it follow that a and b are perpendicular to each other? Aug 29 1:19 PM Aug 30 8:44 AM Multiplication of Vectors -- Vector Multiplication - Cross Product answer is a vector area of parallelogram formed by A and B Aug 29 1:18 PM Aug 30 8:56 AM Does axb = bxa? B = 6i + j - 2k D = -i + 3j Find B. D What is the angle between B and D? Aug 29 1:20 PM Aug 29 1:24 PM 12
13 C = 2i -j F = i + 2j - 3k Find C. F What is the angle between C and F? Lab reports Setting up a lab report folder on googledocs Aug 29 1:26 PM Aug 29 1:27 PM Dropping vs Launching (thank you Mr. Galileo for this insight) a projectile may be treated as if it were two simultaneous INDEPENDENT motions: a horizontal flight (constant velocity) and a vertical free fall Aug 29 1:36 PM Aug 29 1:41 PM Projectile: an object moving in 2 dimensions (x and y) under only the influence of gravity. s = x i + y j v = v ix i + v iy j v = v i cosθ i + v i sinθ j a = a ix i + a iy j a = 0 i -g j Lab: 2 Dimensional Motion Video Analysis Purpose: To study the independence of vertical and horizontal motion in projectiles. Data: Collect information about the horizontal and vertical positions of a projectile with respect to. Calculation/Analysis: Graph: (1) X horizontal vs (2) Y vertical vs (3) Y vertical vs 2 Conclusion: 1. Comment on velocity and acceleration for horizontal motion. 2. Comment on velocity and acceleration for vertical motion. 3. Write the mathematical model for a. X horizontal vs b. Y vertical vs 2 4. What are the sources of error? (Consider with respect to the precision and accuracy of your results.) 5. Calculate the 5% rule for the X horizontal vs data. 6. Calculate the % error for the vertical acceleration using 9.8 m/s 2 for the theoretical acceleration. Aug 29 1:41 PM Aug 29 1:45 PM 13
14 2D motion notes Motion on a Ramp Use ruler button to set scale on video. Carefully mark ball the better you do here the better your results will be. On graphs (3) Autoscale from 0 Make a calculated column for squared Include best fit curves θ Sep 1 7:47 AM Sep 8 1:45 PM A skier is on a slope which makes an angle of 38 o with the horizontal. If gravity is the only source of acceleration, how far will he travel before reaching 20 m/s? How long will this take? Kinematics: Projectile Equations motions in the x and y directions are INDEPENDENT x = x i + v ix t x = x i + v i cosθt v x = v ix y = y i + v iy t - ½gt 2 y = y i + v i sinθt - ½gt 2 v y 2 = v iy 2-2g(y-y i ) (vsinθ) 2 = (v i sinθ) 2-2g(y-y i ) Sep 8 1:47 PM Aug 29 1:41 PM A person in the gondola of a balloon throws a ball at a 40.0 o to the horizontal at 10.0 m/s. If the ball is launched at a height of 100 m, where will it land? Ignore air resistance. A baseball recoiling from a bat soars into the air at an angle of 40.0 o above the ground traveling at 45.7 m/s. Assuming it is caught at the same height it was hit, calculate the theoretical range of the ball, ignoring air resistance. Sep 7 3:16 PM Sep 7 3:17 PM 14
15 Derivation of Time of Flight [t f] and Range [R] Equations A baseball recoiling from a bat soars into the air at an angle of 40.0 o above the ground traveling at 45.7 m/s. Assuming it is caught at the same height it was hit, calculate the theoretical range of the ball, ignoring air resistance. Sep 8 1:40 PM Sep 8 1:42 PM Sep 8 2:07 PM 15
Chapter 3 Kinematics in Two Dimensions; Vectors
Chapter 3 Kinematics in Two Dimensions; Vectors Vectors and Scalars Addition of Vectors Graphical Methods (One and Two- Dimension) Multiplication of a Vector by a Scalar Subtraction of Vectors Graphical
More informationHomework. Exam 1 Tue Feb 24 from 7 to 9 pm. Free Fall. Homework #3 due on Friday
Homework Homework #3 due on Friday Exam 1 Tue Feb 24 from 7 to 9 pm More info today Get Evening Exam Conflicts form at Registrar s Office if you have a conflict must schedule your makeup exam this week!
More informationUnit 1: 1D Kinematics 1 The Big 3 Kinematics Equations
Unit 1: 1D Kinematics 1 The Big 3 Kinematics Equations Kinematics is a fundamental branch of Physics focusing on the motion of objects. It will be something we touch back on over the course of the next
More informationProgressive Science Initiative. Click to go to website:
Slide 1 / 246 New Jersey Center for Teaching and Learning Progressive Science Initiative This material is made freely available at www.njctl.org and is intended for the non-commercial use of students and
More informationacceleration versus time. LO Determine a particle s change in position by graphical integration on a graph of velocity versus time.
Chapter: Chapter 2 Learning Objectives LO 2.1.0 Solve problems related to position, displacement, and average velocity to solve problems. LO 2.1.1 Identify that if all parts of an object move in the same
More informationPhysics 11 Chapter 3: Kinematics in Two Dimensions. Problem Solving
Physics 11 Chapter 3: Kinematics in Two Dimensions The only thing in life that is achieved without effort is failure. Source unknown "We are what we repeatedly do. Excellence, therefore, is not an act,
More information(a) On the diagram above, draw an arrow showing the direction of velocity of the projectile at point A.
QUESTION 1 The path of a projectile in a uniform gravitational field is shown in the diagram below. When the projectile reaches its maximum height, at point A, its speed v is 8.0 m s -1. Assume g = 10
More informationCHAPTER 3 KINEMATICS IN TWO DIMENSIONS; VECTORS
CHAPTER 3 KINEMATICS IN TWO DIMENSIONS; VECTORS OBJECTIVES After studying the material of this chapter, the student should be able to: represent the magnitude and direction of a vector using a protractor
More informationVector and Relative motion discussion/ in class notes. Projectile Motion discussion and launch angle problem. Finish 2 d motion and review for test
AP Physics 1 Unit 2: 2 Dimensional Kinematics Name: Date In Class Homework to completed that evening (before coming to next class period) 9/6 Tue (B) 9/7 Wed (C) 1D Kinematics Test Unit 2 Video 1: Vectors
More informationChapter 3 Acceleration
Chapter 3 Acceleration Slide 3-1 Chapter 3: Acceleration Chapter Goal: To extend the description of motion in one dimension to include changes in velocity. This type of motion is called acceleration. Slide
More informationChapter 2 One-Dimensional Kinematics. Copyright 2010 Pearson Education, Inc.
Chapter 2 One-Dimensional Kinematics Units of Chapter 2 Position, Distance, and Displacement Average Speed and Velocity Instantaneous Velocity Acceleration Motion with Constant Acceleration Applications
More informationPhysics 201, Midterm Exam 1, Fall Answer Key
Physics 201, Midterm Exam 1, Fall 2006 Answer Key 1) The equation for the change of position of a train starting at x = 0 m is given by x(t) = 1 2 at 2 + bt 3. The dimensions of b are: A. T 3 B. LT 3 C.
More informationChapter 2. Kinematics in One Dimension. continued
Chapter 2 Kinematics in One Dimension continued 2.6 Freely Falling Bodies Example 10 A Falling Stone A stone is dropped from the top of a tall building. After 3.00s of free fall, what is the displacement
More informationChapter 4. Two-Dimensional Motion
Chapter 4. Two-Dimensional Motion 09/1/003 I. Intuitive (Understanding) Review Problems. 1. If a car (object, body, truck) moves with positive velocity and negative acceleration, it means that its a) speed
More informationPSI AP Physics 1 Kinematics. Free Response Problems
PSI AP Physics 1 Kinematics Free Response Problems 1. A car whose speed is 20 m/s passes a stationary motorcycle which immediately gives chase with a constant acceleration of 2.4 m/s 2. a. How far will
More informationKinematics 2. What equation relates the known quantities to what is being asked?
Physics R Date: 1. A cheetah goes from rest to 60 miles per hour (26.8 m/s) in 3 seconds. Calculate the acceleration of the cheetah. Kinematics Equations Kinematics 2 How to solve a Physics problem: List
More informationChapter 2 One-Dimensional Kinematics. Copyright 2010 Pearson Education, Inc.
Chapter One-Dimensional Kinematics Units of Chapter Position, Distance, and Displacement Average Speed and Velocity Instantaneous Velocity Acceleration Motion with Constant Acceleration Applications of
More informationAdding Vectors in Two Dimensions
Slide 37 / 125 Adding Vectors in Two Dimensions Return to Table of Contents Last year, we learned how to add vectors along a single axis. The example we used was for adding two displacements. Slide 38
More informationChapter 3 Acceleration
Chapter 3 Acceleration Slide 3-1 Chapter 3: Acceleration Chapter Goal: To extend the description of motion in one dimension to include changes in velocity. This type of motion is called acceleration. Slide
More informationVocabulary Preview. Oct 21 9:53 AM. Projectile Motion. An object shot through the air is called a projectile.
Projectile Trajectory Range Launch angle Vocabulary Preview Projectile Motion Projectile Motion An object shot through the air is called a projectile. A projectile can be a football, a bullet, or a drop
More informationLecture Notes Kinematics Recap 2.4 Acceleration
Lecture Notes 2.5-2.9 Kinematics Recap 2.4 Acceleration Acceleration is the rate at which velocity changes. The SI unit for acceleration is m/s 2 Acceleration is a vector, and thus has both a magnitude
More information1) If the acceleration of an object is negative, the object must be slowing down. A) True B) False Answer: B Var: 1
University Physics, 13e (Young/Freedman) Chapter 2 Motion Along a Straight Line 2.1 Conceptual Questions 1) If the acceleration of an object is negative, the object must be slowing down. A) True B) False
More informationMULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) If the acceleration of an object is negative, the object must be slowing down. A) True B) False
More informationTwo-Dimensional Motion Worksheet
Name Pd Date Two-Dimensional Motion Worksheet Because perpendicular vectors are independent of each other we can use the kinematic equations to analyze the vertical (y) and horizontal (x) components of
More informationLecture PowerPoints. Chapter 3 Physics for Scientists & Engineers, with Modern Physics, 4 th edition Giancoli
Lecture PowerPoints Chapter 3 Physics for Scientists & Engineers, with Modern Physics, 4 th edition Giancoli 2009 Pearson Education, Inc. This work is protected by United States copyright laws and is provided
More informationProblem: Projectile (CM-1998)
Physics C -D Kinematics Name: ANSWER KEY AP Review Packet Vectors have both magnitude and direction displacement, velocity, acceleration Scalars have magnitude only distance, speed, time, mass Unit vectors
More informationWelcome back to Physics 215
Welcome back to Physics 215 Lecture 2-2 02-2 1 Last time: Displacement, velocity, graphs Today: Constant acceleration, free fall 02-2 2 2-2.1: An object moves with constant acceleration, starting from
More information*************************************************************************
Your Name: TEST #1 Print clearly. On the Scantron, fill out your student ID, leaving the first column empty and starting in the second column. Also write your name, class time (11:30 or 12:30), and Test
More informationAP Physics First Nine Weeks Review
AP Physics First Nine Weeks Review 1. If F1 is the magnitude of the force exerted by the Earth on a satellite in orbit about the Earth and F2 is the magnitude of the force exerted by the satellite on the
More informationPractice Test 1 1. A steel cylinder is 39 mm in height and 39 mm in diameter.
Practice Test 1 1. A steel cylinder is 39 mm in height and 39 mm in diameter. (a) How much does it weigh? (density of steel: ρ = 7560 kg/m3) 2. An automobile moving along a straight track changes its velocity
More informationONE-DIMENSIONAL KINEMATICS
ONE-DIMENSIONAL KINEMATICS Chapter 2 Units of Chapter 2 Position, Distance, and Displacement Average Speed and Velocity Instantaneous Velocity Acceleration Motion with Constant Acceleration Applications
More informationAnnouncement. Quiz on Friday (Graphing and Projectile Motion) No HW due Wednesday
Going over HW3.05 Announcement Quiz on Friday (Graphing and Projectile Motion) No HW due Wednesday As the red ball rolls off the edge, a green ball is dropped from rest from the same height at the same
More informationProjectile motion. Objectives. Assessment. Assessment. Equations. Physics terms 5/20/14. Identify examples of projectile motion.
Projectile motion Objectives Identify examples of projectile motion. Solve projectile motion problems. problems Graph the motion of a projectile. 1. Which of the events described below cannot be an example
More informationReview of General 1D Kinematics The instantaneous velocity and acceleration are:
Review of General 1D Kinematics The instantaneous velocity and acceleration are: If we know the position and velocity at the initial point i, we can find the position and velocity at point f by: PhET Computer
More informationQuickCheck. A cart slows down while moving away from the origin. What do the position and velocity graphs look like? Slide 2-65
QuickCheck A cart slows down while moving away from the origin. What do the position and velocity graphs look like? Slide 2-65 QuickCheck A cart speeds up toward the origin. What do the position and velocity
More informationChapter 3 Acceleration
Chapter 3 Acceleration Slide 3-1 PackBack The first answer gives a good physical picture. The video was nice, and worth the second answer. https://www.youtube.com/w atch?v=m57cimnj7fc Slide 3-2 Slide 3-3
More informationCHAPTER 2: Describing Motion: Kinematics in One Dimension
CHAPTER : Describing Motion: Kinematics in One Dimension Answers to Questions 1. A car speedometer measures only speed. It does not give any information about the direction, and so does not measure velocity..
More informationCHAPTER 2 DESCRIBING MOTION: KINEMATICS IN ONE DIMENSION
CHAPTER 2 DESCRIBING MOTION: KINEMATICS IN ONE DIMENSION OBJECTIVES After studying the material of this chapter, the student should be able to: state from memory the meaning of the key terms and phrases
More informationChapter 2 Motion in One Dimension
Chapter 2 Motion in One Dimension Multiple Choice 1. The position of a particle moving along the x axis is given by 2 x = ( 21+ 22t 6 0. t )m, where t is in s. What is the average velocity during the time
More information3 Vectors and Two- Dimensional Motion
May 25, 1998 3 Vectors and Two- Dimensional Motion Kinematics of a Particle Moving in a Plane Motion in two dimensions is easily comprehended if one thinks of the motion as being made up of two independent
More informationChapter 3. Kinematics in Two Dimensions
Chapter 3 Kinematics in Two Dimensions 3.1 Trigonometry 3.1 Trigonometry sin! = h o h cos! = h a h tan! = h o h a 3.1 Trigonometry tan! = h o h a tan50! = h o 67.2m h o = tan50! ( 67.2m) = 80.0m 3.1 Trigonometry!
More informationWhen we throw a ball :
PROJECTILE MOTION When we throw a ball : There is a constant velocity horizontal motion And there is an accelerated vertical motion These components act independently of each other PROJECTILE MOTION A
More informationPhys 2425: University Physics I Spring 2016 Practice Exam 1
1. (0 Points) What course is this? a. PHYS 1401 b. PHYS 140 c. PHYS 45 d. PHYS 46 Survey Questions no points. (0 Points) Which exam is this? a. Exam 1 b. Exam c. Final Exam 3. (0 Points) What version of
More informationPhysics 12 Unit 1: Kinematics Notes. Name: What you will be able to do by the end of this unit:
Physics 12 Unit 1: Kinematics Notes. Name: What you will be able to do by the end of this unit: B1. Perform vector analysis in one or two dimensions identify scalars and vectors resolve a vector into two
More informationAP Physics 1- Kinematics Practice Problems (version 2)
AP Physics 1- Kinematics Practice Problems (version 2) FACT: Kinematics is the branch of Newtonian mechanics concerned with the motion of objects without reference to the forces that cause the motion.
More informationChapter 2. Kinematics in one dimension
Chapter 2 Kinematics in one dimension Galileo - the first modern kinematics 1) In a medium totally devoid of resistance all bodies will fall at the same speed 2) During equal intervals of time, a falling
More information1-D Motion: Free Falling Objects
v (m/s) a (m/s^2) 1-D Motion: Free Falling Objects So far, we have only looked at objects moving in a horizontal dimension. Today, we ll look at objects moving in the vertical. Then, we ll look at both
More informationBill s ball goes up and comes back down to Bill s level. At that point, it is
ConcepTest 2.1 Up in the Air Alice and Bill are at the top of a cliff of height H.. Both throw a ball with initial speed v 0, Alice straight down and Bill straight up. The speeds of the balls when they
More informationPhysics 201 Homework 1
Physics 201 Homework 1 Jan 9, 2013 1. (a) What is the magnitude of the average acceleration of a skier who, starting (a) 1.6 m/s 2 ; (b) 20 meters from rest, reaches a speed of 8.0 m/s when going down
More informationProblem Set : Kinematics in 1 Dimension
Problem Set : Kinematics in 1 Dimension Assignment One-Dimensional Motion Page 1 of 6 Name: Date: Solve the following problems and answer the questions on separate paper. Be neat and complete. Include
More informationVectors. Graphical Method. Graphical Method. SEEMS SIMPLE? = 30.5 m/s. Graphical Method. Graphical Method (TIP TO TAIL) S
Vectors Graphical Method General discussion. Vector - A quantity which has magnitude and direction. Velocity, acceleration, Force, E Field, Mag Field, calar - A quantity which has magnitude only. (temp,
More informationTopic 2.1: Kinematics. How do we analyze the motion of objects?
Topic.1: Kinematics How do we analyze the motion of objects? Characteristic Graphs The most common kinematics problems involve uniform acceleration from rest These have a characteristic shape for each
More informationPHYSICS MIDTERM REVIEW PACKET
PHYSICS MIDTERM REVIEW PACKET PERIOD: TIME: DATE: ROOM: YOU NEED TO BRING: 1. #2 PENCIL W/ ERASER. 2. CALCULATOR (YOUR OWN). YOU WILL NOT BE ALLOWED TO SHARE OR BORROW!!! YOU WILL BE GIVEN: 1. FORMULA
More informationTwo Dimensional Kinematics Challenge Problems
Two Dimensional Kinematics Challenge Problems Problem 1: Suppose a MIT student wants to row across the Charles River. Suppose the water is moving downstream at a constant rate of 1.0 m/s. A second boat
More informationFACT: Kinematics is the branch of Newtonian mechanics concerned with the motion of objects without reference to the forces that cause the motion.
AP Physics 1- Kinematics Practice Problems FACT: Kinematics is the branch of Newtonian mechanics concerned with the motion of objects without reference to the forces that cause the motion. FACT: Displacement
More informationIntroduction to 2-Dimensional Motion
Introduction to 2-Dimensional Motion 2-Dimensional Motion! Definition: motion that occurs with both x and y components.! Example:! Playing pool.! Throwing a ball to another person.! Each dimension of the
More informationChapter 2 Solutions. = 16.1 m/s. = 11.5 m/s m. 180 km = ( ) h. = 2.5 m/s. = 3.3 m/s
Chapter Solutions *.1 (a) v.30 m/s v x 57.5 m 9.0 m 3.00 s 16.1 m/s (c) v x 57.5 m 0 m 5.00 s 11.5 m/s. (a) Displacement (8.50 10 4 m/h) 35.0 60.0 h + 130 103 m x (49.6 + 130) 10 3 m 180 km Average velocity
More informationAP Physics 1 Summer Assignment 2018 Mrs. DeMaio
AP Physics 1 Summer Assignment 2018 Mrs. DeMaio demaiod@middletownk12.org Welcome to AP Physics 1 for the 2018-2019 school year. AP Physics 1 is an algebra based, introductory college-level physics course.
More informationA. Basic Concepts and Graphs
A. Basic Concepts and Graphs A01 [Qual] [Easy] For each of the following, select if it is a vector or a scalar. a) Speed b) Distance traveled c) Velocity d) (Linear) Displacement A02 [Qual] [Easy] Give
More informationKinematics in Two Dimensions; Vectors
Kinematics in Two Dimensions; Vectors Vectors & Scalars!! Scalars They are specified only by a number and units and have no direction associated with them, such as time, mass, and temperature.!! Vectors
More informationChapter 3 2-D Motion
Chapter 3 2-D Motion We will need to use vectors and their properties a lot for this chapter. .. Pythagorean Theorem: Sample problem: First you hike 100 m north. Then hike 50 m west. Finally
More informationVectors and Kinematics Notes 1 Review
Velocity is defined as the change in displacement with respect to time. Vectors and Kinematics Notes 1 Review Note that this formula is only valid for finding constant velocity or average velocity. Also,
More information1-D and 2-D Motion Test Friday 9/8
1-D and -D Motion Test Frida 9/8 3-1 Vectors and Scalars A vector has magnitude as well as direction. Some vector quantities: displacement, velocit, force, momentum A scalar has onl a magnitude. Some scalar
More informationPlanar Motion with Constant Acceleration
Planar Motion with Constant Acceleration 1. If the acceleration vector of an object is perpendicular to its velocity vector, which of the following must be true? (a) The speed is changing. (b) The direction
More informationChapter 2: 1-D Kinematics
Chapter : 1-D Kinematics Types of Motion Translational Motion Circular Motion Projectile Motion Rotational Motion Natural Motion Objects have a proper place Objects seek their natural place External forces
More informationChapter 4 Two-Dimensional Kinematics. Copyright 2010 Pearson Education, Inc.
Chapter 4 Two-Dimensional Kinematics Units of Chapter 4 Motion in Two Dimensions Projectile Motion: Basic Equations Zero Launch Angle General Launch Angle Projectile Motion: Key Characteristics 4-1 Motion
More informationphysics Chapter 4 Lecture a strategic approach randall d. knight FOR SCIENTISTS AND ENGINEERS Chapter 4_Lecture1 THIRD EDITION
Chapter 4 Lecture physics FOR SCIENTISTS AND ENGINEERS a strategic approach THIRD EDITION randall d. knight Chapter 4_Lecture1 1 Chapter 4 Kinematics in 2D: Projectile Motion (Sec. 4.2) Which fountain
More informationCHAPTER 3 ACCELERATED MOTION
Physics Approximate Timeline Students are expected to keep up with class work when absent. CHAPTER 3 ACCELERATED MOTION Day Plans for the day Assignments for the day 1 3.1 Acceleration o Changing Velocity
More informationGraphing Motion Part 2
Kinematics 2: Motion Graphs & Free Fall Sep 5 10:34 AM Sep 5 1:25 PM Graphing Motion Part 2 How do you calculate the slope of a line? What would the slope of a distance vs time graph represent? What would
More informationssignment Previewer of 22 2/16/2016 12:19 PM Practice Exam Chapters 3.35.6 (Ungraded) (6043257) Due: Wed Feb 24 2016 06:00 PM EST Question 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
More informationHonors Physics Acceleration and Projectile Review Guide
Honors Physics Acceleration and Projectile Review Guide Major Concepts 1 D Motion on the horizontal 1 D motion on the vertical Relationship between velocity and acceleration Difference between constant
More informationMultiple-Choice Questions
Multiple-Choice Questions 1. A rock is thrown straight up from the edge of a cliff. The rock reaches the maximum height of 15 m above the edge and then falls down to the bottom of the cliff 35 m below
More informationProblem: Projectile (CM-1998) Justify your answer: Problem: Projectile (CM-1998) 5 10 m/s 3. Show your work: 3 m/s 2
Physics C -D Kinematics Name: AP Review Packet Vectors have both magnitude and direction displacement, velocity, acceleration Scalars have magnitude only distance, speed, time, mass Unit vectors Specify
More informationCHAPTER # 2 VECTORS THEORETICAL QUESTIONS PAST PAPERS
CHAPTER # 2 VECTORS THEORETICAL QUESTIONS PAST PAPERS 1. What are vectors and scalar quantities? Give one example of each. (1993, 2012) 2. What are the different methods of adding two vectors? (1988) 3.
More informationChapter 3 Homework Packet. Conceptual Questions
Chapter 3 Homework Packet Conceptual Questions 1) Which one of the following is an example of a vector quantity? A) mass B) area C) distance D) velocity A vector quantity has both magnitude and direction.
More informationAP* PHYSICS B DESCRIBING MOTION: KINEMATICS IN TWO DIMENSIONS &VECTORS
AP* PHYSICS B DESCRIBING MOTION: KINEMATICS IN TWO DIMENSIONS &VECTORS The moment of truth has arrived! To discuss objects that move in something other than a straight line we need vectors. VECTORS Vectors
More informationCh 2 Homework. Follow the instructions on the problems and show your work clearly.
Ch 2 Homework Name: Follow the instructions on the problems and show your work clearly. 1. (Problem 3) A person travels by car from one city to another with different constant speeds between pairs of cities.
More informationGeneral Physics (PHY 170) Chap 2. Acceleration motion with constant acceleration. Tuesday, January 15, 13
General Physics (PHY 170) Chap 2 Acceleration motion with constant acceleration 1 Average Acceleration Changing velocity (non-uniform) means an acceleration is present Average acceleration is the rate
More informationChapter 4. Motion in Two Dimensions
Chapter 4 Motion in Two Dimensions Projectile Motion An object may move in both the x and y directions simultaneously. This form of two-dimensional motion we will deal with is called projectile motion.
More informationChapter 2 Test Item File
Chapter 2 Test Item File Chapter 2: Describing Motion: Kinetics in One Dimension 1. What must be your average speed in order to travel 350 km in 5.15 h? a) 66.0 km/h b) 67.0 km/h c) 68.0 km/h d) 69.0 km/h
More informationF13--HPhys--Q4 Practice POST
Name: Class: Date: ID: A F13--HPhys--Q4 Practice POST Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Which of the following is not an example of projectile
More informationProjectile Motion. v = v 2 + ( v 1 )
What do the following situations have in common? Projectile Motion A monkey jumps from the branch of one tree to the branch of an adjacent tree. A snowboarder glides at top speed off the end of a ramp
More informationUnit 1 Test Review Physics Basics, Movement, and Vectors Chapters 2-3
A.P. Physics B Unit 1 Test Review Physics Basics, Movement, and Vectors Chapters - 3 * In studying for your test, make sure to study this review sheet along with your quizzes and homework assignments.
More informationName: Class: Date: Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. c.
Class: Date: Chapter 2 Review Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. What is the speed of an object at rest? a. 0.0 m/s c. 9.8 m/s
More informationChapter 3: Vectors and Projectile Motion
Chapter 3: Vectors and Projectile Motion Vectors and Scalars You might remember from math class the term vector. We define a vector as something with both magnitude and direction. For example, 15 meters/second
More informationMotion in Two Dimensions Reading Notes
Motion in Two Dimensions Reading Notes Name: Section 3-1: Vectors and Scalars What typeface do we use to indicate a vector? Test Your Understanding: Circle the quantities that are vectors. Acceleration
More informationUnit 2 Projectile Motion
Name: Hr: Unit 2 Projectile Motion Vocabulary Projectile: a moving object that is acted upon only by the earth s gravity A projectile may start at a given height and move toward the ground in an arc. For
More informationCollege Physics: A Strategic Approach, 3e (Knight) Chapter 2 Motion in One Dimension. 2.1 Conceptual Questions
College Physics: A Strategic Approach, 3e (Knight) Chapter 2 Motion in One Dimension 2.1 Conceptual Questions 1) Consider a deer that runs from point A to point B. The distance the deer runs can be greater
More informationINTRODUCTION AND KINEMATICS. Physics Unit 1 Chapters 1-3
INTRODUCTION AND KINEMATICS Physics Unit 1 Chapters 1-3 This Slideshow was developed to accompany the textbook OpenStax Physics Available for free at https://openstaxcollege.org/textbooks/college-physics
More information2. KINEMATICS. By Liew Sau Poh
2. KINEMATICS By Liew Sau Poh 1 OBJECTIVES 2.1 Linear motion 2.2 Projectiles 2.3 Free falls and air resistance 2 OUTCOMES Derive and use equations of motion with constant acceleration Sketch and use the
More information2-D Kinematics. In general, we have the following 8 equations (4 per dimension): Notes Page 1 of 7
2-D Kinematics The problem we run into with 1-D kinematics, is that well it s one dimensional. We will now study kinematics in two dimensions. Obviously the real world happens in three dimensions, but
More informationMotion Along a Straight Line
PHYS 101 Previous Exam Problems CHAPTER Motion Along a Straight Line Position & displacement Average & instantaneous velocity Average & instantaneous acceleration Constant acceleration Free fall Graphical
More informationPHYSICS - CLUTCH CH 02: 1D MOTION (KINEMATICS)
!! www.clutchprep.com CONSTANT / AVERAGE VELOCITY AND SPEED Remember there are two terms that deal with how much something moves: - Displacement ( ) is a vector (has direction; could be negative) - Distance
More informationKinematics 2. Kinematics Equations. How to solve a Physics problem:
Kinematics Equations Kinematics 2 How to solve a Physics problem: What is the question asking for? List the given quantities with units Equation Substitution with units Solution with units Does the answer
More informationMASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Physics 8.01 Physics Fall Term = # v x. t " =0. are the values at t = 0.
MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Physics 8.01 Physics Fall Term 2012 Exam 1: Practice Problems! d r!! d v! One-Dimensional Kinematics: v =, a = dt dt t " =t v x (t)! v x,0 = # a x (
More informationPHY 1114: Physics I. Quick Question 1. Quick Question 2. Quick Question 3. Quick Question 4. Lecture 5: Motion in 2D
PHY 1114: Physics I Lecture 5: Motion in D Fall 01 Kenny L. Tapp Quick Question 1 A child throws a ball vertically upward at the school playground. Which one of the following quantities is (are) equal
More informationPhysics 1-2 Mr. Chumbley
Physics 1-2 Mr. Chumbley Physical quantities can be categorized into one of two types of quantities A scalar is a physical quantity that has magnitude, but no direction A vector is a physical quantity
More information12/06/2010. Chapter 2 Describing Motion: Kinematics in One Dimension. 2-1 Reference Frames and Displacement. 2-1 Reference Frames and Displacement
Chapter 2 Describing Motion: Kinematics in One Dimension 2-1 Reference Frames and Displacement Any measurement of position, distance, or speed must be made with respect to a reference frame. For example,
More informationProjectile Motion B D B D A E A E
Projectile Motion Projectile motion is motion under a constant unbalanced force. A projectile is a body that has been thrown or projected. No consideration is given to the force projecting the body, nor
More information12.2 Acceleration. You will need a calculator today!
12.2 Acceleration You will need a calculator today! Acceleration Acceleration A vector that changes speed or direction or both. When a object changes velocity Measured in m/s 2 Acceleration may be positive,
More information