Name Class Date. Step 3: Insert the known values into the equation, and solve.
|
|
- Martin Burns
- 6 years ago
- Views:
Transcription
1 Skills Worksheet Math Skills Work After you study each sample problem and solution, work out the practice problems on a separate sheet of paper. Write your answers in the spaces provided. PROBLEM A car has run out of gas. Fortunately, there is a gas station nearby. You must exert a force of 715 N on the car in order to move it. By the time you reach the station, you have done J of work. How far have you pushed the car? SOLUTION Step 1: List the given and unknown values. Given: force, F = 715 N work, W = J Unknown: distance, d =? m Step 2: Rearrange the work equation to solve for distance. work = force distance W = Fd Step 3: Insert the known values into the equation, and solve. d = 38.0 m PRACTICE 1. You must exert a force of 4.5 N on a book to slide it across a table. If you do 2.7 J of work in the process, how far have you moved the book? Holt Science Spectrum 83 Work and Energy
2 2. A catcher picks up a baseball from the ground. If the unbalanced force on the ball is N and J of work is done to lift the ball, how far does the catcher lift the ball? 3. The smallest bird is the Cuban bee hummingbird, which has a mass of only 1.7 g. If this bird did J of work by exerting an upward force of N, how far did it fly? 4. The world s most powerful tugboats are built in Finland. One of these boats can do J of work through a distance of 35 m. What is the force exerted by the tugboat? 5. A child pulls a sled up a snow-covered hill. In the process, the child does 405 J of work on the sled. If she walks a distance of 15 m up the hill, how large a force does she exert on the sled? Holt Science Spectrum 84 Work and Energy
3 Math Skills continued PROBLEM Suppose a weightlifter s power output is 178 W during the time he does 3,310 J of work on the weights. How long does it take the weightlifter to raise the weights? SOLUTION Step 1: List the given and unknown values. Given: power, P = 178 W work, W = 3,310 J Unknown: time, t =? s Step 2: Rearrange the power equation to solve for time. Step 3: Insert the known values into the equation, and solve. t = 18.6 s PRACTICE 6. In order to sail through the frozen Arctic Ocean, the most powerful icebreaker ever built was constructed in the former Soviet Union. At the heart of the ship s power plant is a nuclear reactor with a power output of W. How long will it take for this power plant to do J of work? Holt Science Spectrum 85 Work and Energy
4 7. The heaviest loads ever raised were part of the offshore Ekofisk complex in the North Sea. The kg complex was raised 6.5 m by over a hundred hydraulic jacks. The work done on the complex during the raising was approximately J. Suppose the power output of all the jacks was W. How long did it take the jacks to raise the complex? 8. Borax was mined in Death Valley, California, during the nineteenth century. It was transported from the valley by massive86wagons, each pulled by a team of 21 mules. Suppose each mule s power output was 746 W (about 1 hp). If in a certain time interval the total work done by the team on the wagon was J, how long was that interval of time? 9. A certain steam turbine is designed to be used as both a power generator and as a pump. When used as a generator, the turbine provides enough power to do J of work in 1 min. What is the power output of the turbine? 10. The space shuttle, which was first launched on April 12, 1981, is the world s first reusable space vehicle. The shuttle is placed in orbit by three engines that do J of work in 8.5 min. What is the power output of these engines? Holt Science Spectrum 86 Work and Energy
5 Skills Worksheet Math Skills Mechanical Advantage After you study each sample problem and solution, work out the practice problems on a separate sheet of paper. Write your answers in the spaces provided. PROBLEM A wheelbarrow has a mechanical advantage of 2.2. The output distance extends from the load s center of mass to the wheel, and the input distance is from the handles to the wheel. For an output distance of 0.45 m, what is the input distance? SOLUTION Step 1: List the given and unknown values. Given: mechanical advantage = 2.2 output distance = 0.45 m Unknown: input distance =? m Step 2: Write the mechanical advantage equation, and rearrange it to solve for input distance. Because the given information involves only distance, only the second form of the equation is needed. Step 3: Insert the known values into the equation, and solve. input distance = m input distance = 0.99 m PRACTICE 11. If an input force of 202 N is applied to the handles of the wheelbarrow in the sample problem, how large is the output force that just lifts the load? Holt Science Spectrum 87 Work and Energy
6 12. Suppose you need to remove a nail from a board by using a claw hammer. What is the input distance for a claw hammer if the output distance is 2.0 cm and the mechanical advantage is 5.5? 13. An axe is driven into a piece of wood a distance of 3.0 cm. If the mechanical advantage of the axe is 0.85, how far is the wood split? 14. The mechanical advantage of a wheel and axle is If the wheel s output force is N, what is the input force that turns the axle? 15. An Archimedean screw is a screw within a closely fitting cover, so that water can be raised when the screw is turned. The screw has a mechanical advantage of If the screw is turned several times, so that the input distance is 1.57 m, how much water has been lifted upward by the screw? Holt Science Spectrum 88 Work and Energy
Work, Power and Machines
CHAPTER 13.1 & 13.2 Work, Power and Machines Section one: Work, Power, and Machines Objective one: Calculate Work Objective Two: Differentiate Work and Power Objective Three: Discover that machines make
More informationCHAPTER 5. Work, Power and Machines
CHAPTER 5 Work, Power and Machines Section one: Work, Power, and Machines Objective one: Calculate Work Objective Two: Differentiate Work and Power Objective Three: Discover that machines make work easier
More informationName Class Date. Step 3: Insert the known values into the equation, and solve.
Name Class Date Skills Worksheet Math Skills Newton s Second Law PROBLEM The force of gravity between the moon and an object near its surface is much smaller than the force of gravity between Earth and
More informationWork, Power, & Machines
Work, Power, & Machines 1 What is work? To many people, the word work means something they do to earn money. The word work also means exerting a force with your muscles. 1 What is work? Someone might say
More informationChapter 10-Work, Energy & Power
DULLES HIGH SCHOOL Chapter 10-Work, Energy & Power Energy Transformations Judy Matney 1/12/2016 In this chapter, we will study the concepts of force and work; we will understand the transformations of
More informationSection 1: Work, Power, and Machines. Preview Key Ideas Bellringer What Is Work? Math Skills Power Machines and Mechanical Advantage
Section 1 Section 1: Work, Power, and Machines Preview Key Ideas Bellringer What Is Work? Math Skills Power Machines and Mechanical Advantage Section 1 Key Ideas How is work calculated? What is the relationship
More informationChapter 8 Study Questions
Chapter 8 Study Questions Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. Work is being done when a. you apply a force to an object. b. an
More informationIsaac Newton was a British scientist whose accomplishments
E8 Newton s Laws of Motion R EA D I N G Isaac Newton was a British scientist whose accomplishments included important discoveries about light, motion, and gravity. You may have heard the legend about how
More informationacceleration weight load
Instructions for Vocabulary Cards: Please photocopy the following pages onto heavy card stock (back to back, so the word is printed on the back side of the matching definition). Then, laminate each page.
More informationChapter: Work and Machines
Table of Contents Chapter: Work and Machines Section 1: Work Section 2: Using Machines Section 3: Simple Machines 1 Work What is work? To many people, the word work means something they do to earn money.
More informationName Class Date. Complete each of the following sentences by choosing the correct term from the word bank.
Skills Worksheet Chapter Review USING KEY TERMS Complete each of the following sentences by choosing the correct term from the word bank. free fall projectile motion inertia terminal velocity momentum
More informationSection 1: Work and Power. Section 2: Using Machines. Section 3: Simple Machines
Table of Contents Chapter: Work and Simple Machines Section 1: Work and Power Section 2: Using Machines Section 3: Simple Machines 1 Work and Power What is work? Work is done when a force causes an object
More informationExample 2. Example 1. Example 4. Example 3. Kinetic Energy. Kinetic Energy 11/19/15
A tugboat pulls a ship with a constant net horizontal force of 5.00 x 10 3 N and causes the ship to move through a harbor. How much work is done on the ship if it moves a distance of 3.00 km? Example A
More informationWhat is Energy? Which has more energy? Who has more energy? 1/24/2017
What is Energy? Energy is a measure of an object s ability to cause a change in itself and/or its surroundings Read pages 61-7 Which has more energy? Who has more energy? Mississippi River Cargo Barge
More informationPH7_UnitPacketCompleteKey
Page 1 of 45 Page 2 of 45 Unit Packet Contents 1. Unit Objectives 2. Notes: Potential / Kinetic Energy 3. Guided Practice: Potential and Kinetic Energy 4. Independent Practice Potential and Kinetic Energy
More informationName Class Date. speed, v? m/s Step 2: Rearrange the momentum equation to solve for speed. momentum mass speed p mv. m m. v p m
Skills Worksheet Math Skills Momentum After you study each sample problem and solution, work out the practice problems on a separate sheet of paper. Write your answers in the spaces provided. Problem Thoroughbred
More informationForces. A Force is a push or a pull on an object. Forces can cause a resting object to move
13.2 Forces Forces A Force is a push or a pull on an object Forces can cause a resting object to move Forces can cause a moving object to accelerate by changing its speed or its direction Measuring Force
More informationWork and Energy Chapter 4 and 5
Section 1 Work and Energy Chapter 4 and 5 Motion Read Chapter 4 pages 100 121 and Chapter 5 pages: 126-153 Objectives: - Distinguish between kinetic and potential energy; calculate kinetic energy, describe
More information2 nd Term Final. Revision Sheet. Students Name: Grade: 9 A/B. Subject: Physics. Teacher Signature
2 nd Term Final Revision Sheet Students Name: Grade: 9 A/B Subject: Physics Teacher Signature 1 PHYSICS WORKSHEET GRADE: 9 MULTIPLE CHOICES In the space provided, write the letter of the term or phrase
More informationDirected Reading A. Section: Friction: A Force That Opposes Motion THE SOURCE OF FRICTION. Skills Worksheet
Skills Worksheet Directed Reading A Section: Friction: A Force That Opposes Motion Write the letter of the correct answer in the space provided. (pp. 350 355) 1. Which of the following is a force that
More informationForces. A Force is a push or a pull on an object. Forces can cause a resting object to move
13.2 Forces Forces A Force is a push or a pull on an object Forces can cause a resting object to move Forces can cause a moving object to accelerate by changing its speed or its direction Measuring Force
More informationMomentum, Work and Energy Review
Momentum, Work and Energy Review 1.5 Momentum Be able to: o solve simple momentum and impulse problems o determine impulse from the area under a force-time graph o solve problems involving the impulse-momentum
More informationName. Honors Physics AND POTENTIAL KINETIC
KINETIC Name Honors Physics AND POTENTIAL Name Period Work and Energy Intro questions Read chapter 9 pages 144 146 (Section 9.1) 1. Define work in terms of physics? 2. In order to do work on an object,
More informationUnit 10: Work and Energy. * When the object moves, it must move in the same direction as the force for there to be work.
Work: Occurs as a force is applied over a distance. Ex: *It is a vector. (Has a number and direction) Unit 10: Work and Energy *If there is no movement, there is no work on that object. * When the object
More information4. The diagram below represents two concurrent forces.
1. Two 20.-newton forces act concurrently on an object. What angle between these forces will produce a resultant force with the greatest magnitude? A) 0º B) 45º C) 90.º D) 180.º 2. Two forces act concurrently
More informationIB PHYSICS SL SEMESTER 1 FINAL REVIEW
Class: Date: IB PHYSICS SL SEMESTER 1 FINAL REVIEW Multiple Choice Identify the choice that best completes the statement or answers the question. 1. A rocket is fired vertically. At its highest point,
More informationSimple Machines. Bởi: OpenStaxCollege
F Simple Machines Simple Machines Bởi: OpenStaxCollege Simple machines are devices that can be used to multiply or augment a force that we apply often at the expense of a distance through which we apply
More informationCHAPTER 5. Chapter 5, Energy
CHAPTER 5 2. A very light cart holding a 300-N box is moved at constant velocity across a 15-m level surface. What is the net work done in the process? a. zero b. 1/20 J c. 20 J d. 2 000 J 4. An rock is
More information1d forces and motion
Name: ate: 1. car accelerates uniformly from rest to a speed of 10 meters per second in 2 seconds. The acceleration of the car is 4. book weighing 20. newtons slides at constant velocity down a ramp inclined
More informationWork Work has a variety of meanings (taking out the trash is hard work; the toaster doesn t work; Mom goes to work)
Physics Work, Power, and Energy Notes (Chapter 8 in Textbook) Key Terms Work Power Energy Potential Kinetic Mechanical Energy Law of Conservation of Energy Work-Energy Theorem Joule Watt Work Work has
More information7. Two forces are applied to a 2.0-kilogram block on a frictionless horizontal surface, as shown in the diagram below.
1. Which statement about the movement of an object with zero acceleration is true? The object must be at rest. The object must be slowing down. The object may be speeding up. The object may be in motion.
More informationWORK & ENERGY. Work W = Fdcosα 1. A force of 25.0 Newtons is applied so as to move a 5.0 kg mass a distance of 20.0 meters. How much work was done?
PHYSICS HOMEWORK #41 Work W = Fdcosα 1. A force of 25.0 Newtons is applied so as to move a 5.0 kg mass a distance of 20.0 meters. How much work was done? 2. A force of 120 N is applied to the front of
More informationWork, Power and Simple Machines. Chapter 4 Physical Science
Work, Power and Simple Machines Chapter 4 Physical Science Work, Power and Simple Machines Machines make jobs easier by increasing the applied force on an object. The trade-off is that this also requires
More informationWEP-Work and Power. What is the amount of work done against gravity as an identical mass is moved from A to C? J J J 4.
1. The work done in accelerating an object along a frictionless horizontal surface is equal to the change in the object s 1. momentum 2. velocity 3. potential energy 4. kinetic energy 2. The graph below
More informationAnswers. Forces. Year 7 Science Chapter 8
Answers Forces Year 7 Science Chapter 8 p173 1 Steering a car involves pulling on the steering wheel. A climb in the plane involves a pull from the propellor and a pull from gravity on the plane. A horse
More information1 Work, Power, and Machines
CHAPTER 13 1 Work, Power, and Machines SECTION Work and Energy KEY IDEAS As you read this section, keep these questions in mind: What is work, and how is it measured? How are work and power related? How
More informationThe Laws of Motion. Newton s Second Law
The Laws of Motion Newton s Second Law Key Concepts What is Newton s second law of motion? How does centripetal force affect circular motion? What do you think? Read the two statements below and decide
More informationDirected Reading A. Section: Gravity: A Force of Attraction. force of. THE EFFECTS OF GRAVITY ON MATTER. of.
Skills Worksheet Directed Reading A Section: Gravity: A Force of Attraction 1. The force of attraction between two objects that is due to their masses is the force of. 2. Why do astronauts on the moon
More informationAP Physics 1 Work Energy and Power Practice Test Name
AP Physics 1 Work Energy and Power Practice Test Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Two objects, one of mass m and the other
More informationForce Test Review. 1. Give two ways to increase acceleration. You can increase acceleration by decreasing mass or increasing force.
Force Test Review 1. Give two ways to increase acceleration. You can increase acceleration by decreasing mass or increasing force. 2. Define weight. The force of gravity on an object at the surface of
More informationMultiple Choice Practice
Class: Date: Multiple Choice Practice Multiple Choice Identify the choice that best completes the statement or answers the question. 1. An ice skater moving at 10.0 m/s coasts to a halt in 1.0 10 2 m on
More informationPhysics Midterm Review Sheet
Practice Problems Physics Midterm Review Sheet 2012 2013 Aswers 1 Speed is: a a measure of how fast something is moving b the distance covered per unit time c always measured in units of distance divided
More informationAn object moves back and forth, as shown in the position-time graph. At which points is the velocity positive?
1 The slope of the tangent on a position-time graph equals the instantaneous velocity 2 The area under the curve on a velocity-time graph equals the: displacement from the original position to its position
More informationGalileo & Friction 2000 yrs prior to inertia idea, the popular belief was that all objects want to come to a rest. BUT 1600's: Galileo reasoned that
Galileo & Friction 2000 yrs prior to inertia idea, the popular belief was that all objects want to come to a rest. BUT 1600's: Galileo reasoned that moving objects eventually stop only because of a force
More informationW = Fd. KE = 1 2 mv2
Ch 10 Energy, Work and Simple Machines work: moving an object in the direction of the force exerted upon it (Joules) work W = Fd force (Newtons) (meters) distance object is displaced in the direction of
More information4.6 Free Body Diagrams 4.7 Newton's Third Law.notebook October 03, 2017
Free Body Diagrams Section 4.6 Free Body Diagrams Text: p. 112 QuickCheck 4.11 An elevator, lifted by a cable, is moving upward and slowing. Which is QuickCheck 4.11 An elevator, lifted by a cable, is
More information4 Conservation of Energy
CHAPTER 13 4 Conservation of Energy SECTION Work and Energy KEY IDEAS As you read this section, keep these questions in mind: How can energy change from one form to another? What is the law of conservation
More informationChapter 14 Learning Objectives-Study this for TEST. Chapter 14 Work and Power
Chapter 14 ork and Power GOAL: Students will be able to compare and contrast work and power qualitatively and quantitatively. Standard: SC.912.P.10.3 Students will: Level Scale 4 design and conduct experiments
More informationGalileo said. Marbles rolled down a ramp will reach the same height as that from which they are released no matter how long the ramp.
The Law of Inertia Galileo said Marbles rolled down a ramp will reach the same height as that from which they are released no matter how long the ramp. So, what if the ramp is flat? Newton said Objects
More informationPhysics Test Review: Mechanics Session: Name:
Directions: For each statement or question, write in the answer box, the number of the word or expression that, of those given, best completes the statement or answers the question. 1. The diagram below
More informationChapter 7 Newton s Third Law
Chapter 7 Newton s Third Law Chapter Goal: To use Newton s third law to understand interacting objects. Slide 7-2 Chapter 7 Preview Slide 7-3 Chapter 7 Preview Slide 7-4 Chapter 7 Preview Slide 7-6 Chapter
More informationScience 9 Physics CHAPTER 13: WORK AND ENERGY MR. MILLER
Science 9 Physics CHAPTER 13: WORK AND ENERGY MR. MILLER WORK Work: The transfer of energy to an object by the application of a force that causes the object to move in the direction of the force. WORK
More informationName Date P Lesson 4 Forces and Simple Machines
Lesson 4 Forces and Simple Machines OAA Science Lesson 4 40 Lesson 4: Forces and Simple Machines Student s Reference Sheet: 6 Simple Machines: Screw - Swivel Stool - Spiral Stair Case - Inclined Plane
More informationLesson 1: How can you describe motion?
Lesson 1 Summary Use with pp. 407 409 Lesson 1: How can you describe motion? Vocabulary velocity the speed and direction of an object s motion Types of Motion Motion is movement. When you see something
More informationFORCES AND MOTION UNIT TEST. Multiple Choice: Draw a Circle Completely around the ONE BEST answer.
Name: Date: Period: FORCES AND MOTION UNIT TEST Multiple Choice: Draw a Circle Completely around the ONE BEST answer. 1. A force acting on an object does no work if a. a machine is used to move the object.
More informationNational 5 Dynamics and Space Self Checks
National 5 Dynamics and Space Self Checks 1.1 Kinematics Speed, Distance and Time 1. A runner completes a 200 m race in 25 s. What is his average speed? 2. An athlete takes 4 minutes 20 s to complete a
More information3 Fluids and Motion. Critical Thinking
CHAPTER 3 3 Fluids and Motion SECTION Forces in Fluids BEFORE YOU READ After you read this section, you should be able to answer these questions: How does fluid speed affect pressure? How do lift, thrust,
More informationEfficiency = power out x 100% power in
Work, Energy and Power Review Package 1) Work: change in energy. Measured in Joules, J. W = Fd W = ΔE Work is scalar, but can be negative. To remember this, ask yourself either: Is the object is losing
More information5. Use the graph below to determine the displacement of the object at the end of the first seven seconds.
Name: Hour: 1. The slope of the tangent on a position-time graph equals the: Sem 1 Exam Review Advanced Physics 2015-2016 2. The area under the curve on a velocity-time graph equals the: 3. The graph below
More informationVocabulary and Section Summary A
Skills Worksheet Vocabulary and Section Summary A Measuring Motion VOCABULARY In your own words, write a definition of the following terms in the space provided. 1. motion 2. average speed 3. velocity
More informationMACHINES AND MOTION SECTION 1: USING FORCE TO DO WORK
MACHINES AND MOTION SECTION 1: USING FORCE TO DO WORK STANDARDS: Students will measure length, weight, temperature, and liquid volume with appropriate tools and express those measurements in standard metric
More informationMomentum, Impulse, Work, Energy, Power, and Conservation Laws
Momentum, Impulse, Work, Energy, Power, and Conservation Laws 1. Cart A has a mass of 2 kilograms and a speed of 3 meters per second. Cart B has a mass of 3 kilograms and a speed of 2 meters per second.
More informationSection /07/2013. PHY131H1F University of Toronto Class 12 Preclass Video by Jason Harlow. Based on Knight 3 rd edition Ch. 7, pgs.
PHY131H1F University of Toronto Class 12 Preclass Video by Jason Harlow Section 7.1 Based on Knight 3 rd edition Ch. 7, pgs. 167-184 When a hammer hits a nail, it exerts a forward force on the nail At
More informationPhysics Spring Final Review C O N C E P T U A L P H Y S I C S : F I R S T & S E C O N D S E M E S T E R
Name Date Period Physics Spring Final Review C O N C E P T U A L P H Y S I C S : F I R S T & S E C O N D S E M E S T E R Directions: Answer the following questions based on in-class notes, worksheets,
More informationPHY 126 Lecture Notes Chapter 10
Chapter 10 Simple Machines OBJECTIVES Define a machine Examine energy transfer in machine to determine Mechanical Advantage and Energy Efficiency KEY WORDS: Simple and complex machines, Effort and resistance
More informationName Class Date. In the space provided, write the letter of the term or phrase that best completes each statement or best answers each question.
Assessment Chapter Test A ork and Energy MULTIPLE CHOICE In the space provided, write the letter of the term or phrase that best completes each statement or best answers each question. 1. In which of the
More informationEnergy "is an abstract concept invented by scientists in the nineteenth century to describe quantitatively a wide variety of natural phenomena.
Energy Energy "is an abstract concept invented by scientists in the nineteenth century to describe quantitatively a wide variety of natural phenomena." David Rose What is energy? Energy makes changes;
More informationEnergy Review Guide Name: Date: Period:
Name: Date: Period: You are to use this review guide in addition to the study cards you should have already created using the guide previously given to you. I can state and explain the Law of Conservation
More informationStatic and Kinetic Friction, Normals, Equilibrium and Accelerated Motion
Static and Kinetic Friction, Normals, Equilibrium and Accelerated Motion 1. A baseball player slides into home base with an initial speed of 7.90 m/s. If the coefficient of kinetic friction between the
More informationChapter 6 Energy and Oscillations
Chapter 6 Energy and Oscillations Conservation of Energy In this chapter we will discuss one of the most important and fundamental principles in the universe. Energy is conserved. This means that in any
More informationIsaac Newton was a British scientist whose accomplishments
E8 Newton s Laws of Motion R EA D I N G Isaac Newton was a British scientist whose accomplishments included important discoveries about light, motion, and gravity. You may have heard the legend about how
More information1. A 7.0-kg bowling ball experiences a net force of 5.0 N. What will be its acceleration? a. 35 m/s 2 c. 5.0 m/s 2 b. 7.0 m/s 2 d. 0.
Newton's Laws 1. A 7.0-kg bowling ball experiences a net force of 5.0 N. What will be its acceleration? a. 35 m/s 2 c. 5.0 m/s 2 b. 7.0 m/s 2 d. 0.71 m/s 2 2. An astronaut applies a force of 500 N to an
More informationA N D. c h a p t e r 1 2 M O T I O N F O R C E S
F O R C E S A N D c h a p t e r 1 2 M O T I O N What is a FORCE? A FORCE is a push or pull that acts on an object. A force can cause a resting object to move OR Accelerate a moving object by: changing
More informationact concurrently on point P, as shown in the diagram. The equilibrant of F 1
Page 1 of 10 force-friction-vectors review Name 12-NOV-04 1. A 150.-newton force, F1, and a 200.-newton force, F 2, are applied simultaneously to the same point on a large crate resting on a frictionless,
More informationName Period Date. Record all givens, draw a picture, arrow all vectors, write the formula, substitute and solve. units
Example Problems 5.1 Force and Acceleration E1. A monkey pushes his pet lemur in a wagon with a net force of 38 N. If the mass of the lemur and wagon combined is 57 kg, calculate the acceleration of the
More informationMomentum, Impulse, Work, Energy, Power, and Conservation Laws
Momentum, Impulse, Work, Energy, Power, and Conservation Laws 1. Cart A has a mass of 2 kilograms and a speed of 3 meters per second. Cart B has a mass of 3 kilograms and a speed of 2 meters per second.
More informationUnit 2: Newton s Laws Note 1 : Forces
Unit 2: Newton s Laws Note 1 : Forces Force: The units of force are: There are four fundamental forces that make up all of the forces in the universe: 1) 2) 3) 4) Force of Gravity Force of Gravity: The
More informationStudy Guide For Midterm - 25 weeks Physics Exam. d. the force exerted by a towing cable on the car. c. the upward force the road exerts on the car.
Name: Class: Date: ID: A Study Guide For Midterm - 25 weeks Physics Exam Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Which of the following is the
More informationChapter 2 Physics in Action Sample Problem 1 A weightlifter uses a force of 325 N to lift a set of weights 2.00 m off the ground. How much work did th
Chapter Physics in Action Sample Problem 1 A weightlifter uses a force of 35 N to lift a set of weights.00 m off the ground. How much work did the weightlifter do? Strategy: You can use the following equation
More informationName Class Date. Energy Energy
CHAPTER 13 3 What Is Energy? SECTION Work and Energy KEY IDEAS As you read this section, keep these questions in mind: How are energy and work related? Why is potential energy called energy of position?
More informationPhysics 8 Wednesday, November 9, 2011
Physics 8 Wednesday, November 9, 2011 For HW8 problems to sketch out in class, I got 5 requests for # 9 3 requests for # 3 2 requests for # 14 1 request each for # 2, 7, 10, 11, 15, 19 I will be in DRL
More informationSection 1 Work, Power, and Machines
Chapter 12 Work and Energy Section 1 Work, Power, and Machines Section 2 Simple Machines Section 3 What is Energy? Section 4 Conservation of Energy Skills Experiment Design SI Units and SI unit conversions
More information5. A balloon of a known mass or weight is dropped from a known height and timed. Determine the average amount of air resistance that acts on it.
1. A satellite of mass 50.0 kg is pulled by 450 N of gravity. Small thrusters are used to maneuver the satellite in its orbit. (a) What thrust would cause the satellite to move with a constant velocity?
More informationSteps to Solving Newtons Laws Problems.
Mathematical Analysis With Newtons Laws similar to projectiles (x y) isolation Steps to Solving Newtons Laws Problems. 1) FBD 2) Axis 3) Components 4) Fnet (x) (y) 5) Subs 1 Visual Samples F 4 1) F 3 F
More information10 Work, Energy, and Machines BIGIDEA
10 Work, Energy, and Machines BIGIDEA Write the Big Idea for this chapter. Use the What I Know column to list the things you know about the Big Idea. Then list the questions you have about the Big Idea
More informationWork, Power and Energy Worksheet. 2. Calculate the work done by a 47 N force pushing a kg pencil 0.25 m against a force of 23 N.
Work, Power and Energy Worksheet Work and Power 1. Calculate the work done by a 47 N force pushing a pencil 0.26 m. 2. Calculate the work done by a 47 N force pushing a 0.025 kg pencil 0.25 m against a
More informationWork and Energy CHAPTER 12. Chapter Preview. srthe s. 376 Copyright by Holt, Rinehart and Winston. All rights reserved.
CHAPTER 12 Work and Energy srthe s Chapter Preview 1 Work, Power, and Machines What Is Work? Power Machines and Mechanical Advantage 2 Simple Machines The Lever Family The Inclined Plane Family Compound
More information9/20/11. Physics 101 Tuesday 9/20/11 Class 8" Chapter " Weight and Normal forces" Frictional Forces"
Reading Quiz Physics 101 Tuesday 9/20/11 Class 8" Chapter 5.6 6.1" Weight and Normal forces" Frictional Forces" The force due to kinetic friction is usually larger than the force due to static friction.
More information1. Two forces act concurrently on an object on a horizontal, frictionless surface, as shown in the diagram below.
Name Vectors Practice 1. Two forces act concurrently on an object on a horizontal, frictionless surface, as shown in the diagram below. What additional force, when applied to the object, will establish
More informationPhysics 2204 UNIT 2 Exam: Forces and Newton s Laws
Physics 2204 UNIT 2 Exam: Forces and Newton s Laws 2005-06 Time: 60 minutes Total Value: 35 marks Formulae and Constants: + - V = = a = av t d tot V1 V 2 V 2 V1 V av tot 2 t 1 2 1 2 2 2 d = Vt 1 + 2at
More informationEssentially, the amount of work accomplished can be determined two ways:
1 Work and Energy Work is done on an object that can exert a resisting force and is only accomplished if that object will move. In particular, we can describe work done by a specific object (where a force
More informationDynamics-Friction. 1. Which vector diagram best represents a cart slowing down as it travels to the right on a horizontal surface?
1. Which vector diagram best represents a cart slowing down as it travels to the right on a horizontal surface? Base your answers to questions 2 and 3 on the information A student and the waxed skis she
More informationMoments practice exam questions
Moments practice exam questions Name - 50 minutes 48 marks Page 1 of 13 Q1. A waiter holds a tray horizontally in one hand between fingers and thumb as shown in the diagram. P, Q and W are the three forces
More informationName Class Date. height. Which ball would land first according to Aristotle? Explain.
Skills Worksheet Directed Reading A Section: Gravity and Motion 1. Suppose a baseball and a marble are dropped at the same time from the same height. Which ball would land first according to Aristotle?
More informationDirected Reading B. Section: Newton s Laws of Motion NEWTON S FIRST LAW OF MOTION
Skills Worksheet Directed Reading B Section: Newton s Laws of Motion NEWTON S FIRST LAW OF MOTION Part 1: Objects at Rest 1. Which is NOT an example of an object at rest? a. a golf ball on a tee b. a jet
More informationNewton s Second and Third Laws
Section 3 Objectives Describe an object s acceleration in terms of its mass and the net force acting on it. Predict the direction and magnitude of the acceleration caused by a known net force. Identify
More informationUNIT 4: FORCES IN NATURE Test review: 4_1_ Forces in nature. Fundamentals
UNIT 4: FORCES IN NATURE Test review: 4_1_ Forces in nature. Fundamentals 1. Contact forces are examples of which of the fundamental forces? a. Strong c. Weak b. Electromagnetic d. Gravitational 2. The
More information3 Friction: A Force That Opposes Motion
CHAPTER 1 SECTION Matter in Motion 3 Friction: A Force That Opposes Motion BEFORE YOU READ After you read this section, you should be able to answer these questions: What is friction? How does friction
More informationSt. Mary's H.S. Physics. Midterm Review
Name Midterm Review St. Mary's H.S. Physics 1. If a car accelerates uniformly from rest to 15 meters per second over a distance of 100. meters, the magnitude of the car s acceleration is A) 0.15 m/s 2
More informationHow Do Objects Move? Describing Motion. Different Kinds of Motion
How Do Objects Move? Describing Motion Different Kinds of Motion Motion is everywhere. The planets are in motion around the Sun. Cars are in motion as they are driven down the street. There s even motion
More information