ifssjxl us = {f,r-.' A= # = {=
|
|
|
- Tracy Thornton
- 6 years ago
- Views:
Transcription
1 Physics 105 Exam 3 n/21t2008 As a student at NJT will conduct mysel in a proessional manner and will comply with the provisions o the NJT Academic Honor Code. also understand that must subscribe to the ollowing pledge: On my honor, pledge that have not violated the provisions o the NJT Academic Honor Code. Multiple Choice: (15 questions, pt. each) denty the letter o the choice that best answers the question. l. drop a 60-9 gol ball rom 2.0 m high. t rebounds to 1.5 m. How much energy is lost? a. 1.0 J b. 0.88J tr tr t t!!{'i - c*' =. n?,;tgl "^;^ t - ^J L "{ l.lj ->-t^tc.ll.-) '=-^J(c.,i -Lp/ )- = A i-[.i= 64F v, = a^ltr o.o6 x7,yx (z-(.r) A Hooke's law spring is compresse d 12.0 cm rom equilibrium and the potential energy stored is 72.0 J. What is the spring constant in this case? a. 1000N/m (ac* > (:-1o.o1 w=o.llal^ b. No answer is correct. c. 5000N/m /l ( D,,L 1 -D ZUs 2 issjxl us = {,r-.' A= # = {= l2oon/m = {oo.o 3. A 7'00-kg bowling ball alls rom a 2.00-m shel. Just beore hitting the loor, what will be its kinetic energy? (g: 9.S0 m/s2 and assume air resiitance is negligible) 5. both mass and velocity o a ball are tripled, the kinetic energy is increased by a actor o: a. 81. b. 9. c. 6. d. 3. {) vt rt K = -,ntt \\ L{ K,= t^,l -t 3,,^. Xl -> Y J (9,il x(1v)-=jnau" L = K yr+ 4 qtt
2 Physics 105 Exam 3 tr/21/2008 Name y', 216 J (b/. e6 J,c. 75 J d. 144 e. 240 Atrtr - o---; 2VN \ d.o,.n rra W"4= W&_,.tW).+^J = 4o^ d + (*+)x( =?(s Park shoots water hourly 311":?:ll*i:t-::1,t:"llowstone to a height o 40 water m. with leave what the ground? verocity does the a. 20 m/s Ki r 0/.i "4,,, - b. 7.0 m/s -\r- "1r YqoUd Q. zr nvs /d. 4ot,\ 14 m/s o6 e. 34 m/s / n^-;, tuul t=. 4r Ui=J ^WTV, 9' A proessional skier reaches a speed o 56 m/s on a 30o ski slope. gnoring riction, distance what arong was the the srope minimum the skier wourd have had to travel, startinirom;;ta. 720 m'.t.t -_o b. ll0m t. J.,- l,/..t-l )^, = k.t / 1^ / c. 160 m h:il* bihi -t )y2{a'trtt :r4t L r vl => =2 v / '+ = -Hlnh'*J ^',: :l=''^., 4 'S('n.'.'.':'r^-, [: nus' = K * U-r, v,i/"'""' ----'' a_,a^qh; =]^e" (Y/"'^ -_<_:::_ t on The S units or r, the spring constant, are equivalent to: a. J. \ b' J/N. "- D -t +.& ;4o h d S?n 3 o o L n/^n r ^- ( /n> gi;ii =-(.* /ndsl,tjo*iy4ui A. kg/s..t ta, 1 V e. Noneotheabove. N Yu Tvr w -*!- 2'-. ''L t'l \-tl=-t o N F/.^L, \ d =S =.5-6 =t /t^' \ z3s?r,t3o":_x-rsin \ a = {-Y s' = \ 3Lo
3 Physics 105 Exam 3 tu2t/2008 Name A l. When an object is dropped rom a tower, what is the eect o the air resistance as it alls? Ca. does positive work - L,l, b. increasestheobject'skineticenersy eststetl$t". y.l c. increases the object's potential energy, '\@il A increases the total energy othe object A. t /". )Non. o the above choices are valid. YJ i \ v /$r -ld 12. A very light cart holding a 300-N box is moved at constant velocity across a l5-m level surace. What is the A work done in the process? lar/- zero b. 20J c J d. U20 e. 2000J 13. A horizontal orce o 100 N is applied to move a 45-kg cart across a 9.0-m level surace. What work is done )34 the 100-N orce? /aj soot Y +osr c. 4500J d J e. 500 J +YVL1 -l #* tu$ Nr t--t;;->^ W= "al=(oox 7 =7c^> J 15. use a rope 2.00 m long to swing a to.o:kg weiehamri;d my a revolution how much work is done by the rope on the weight? a. 126 J b J c. 251 a2 o Z. None o the above. *kwsi"^* [AJe. = F,^. ^e^.t.: K { '9'.s Wl"L":e'l b 7 13,r,t>T tension in the rd-pe is 20 Kr T = t[t=ldxslnzo' 14. Preston pushes a wheelbarro weighing 500 N to the top o a 50.0-m ramp, inclined at 20.0o with the horizontal, and leaves it. Tamara accidentally bumps the wheelbarrow. t slides back down the ramp, during which an 80.0-N rictional orce acts on it over the 50.0 m. What is the wheelbarrow's kinetic energy at the bottom at-6t1r6?mp? (c:9.8 m/s2) a J b. 8 l50j A 14300J Ld/ 4 s50 J -L // J \=- -Ki -Ud.i N. n hal Ur, *t/,,- lrr = rl,wq h; +W,,. ---v =,t'l> F -E!D xltt/reo a pz> czt" : +ttrt -)
4 Physics 105 Exam 3 tr/21/2008 Name B As a student at NJT will conduct mysel in a proessional manner and will comply with the provisions o the NJT Academic Honor Code. also understand that must subscribeio the ollowing pledge: On my honor, pledge that have not violated the provisions o the x.rrr Acaoemic rtonor coae. Mutipe Choice: (15 questions, pt. each) denttu the letter o the choice that best answers the question.,(" r' ),{' l. both mass and velocity o a ball are tripled, the kinetic energy is increased by a actor o: a. 9. b. 27. c. 6. d. 3. e. 81. use a rope 2.00 q u;.height around my head. The tension in the rope is 20.0 N. n hal much work is done bv the rope on the weight? a. 251 J 0 vz. t, eal $u) b. 126 J c. 0 d J e. None o the above. 3. When an object is dropped rom a tower, what is the eect o the air resistance as it alls? a. increases the object,s kinetic energy b. does positive work c. increases the object,s potential energy d. increases the total energy othe object e. None o the above choices are valid. $\- 4 /#-*% gtg:l9[p!]lh9gaklkgg1)veighing 500 N to the top o a 50.0-m ramp, inclined at with the norlzontal' and leaves. it. Tamar accidentally bumps the wheelbarrow. t slides back down the ramp, during which an 80.0-N rictional orce acts on it over tho50.0 m. What is the wheelbarrow's-hinetic enersv at -- the -'- bottom Donom at o ot the ramp? (g: m/s,) n/s2) t zzg0,-g1p^11'----or a.8150j ) Xv" b J u- : *,/ c. 6550J &t d. 13 loor ( e. 4550J g,_? To 4on 5. A proessional skier reaches a speed o 56 m/s on a 30o ski slope. rltiing riciion, what was the minimum distance along the slope the skier would have had to travel, startingirom rest? a. 320m b. 640m c. ll0m d. 720m e. 160m
5 Physics 105 Exam 3 wheelbarrow? a. 961 b. 751 c. 144 J d. 240 e. 216 J rl/2t/2008 Name 3y,, A worker oushes a wheelbarrowhvith a orce o 40 N over a level distance o 6.0 m. a rictional orce o 24 irectionoppositetothatotheworker,whatnetworkisdoneonthe T;:"#M /=6ret B 0 12.@m2.omhigh. a. U.)U J /?\. ^'-T\ b. r.rr ty c. 1.0 J d J e J l* F\r - lt rebounds to 607*v?o Y\ t_ 1.5 m. How much energy is lost? l. Src'' 13. A horizontal orce o 100 N is applied to move a 45-kg cart across a 9.0-m level surace. What work is done by the 100-N orce? a. 4500J b. 900 J c. 500 J d J e. 405 J 14. A Hooke's law spring is compressed 12.0 cm rom equilibrium and the potential energy stored is 72.0 J. What is the spring constant in this case? a. 200 N/m b. 000 N/m c N/m d. No answer is correct. e. l0 000 N/m 15[ An amount o work tol.5jis to compress hat is the "launch a. b. c. d. e. " o a l5-g 23 mls 15 m/s l4 m/s l8 m/s 2l m/s, \y. t-l
CHAPTER 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
= 1 2 kx2 dw =! F! d! r = Fdr cosθ. T.E. initial. = T.E. Final. = P.E. final. + K.E. initial. + P.E. initial. K.E. initial =
Practice Template K.E. = 1 2 mv2 P.E. height = mgh P.E. spring = 1 2 kx2 dw =! F! d! r = Fdr cosθ Energy Conservation T.E. initial = T.E. Final (1) Isolated system P.E. initial (2) Energy added E added
S15--AP Q1 Work and Energy PRACTICE
Name: Class: Date: S15--AP Q1 Work and Energy PRACTICE Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Rupel pushes a box 5.00 m by applying a 25.0-N horizontal
There are two types of forces: conservative (gravity, spring force) nonconservative (friction)
Chapter 8: Conservation o Energy There are two types o orces: conservative (gravity, spring orce) nonconservative (riction) Conservative Forces Conservative Force the work done by the orce on an object
2. What would happen to his acceleration if his speed were half? Energy The ability to do work
1. A 40 kilogram boy is traveling around a carousel with radius 0.5 meters at a constant speed of 1.7 meters per second. Calculate his centripetal acceleration. 2. What would happen to his acceleration
Answer the following questions. Please, SHOW ALL YOUR WORK:
Introduction In this lab you will use conservation of mechanical energy to predict the motion of objects in situations that are difficult to analyze with force concepts. Prelab Activity Read sections 5.3,
Conservation of Mechanical Energy 8.01
Conservation o Mechanical Energy 8.01 Non-Conservative Forces Work done on the object by the orce depends on the path taken by the object Example: riction on an object moving on a level surace F riction
Physics 1A, Summer 2011, Summer Session 1 Quiz 3, Version A 1
Physics 1A, Summer 2011, Summer Session 1 Quiz 3, Version A 1 Closed book and closed notes. No work needs to be shown. 1. Three rocks are thrown with identical speeds from the top of the same building.
Physics I (Navitas) EXAM #2 Spring 2015
95.141 Physics I (Navitas) EXAM #2 Spring 2015 Name, Last Name First Name Student Identification Number: Write your name at the top of each page in the space provided. Answer all questions, beginning each
Physics I (Navitas) FINAL EXAM Fall 2015
95.141 Physics I (Navitas) FINAL EXAM Fall 2015 Name, Last Name First Name Student Identification Number: Write your name at the top of each page in the space provided. Answer all questions, beginning
Work Up an Incline. Work = Force x Distance. Push up: 1500J. What is the PE at the top? mg = 500N. An incline is a simple machine!
Quick Question Work Up an Incline The block o ice weighs 500 Newtons. How much work does it take to push it up the incline compared to liting it straight up? Ignore riction. Work Up an Incline Work = Force
Fs (30.0 N)(50.0 m) The magnitude of the force that the shopper exerts is f 48.0 N cos 29.0 cos 29.0 b. The work done by the pushing force F is
Chapter 6: Problems 5, 6, 8, 38, 43, 49 & 53 5. ssm Suppose in Figure 6. that +1.1 1 3 J o work is done by the orce F (magnitude 3. N) in moving the suitcase a distance o 5. m. At what angle θ is the orce
Potential Energy & Conservation of Energy
PHYS 101 Previous Exam Problems CHAPTER 8 Potential Energy & Conservation of Energy Potential energy Conservation of energy conservative forces Conservation of energy friction Conservation of energy external
Old Exams Questions Ch. 8 T072 Q2.: Q5. Q7.
Old Exams Questions Ch. 8 T072 Q2.: A ball slides without friction around a loop-the-loop (see Fig 2). A ball is released, from rest, at a height h from the left side of the loop of radius R. What is the
Physics 103, Practice Midterm Exam 2
Physics 103, Practice Midterm Exam 2 1) A rock of mass m is whirled in a horizontal circle on a string of length L. The period of its motion is T seconds. If the length of the string is increased to 4L
One-Dimensional Motion Review IMPORTANT QUANTITIES Name Symbol Units Basic Equation Name Symbol Units Basic Equation Time t Seconds Velocity v m/s
One-Dimensional Motion Review IMPORTANT QUANTITIES Name Symbol Units Basic Equation Name Symbol Units Basic Equation Time t Seconds Velocity v m/s v x t Position x Meters Speed v m/s v t Length l Meters
Physics 111. Lecture 18 (Walker: 8.3-4) Energy Conservation I March 11, Conservation of Mechanical Energy
Physics 111 Lecture 18 (Walker: 8.3-4) Energy Conservation I March 11, 2009 Lecture 18 1/24 Conservation o Mechanical Energy Deinition o mechanical energy: (8-6) I the only work done in going rom the initial
s_3x03 Page 1 Physics Samples
Physics Samples KE, PE, Springs 1. A 1.0-kilogram rubber ball traveling east at 4.0 meters per second hits a wall and bounces back toward the west at 2.0 meters per second. Compared to the kinetic energy
Physics 231 Lecture 9
Physics 31 Lecture 9 Mi Main points o today s lecture: Potential energy: ΔPE = PE PE = mg ( y ) 0 y 0 Conservation o energy E = KE + PE = KE 0 + PE 0 Reading Quiz 3. I you raise an object to a greater
Physics 180A Test Points
Physics 180A Test 2-120 Points Name 1) Describe each situation and fill in the blanks to the diagram below. There are 4 situations and 8 blanks. (12 pts) 2) A crate slides up an inclined ramp and then
Homework #5. Ph 231 Introductory Physics, Sp-03 Page 1 of 4
Homework #. Ph Introductory Physics, Sp-0 Page of -A. A 7 kg block moves in a straight line under the influence of a force that varies with position as shown in the figure at the right. If the force is
If there is now a constant air resistance force of 35 N, what is the new maximum height the ball attains?
A 1kg ball is launched straight up into the air with an initial speed of 64 m/s. Using only energy considerations, determine the maximum height the ball attains assuming there is no air resistance. If
Name. University of Maryland Department of Physics
Name University of Maryland Department of Physics Exam 2 (Makeup) 18. November. 2009 Instructions: Do not open this examination until the proctor tells you to begin. 1. When the proctor tells you to begin,
Name: Class: Date: so sliding friction is better so sliding friction is better d. µ k
Name: Class: Date: Exam 2--PHYS 101-F08 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. You put your book on the seat next to you. When the bus stops,
Conservative vs. Non-conservative forces Gravitational Potential Energy. Conservation of Mechanical energy
Next topic Conservative vs. Non-conservative forces Gravitational Potential Energy Mechanical Energy Conservation of Mechanical energy Work done by non-conservative forces and changes in mechanical energy
Physics 231. Topic 5: Energy and Work. Alex Brown October 2, MSU Physics 231 Fall
Physics 231 Topic 5: Energy and Work Alex Brown October 2, 2015 MSU Physics 231 Fall 2015 1 What s up? (Friday Sept 26) 1) The correction exam is now open. The exam grades will be sent out after that on
Practice Test for Midterm Exam
A.P. Physics Practice Test for Midterm Exam Kinematics 1. Which of the following statements are about uniformly accelerated motion? Select two answers. a) If an object s acceleration is constant then it
RELEASED FORM RELEASED. North Carolina Test of Physics
Name Physics Form North arolina Test of Physics RELESE Public Schools of North arolina www.ncpublicschools.org State oard of Education epartment of Public Instruction ivision of ccountability Services/North
frictionless horizontal surface. The bullet penetrates the block and emerges with a velocity of o
AP Physics Free Response Practice Momentum and Impulse 1976B2. A bullet of mass m and velocity v o is fired toward a block of mass 4m. The block is initially at rest on a v frictionless horizontal surface.
PHYS 101 Previous Exam Problems. Kinetic Energy and
PHYS 101 Previous Exam Problems CHAPTER 7 Kinetic Energy and Work Kinetic energy Work Work-energy theorem Gravitational work Work of spring forces Power 1. A single force acts on a 5.0-kg object in such
RELEASED. Go to next page. 2. The graph shows the acceleration of a car over time.
1. n object is launched across a room. How can a student determine the average horizontal velocity of the object using a meter stick and a calculator? The student can calculate the object s initial potential
Tutorial 1 Calculating the Kinetic Energy of a Moving Object
5. Energy As you learned in Section 5.1, mechanical work is done by applying orces on objects and displacing them. How are people, machines, and Earth able to do mechanical work? The answer is energy:
University of Guelph. Department of Physics
Surname Given Names Student Number University of Guelph Department of Physics PHYS*1020DE Introductory Physics Instructor: R.L. Brooks Midterm Examination 26 February 2003 90 Minutes INSTRUCTIONS: This
Unit 06 Examples. Stuff you asked about:
Unit 06 Examples Today s Concepts: 1. Force due to gravity 2. Force due to strings 3. Force due to springs (just a little bit) Mechanics Lecture 5, Slide 1 Stuff you asked about: Can you go over all of
Practice 2nd test 123
Practice 2nd test 123 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Rupel pushes a box 5.00 m by applying a 25.0-N horizontal force. What work does she
Physics 231 Lecture 12
Physics 31 Lecture 1 Work energy theorem W Potential energy o gravity: ΔPE total = = PE KE PE KE 0 mg Conservation o energy ( y ) 0 y 0 E = KE + PE = KE 0 + PE 0 Potential energy o a spring = PE = 1 kx
Physics Test VI Chapter 7 Impulse and Momentum
Physics Test VI Chapter 7 Impulse and Momentum Name: Date: Period: Honor Pledge On my honor as a student I have neither given nor received aid on this test Sign Below HW Grade: Test Grade / Mr. Stark Loudoun
Boxcars and Ropes Stopping Force in Same Distance 56
Boxcars and Ropes Stopping orce in Same Distance 56 In a western movie, a confederate raiding party stopped a runaway boxcar carrying gold by using many ropes tied to trees. Given below are six boxcars
Old Exam. Question Chapter 7 072
Old Exam. Question Chapter 7 072 Q1.Fig 1 shows a simple pendulum, consisting of a ball of mass M = 0.50 kg, attached to one end of a massless string of length L = 1.5 m. The other end is fixed. If the
(A) 10 m (B) 20 m (C) 25 m (D) 30 m (E) 40 m
Work/nergy 1. student throws a ball upward where the initial potential energy is 0. t a height of 15 meters the ball has a potential energy of 60 joules and is moving upward with a kinetic energy of 40
Boxcars and Ropes Stopping Force in Same Distance 56
Boxcars and Ropes Stopping orce in Same Distance 56 In a western movie, a confederate raiding party stopped a runaway boxcar carrying gold by using many ropes tied to trees. Given below are six boxcars
(a) On the dots below that represent the students, draw and label free-body diagrams showing the forces on Student A and on Student B.
2003 B1. (15 points) A rope of negligible mass passes over a pulley of negligible mass attached to the ceiling, as shown above. One end of the rope is held by Student A of mass 70 kg, who is at rest on
AP Physics C. Momentum. Free Response Problems
AP Physics C Momentum Free Response Problems 1. A bullet of mass m moves at a velocity v 0 and collides with a stationary block of mass M and length L. The bullet emerges from the block with a velocity
Your Name: PHYSICS 101 MIDTERM. Please circle your section 1 9 am Galbiati 2 10 am Kwon 3 11 am McDonald 4 12:30 pm McDonald 5 12:30 pm Kwon
1 Your Name: PHYSICS 101 MIDTERM October 26, 2006 2 hours Please circle your section 1 9 am Galbiati 2 10 am Kwon 3 11 am McDonald 4 12:30 pm McDonald 5 12:30 pm Kwon Problem Score 1 /13 2 /20 3 /20 4
Name: Date: Period: AP Physics C Work HO11
Name: Date: Period: AP Physics C Work HO11 1.) Rat pushes a 25.0 kg crate a distance of 6.0 m along a level floor at constant velocity by pushing horizontally on it. The coefficient of kinetic friction
Ground Rules. PC1221 Fundamentals of Physics I. Introduction to Energy. Energy Approach to Problems. Lectures 13 and 14. Energy and Energy Transfer
PC11 Fundamentals o Physics I Lectures 13 and 14 Energy and Energy Transer A/Pro Tay Seng Chuan 1 Ground Rules Switch o your handphone and pager Switch o your laptop computer and keep it No talking while
End-of-Chapter Exercises
End-of-Chapter Exercises Exercises 1 12 are conceptual questions that are designed to see if you have understood the main concepts of the chapter. 1. When a spring is compressed 10 cm, compared to its
Physics 104S12 Guide Lines for Exam 2 phy104s12. Class Exam
Physics 104S12 Guide Lines for Exam 2 phy104s12 When: March 7 th 11 11:50 PM Class Exam Where: Normal Classroom Chapters: 4 and 5 Format: 25 multiple choice questions Bring: Green Scantron Sheet, Calculator,
CPS lesson Work and Energy ANSWER KEY
CPS lesson Work and Energy ANSWER KEY 1. A ball feeder slowly pushes a bowling ball up a 1-m ramp to a height of 0.5 m above the floor. Neglecting friction, what constant force must be exerted on the 5-kg
Potential Energy. Serway 7.6, 7.7;
Potential Energy Conservative and non-conservative forces Gravitational and elastic potential energy Mechanical Energy Serway 7.6, 7.7; 8.1 8.2 Practice problems: Serway chapter 7, problems 41, 43 chapter
Physics 11 HW #6 Solutions
Physics HW #6 Solutions Chapter 6: Focus On Concepts:,,, Probles: 8, 4, 4, 43, 5, 54, 66, 8, 85 Focus On Concepts 6- (b) Work is positive when the orce has a coponent in the direction o the displaceent.
University of Colorado, Boulder, 2004 CT8-3
University of Colorado, Boulder, 2004 CT8-3 A hockey puck slides without friction along a frozen lake toward an ice ramp and plateau as shown. The speed of the puck is 4m/s and the height of the plateau
Unit 2: Vector Dynamics
Multiple Choice Portion Unit 2: Vector Dynamics 1. Which one of the following best describes the motion of a projectile close to the surface of the Earth? (Assume no friction) Vertical Acceleration Horizontal
Extra credit assignment #4 It can be handed in up until one class before Test 4 (check your course outline). It will NOT be accepted after that.
Extra credit assignment #4 It can be handed in up until one class before Test 4 (check your course outline). It will NOT be accepted after that. NAME: 4. Units of power include which of the following?
2014 Physics Exam Review
Name: ate: 1. The diagrams below show a model airplane. Which energy transformation occurs in a rubber band powered model airplane when it is flown?. Thermal energy stored in the rubber band is transformed
Choose the best answer for Questions 1-15 below. Mark your answer on your scantron form using a #2 pencil.
Name: ID #: Section #: PART I: MULTIPLE CHOICE QUESTIONS Choose the best answer for Questions 1-15 below. Mark your answer on your scantron form using a #2 pencil. 1. A 55.0-kg box rests on a horizontal
Unit 08 Work and Kinetic Energy. Stuff you asked about:
Unit 08 Work and Kinetic Energy Today s Concepts: Work & Kinetic Energy Work in a non-constant direction Work by springs Mechanics Lecture 7, Slide 1 Stuff you asked about: Can we go over the falling,
Energy Problems. Science and Mathematics Education Research Group
F FA ACULTY C U L T Y OF O F EDUCATION E D U C A T I O N Department of Curriculum and Pedagogy Energy Problems Science and Mathematics Education Research Group Supported by UBC Teaching and Learning Enhancement
Kinetic and Potential Energy Old Exam Qs
Kinetic and Potential Energy Old Exam Qs Q. A firework rocket is fired vertically into the air and explodes at its highest point. What are the changes to the total kinetic energy of the rocket and the
Physics 121k Exam 2 27 Oct 2011
Answer each question and show your work. A correct answer with no supporting reasoning may receive no credit. Unless directed otherwise, please use g=10.0 m/s 2. Name: 1. (15 points) A 3.0 kg block travels
Time dilation Gamma factor
Time dilation Gamma actor Quick derivation o the Relativistic Sqrt(1-v 2 /c 2 ) ormula or time, in two inertial systems The arrows are a light beam seen in two dierent systems. Everybody observes the light
Multiple 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
Physics Exam 2 October 11, 2007
INSTRUCTIONS: Write your NAME on the front of the blue exam booklet. The exam is closed book, and you may have only pens/pencils and a calculator (no stored equations or programs and no graphing). Show
Solutions to Physics: Principles with Applications, 5/E, Giancoli Chapter 6
CHAPTER 6 1. Because there is no acceleration, the contact orce must have the same magnitude as the weight. The displacement in the direction o this orce is the vertical displacement. Thus, W = F Æy =
Chapter 6. Work and Energy
Chapter 6 Work and Energy The Ideal Spring HOOKE S LAW: RESTORING FORCE OF AN IDEAL SPRING The restoring orce on an ideal spring is F x = k x SI unit or k: N/m The Ideal Spring Example: A Tire Pressure
PH7_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
PHYS 131 MIDTERM October 31 st, 2008
PHYS 131 MIDTERM October 31 st, 2008 The exam comprises two parts: 8 short-answer questions, and 4 problems. Calculators are allowed, as well as a formula sheet (one-side of an 8½ x 11 sheet) of your own
Name 09-MAR-04. Work Power and Energy
Page 1 of 16 Work Power and Energy Name 09-MAR-04 1. A spring has a spring constant of 120 newtons/meter. How much potential energy is stored in the spring as it is stretched 0.20 meter? 1. 2.4 J 3. 12
Name Period Date. Record all givens, draw a picture, arrow all vectors, write the formula, substitute and solve. units
Example Problems 8.4 Conservation of Energy E1. A monkey does 0.45 joule of work compressing the spring in a pop-up toy. If the mass of the toy is 0.00 kilogram, calculate the maximum vertical height that
1 1. A spring has a spring constant of 120 newtons/meter. How much potential energy is stored in the spring as it is stretched 0.20 meter?
Page of 3 Work Power And Energy TEACHER ANSWER KEY March 09, 200. A spring has a spring constant of 20 newtons/meter. How much potential energy is stored in the spring as it is stretched 0.20 meter?. 2.
AP Physics C: Mechanics Practice (Systems of Particles and Linear Momentum)
AP Physics C: Mechanics Practice (Systems of Particles and Linear Momentum) 1980M2. A block of mass m slides at velocity v o across a horizontal frictionless surface toward a large curved movable ramp
1. (P2.1A) The picture below shows a ball rolling along a table at 1 second time intervals. What is the object s average velocity after 6 seconds?
PHYSICS FINAL EXAM REVIEW FIRST SEMESTER (01/2017) UNIT 1 Motion P2.1 A Calculate the average speed of an object using the change of position and elapsed time. P2.1B Represent the velocities for linear
Name Student ID Phys121 Win2011
(1) (3 pts) The airplane in the figure below is travelling at a constant speed and at a fixed altitude with its engines providing forward thrust. Which of the free-body diagrams below best represents the
AP Physics 1: MIDTERM REVIEW OVER UNITS 2-4: KINEMATICS, DYNAMICS, FORCE & MOTION, WORK & POWER
MIDTERM REVIEW AP Physics 1 McNutt Name: Date: Period: AP Physics 1: MIDTERM REVIEW OVER UNITS 2-4: KINEMATICS, DYNAMICS, FORCE & MOTION, WORK & POWER 1.) A car starts from rest and uniformly accelerates
Physics x141 Practice Final Exam
Physics x141 Practice Final Exam Name: Partial credit will be awarded. However, you must show/explain your work. A correct answer without explanatory material will not receive full credit. Clearly indicate
Lesson 27 Conservation of Energy
Physics 0 Lesson 7 Conservation o nergy In this lesson we will learn about one o the ost powerul tools or solving physics probles utilizing the Law o Conservation o nergy. I. Law o Conservation o nergy
AP Physics C: Work, Energy, and Power Practice
AP Physics C: Work, Energy, and Power Practice 1981M2. A swing seat of mass M is connected to a fixed point P by a massless cord of length L. A child also of mass M sits on the seat and begins to swing
5. A car moves with a constant speed in a clockwise direction around a circular path of radius r, as represented in the diagram above.
1. The magnitude of the gravitational force between two objects is 20. Newtons. If the mass of each object were doubled, the magnitude of the gravitational force between the objects would be A) 5.0 N B)
Chapter 6: Work and Kinetic Energy
Chapter 6: Work and Kinetic Energy Suppose you want to find the final velocity of an object being acted on by a variable force. Newton s 2 nd law gives the differential equation (for 1D motion) dv dt =
5. The graph represents the net force acting on an object as a function of time. During which time interval is the velocity of the object constant?
1. A 0.50-kilogram cart is rolling at a speed of 0.40 meter per second. If the speed of the cart is doubled, the inertia of the cart is A) halved B) doubled C) quadrupled D) unchanged 2. A force of 25
2) A car accelerates from 5.0 m/s to 21 m/s at a rate of 3.0 m/s 2. How far does it travel while accelerating? A) 207 m B) 117 m C) 41 m D) 69 m
Name VECTORS 1) An airplane undergoes the following displacements: First, it flies 59 km in a direction 30 east of north. Next, it flies 58 km due south. Finally, it flies 100 km 30 north of west. Using
If you have a conflict, you should have already requested and received permission from Prof. Shapiro to take the make-up exam.
Reminder: Exam this Sunday Nov. 9. Chapters 5. 5.4, 3.4,.0, 6, 7. Time: 6:0 7:30 PM Look up locations online. Bring calculator and formula sheet. If you have a conflict, you should have already requested
Physics 218 Honors Exam 3 Solutions
Physics 8 Honors Exam 3 Solutions. You want to set a can of soda on an incline without it toppling over. The empty can has a mass of 00 g, the contents of a full can have a mass of 400 g. In order to stabilize
Physics Midterm Review KEY
Name: Date: 1. Which quantities are scalar? A. speed and work B. velocity and force C. distance and acceleration D. momentum and power 2. A 160.-kilogram space vehicle is traveling along a straight line
OPEN ONLY WHEN INSTRUCTED
OPEN ONLY WHEN INSTRUCTED Name: Hr: AP Physics C Mechanics Final Semester Examination Instructions: Write your name on the exam as well as scantron before you begin This exam consists of Section 1) Multiple
. d. v A v B. e. none of these.
General Physics I Exam 3 - Chs. 7,8,9 - Momentum, Rotation, Equilibrium Oct. 28, 2009 Name Rec. Instr. Rec. Time For full credit, make your work clear to the grader. Show the formulas you use, the essential
PHYSICS 221 SPRING EXAM 1: February 20, 2014; 8:15pm 10:15pm
PHYSICS 221 SPRING 2014 EXAM 1: February 20, 2014; 8:15pm 10:15pm Name (printed): Recitation Instructor: Section # INSTRUCTIONS: This exam contains 25 multiple-choice questions plus 2 extra credit questions,
Review. Kinetic Energy Work Hooke s s Law Potential Energy Conservation of Energy Power 1/91
Review Kinetic Energy Work Hooke s s Law Potential Energy Conservation of Energy Power 1/91 The unit of work is the A. Newton B. Watt C. Joule D. Meter E. Second 2/91 The unit of work is the A. Newton
GRADE 12 JUNE 2017 PHYSICAL SCIENCES P1
NATIONAL SENIOR CERTIFICATE GRADE 1 JUNE 017 PHYSICAL SCIENCES P1 MARKS: 150 TIME: 3 hours *JPHSCE1* This question paper consists o 1 pages, including a page data sheet. PHYSICAL SCIENCES P1 (EC/JUNE 017)
PHY321 Homework Set 2
PHY321 Homework Set 2 1. [5 pts] Consider the forces from the previous homework set, F A ( r )and F B ( r ), acting on a particle. The force components depend on position r of the particle according to
PH201 Chapter 5 Solutions
PH201 Chapter 5 Solutions 5.4. Set Up: For each object use coordinates where +y is upward. Each object has Call the objects 1 and 2, with and Solve: (a) The free-body diagrams for each object are shown
Physics Worksheet Work and Energy Section: Name:
1. oncept of Energy a) Energy: quantity that is often understood as the on a physical system. b) We observe only the effects of energy when something is happening. When energy is being, or when energy
Physics 20 Practice Problems for Exam 1 Fall 2014
Physics 20 Practice Problems for Exam 1 Fall 2014 Multiple Choice Short Questions (1 pt ea.) Circle the best answer. 1. An apple falls from a tree and hits the ground 5 meters below. It hits the ground
The content contained in all sections of chapter 6 of the textbook is included on the AP Physics B exam.
WORK AND ENERGY PREVIEW Work is the scalar product of the force acting on an object and the displacement through which it acts. When work is done on or by a system, the energy of that system is always
Physics 0174(CHS) Exam #1 Academic Year NAME
. Physics 0174(CHS) Exam #1 Academic Year 2015-2016 NAME This exam consists of 6 pages in addition to this page; please check to see that you have all of them. Be sure to show clearly how you arrive at
March 10, P12 Inclined Planes.notebook. Physics 12. Inclined Planes. Push it Up Song
Physics 12 Inclined Planes Push it Up Song 1 Bell Work A box is pushed up a ramp at constant velocity. Draw a neatly labeled FBD showing all of the forces acting on the box. direction of motion θ F p F
AP Physics C - Mechanics
Slide 1 / 84 Slide 2 / 84 P Physics C - Mechanics Energy Problem Solving Techniques 2015-12-03 www.njctl.org Table of Contents Slide 3 / 84 Introduction Gravitational Potential Energy Problem Solving GPE,
Base your answers to questions 5 and 6 on the information below.
1. A car travels 90. meters due north in 15 seconds. Then the car turns around and travels 40. meters due south in 5.0 seconds. What is the magnitude of the average velocity of the car during this 20.-second
Machines: Can You lift a car?
Work=Force x Distance 10 m Units of work Nt-m=joules How much work? Machines: Can You lift a car? The ratio of the input force to the output force is called the Mechanical Advantage MA=5000/50=100 1 =
Today: Work, Kinetic Energy, Potential Energy. No Recitation Quiz this week
Today: Work, Kinetic Energy, Potential Energy HW #4 due Thursday, 11:59 p.m. pm No Recitation Quiz this week 1 What is Energy? Mechanical Electromagnetic PHY 11 PHY 13 Chemical CHE 105 Nuclear PHY 555