Discuss answers with your partner only Put X on answers on your paper When you are finished – turn in your paper, get the homework, & work quietly Hit Space bar to continue 1 What is the mass of a paperclip? A. 1 gram B. 1 kilogram C. 1 Newton 2 Which of these is NOT a force? A. tension B. impulse C. friction D. centripetal Which best describes the 3 direction of this vector? 4 A. 10 ° N of E C. 10° N of W B. 10° E of N D. 10° W of N If a person walked at constant speed in a negative direction, then at constant speed in a positive direction --- which is the distance – time graph? A. B. C. How does the ball’s total energy at A compare to its total energy at B ? 5 A A. EA = EB B B. EA > EB C. EA < EB = .500 6 Which best describes the motion represented by this distance – time graph? A. Constant speed B. Getting faster C. Getting slower 7 Which graph shows a DIRECT relationship? A. B. C. 8 What does this measure? A. distance B. acceleration C. time D. none of the above 9 What is the WEIGHT of an apple? A. 1 gram B. 1 kilogram C. 1 Newton D. 1 pound 10 What is the NET FORCE on the box? 6N A. 60 N 11 B. 16 N 10 N C. 10 N D. 6 N When you hit a bug – is there more force on the bug or on the car? A. bug B. car C. same E. 4 N 12 When an object reaches terminal velocity…… A. the weight = friction force B. it accelerates less than 9.8 m/s2 C. motion stops D. the momentum is not conserved 13 What does a HORIZONTAL line mean on a VT graph? A. 0 velocity B. constant speed C. positive accleration 14 What is the equation for momentum? A. velocity x time B. force x time C. mass x velocity 15 What does it mean in physics if a quantity is “conserved”? A. constant B. closed & isolated C. saved 16 “Following through” when you swing a bat does what? A. increases the mass B. increases the time C. increases the force 17 Which describes why you lean when you drive around a bend? A. Conservation of momentum B. Conservation of Energy C. Centripetal force pushes you out D. Newton’s 1st Law 18 Which statement BEST describes the motion of the box? A. At rest B. Constant speed C. Accelerating D. Not accelerating 19 Which is the best estimate for the WEIGHT of a man? A. 50 N B. 200 N C. 800 N D. 2000 N 20 The ball started at the top of the big hill. What kinds of energy does it have in this position? A. Kinetic B. Potential C. Kinetic & Potential 21 A ball is dropped from a 10 m cliff. Which quantity DON’T you know (until you calculate it!)? A. a 22 B. vi C. d D. vf A car and a truck hit in a head-on collision. Is there more force on the car or truck? A. Car B. Truck C. depends on which was going faster D. None of the above 23. What quantity is labeled? A. r B. FE C. dE D. dR E. MA 24 ENERGY A. m/s2 25 ACCELERATION B. Joule 26 FORCE C. kilogram 27 MASS D. Newton 28 When we use this in lab, what are we usually measuring? A. Time B. Applied Force C. Weight D. Centripetal Force E. Statistics 29 What method is this? A. Breaking Into Components B. Parallelogram C. Tip to tail 30 Which of these is NOT a vector? A. velocity B. time C. force 31. What class lever is a wheel barrow? A. 1st B. 2nd C. 3rd D. 4th 32 What is the force diagram for the Yellow box? A. B. C. D. 33. If he pulls the wagon 10 meters, how much work is done? A. 200 J B. < 200 J C. > 200 J 34 What are the fundamental units that make up a JOULE? A. kg-m/s2 B. kg/m-s D. None of the above 35 What is the equation for WORK? A. Force x time B. Force x dictance C. distance / time D. none of the above C. kg-m2/s2 36 What is the equation for energy stored in a spring? A. ½ mv2 37 B. mv C. kx D. ½ kx2 What is the tendency of an object to resist change in motion? A. buoyancy B. torque C. momentum D. inertia 38 What is the force that opposes motion ? A. Weight 39 B. Friction C. Tension D. Inertia How long is the loveseat in CENTIMETERS? A. .0195 cm B. .195 cm C. 195 cm D. 1950 cm 1.95 m (Mr Tarman & Nick fell asleep waiting for Santa ) 40 What kind of energy does a compressed spring have? A. Kinetic Energy B. Elastic Potential Energy C. Gravitational Potential Energy 41 What kind of energy is stored in food? A. kinetic energy B. solar energy C. chemical potential energy D. elastic potential energy 42 Is this a reasonable diagram to show the position of a puck every .2 seconds as it slides off the end of a frictionless table? A. Yes B. No 43 “Rate of change in velocity” is A. acceleration B. work C. displacement D. impulse E. power A 44 Which line on the DT graph shows a person standing still in a positive position? B C D 45 What is force in a rope? A. friction B. torsion C. tension D. normal force 46 Which VT graph below shows the same motion as this DT graph? A. B. C. 47 A box is accelerated up a ramp with friction Which is an equation from the diagram? A. FA = W + Ff B. FA - W|| - Ff = FNET C. W = FN D. FA - W + Ff = FNET 48 How many KILOGRAMS is 500 grams? A. 500 B. 500,000 C. .500 D. 4.9 49 3m Which quantity don’t you know for the projectile? A. Vi for vertical C. d for vertical B. a for vertical D. d for horizontal 50 Which is NOT a unit to measure velocity? A. miles/hr B. cm/yr C. $/hr D. inch/day 51 What side of the triangle is THIS? A. Opposite B. Adjacent C. Hypoteneus 52 What force is RED? A. Tension B. Friction C. Centripetal D. Normal 53 What is the best estimate for the measure of the angle of the vector? A. 100º B. 200º C. 300º D. 400º 54 •••••• Does this show ACCURACY, PRECISION, or BOTH? A. accuracy B. precision C. both 55 How many SIG FIGs? A. 3 56 B. 4 567,000 C. 6 What shape is this curve? A. Hyperbola B. Ellipse C.Parabola 57. When the pitcher throws the ball to the catcher, who gives the ball a greater change in velocity? A. pitcher B. catcher C. same for both 58. This pulley system changes…… A. the size of the force B. the direction of the force C. the size & direction of the force D. none of the above 59 Balanced force : Constant speed :: Net force : ___________ A. friction B. velocity C. acceleration D. mass 60. What class lever is a canoe paddle? A. 1st B. 2nd C. 3rd D. 4th 61 Would an object have less mass on the moon than on the earth? A. YES B. NO 62 Which pair is the components of this vector? A. B. E. none of these C. D. 63. How far will a brick starting from rest fall freely in 4.0 seconds? A. 10 m B. 20 m C. 40 m D. 80 m E. 160 m 64. The diagram shows a block sliding down a plane inclined at angle with the horizontal. As angle is increased, the coefficient of kinetic friction between the bottom surface of the block and the surface of the incline will….. A. increase B. decrease C. remain the same 65.A rollercoaster travels faster than the minimum velocity around the loop. What is the equation from the force diagram when it is at the top of the loop? A. W - FN = FNET B. W + FN = FNET C. W = FN D. W = FNET 66.What is the equation from the force diagram for one of these balloons? A. T = FB B. W = FB C. W - FB = FNET D. FB - W = FNET E. none of the above 67. As an object falls freely, the kinetic energy of the object A. increases B. decreases C. remains the same 68. What is the IMA of this set of pulleys? A. 2 B. 3 C. 4 D. 5 69. The ball is whirled at constant speed in a vertical circle with a string. What is the direction is the NET force when it is in this position? A. Right B. Left C. Up D. Down E. There is no net force 70. What is the NET torque? A. 3 N-m clockwise B. 3 N-m counter clockwise C. 17 N-m clockwise D. 17 N-m counter clockwise E. 65 N-m clockwise 71.The candle is floating in water. FB = Vg Which statement is NOT true? A. the weight of the candle = buoyant force B. V is the volume of fluid displaced C. is the density of wax D. there is no normal force on the candle E. all statements are true 72 Which VT graph below shows the same motion as the DT graph above? A. B. D. None of the above C. 7 7 7 7 77. If both balls have the same mass & are submerged in water, which is the same for both balls? A. the fluid displaced B. the tension in the string C. the equation from the force diagram A. the density of the balls B. NONE of the above