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1) The rate of change in velocity over a period of time is called____________. 2) The ___of a velocity/time graph is equal to the acceleration of an object. 3) The ___of a distance / time graph is equal to the velocity of an object. Describe te type of motion sown in eah of the graphs below 4) 5) 6) 7) 9)

10) 11) 12) 13) 14) 15) A car and truck stop at an intersection accelerate away from the intersection at the same rate. If the car accelerates twice the time as the truck, the distance the car travels is__ the truck distance. 16) A ball is thrown upwards into the air with a velocity v. It is airborne for Δt seconds. It lands at the same position it was released. It reaches its highest point at_____seconds. 17) The _____of a velocity/ time graph is equal to the displacement of that object.

18) A Car is moving to the West. It begins to slow down. The cars acceleration is what direction? 19) A ball is thrown straight up in the air and allowed to return to its original position. At maximum height, the velocity of an object at the top of its rise is __. 20) A ball is thrown straight up in the air and allowed to return to its original position. At maximum height, the acceleration of an object at the top of its rise is __. 21) In the 800m event at the Olympics, a runner must run 2 complete labs of a 400m track track. The total displacement of the runner is__. 22) An object that is at rest has a slope of _______ on a displacement / time graph.

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23) Which graph section(s) show a car losing speed? 24) Which graph section(s) show a car changing direction? 25) What is the displacement from 2- 3 seconds? 26) Which graph section(s) the greatest acceleration? 27) An object that travels through the air with no means of propulsion is a __. 28) A football is kicked at an angle of 30o and lands a distance of 50 yards away. Which of the following angles will also have a range of 50 yards? 29) At what angle will a projectile have a range of zero? 30) Which Velocity Vector will produce the greatest hang time (time in the air)? 31) Which Velocity Vector will produce the greatest horizontal velocity? 32) Which Velocity Vector will produce the greatest Range? 33) The air time of a projectile shot at a specific angle is determined by the ___component(s) of an objects velocity 34) The Maximum height of a projectile shot at a specific angle is determined by the ___component(s) of an objects velocity 35) The range of a projectile shot at a specific angle is determined by the ___component(s) of an objects velocity 36) When an object is moving in two dimensions, as the vertical component of velocity increases, the horizontal component of velocity _____.

37) The shape of the path an object makes as it travels through the air is __.

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38) When an object is moving in two dimensions, as the vertical component decreases, the Total speed of the projectile _____. 39) The ________component of a projectiles velocity change due to gravity. 40) The ________component of a projectiles velocity remains constant.

41) A burrito is dropped of the edge of a table and a quesadilla is pushed horizontally off the same table simultaneously. Which one hits the floor first?

42) The acceleration of an object varies _______ with its mass, if the force is constant. 43) The net force acting on an object moving at constant velocity is ___. 44) You are standing in a bus, facing forward, and you suddenly fall backward. You can imply from this that the bus 45) A 120 kg linebacker collides with an 80 kg quarterback, since the quarterback is knocked down, How do the forces on each player compare?

46) Two dogs are tugging on a toy. One dog pulls with a horizontal force of 14 N due north. The other is

pulling due east with a horizontal force of 14 N. What is the direction of the net external horizontal force

on the toy? 47) A sign of mass m hangs from two vertical cables. The net force on the sign is___. 48) While Driving a car, as you accelerate away from an intersection, the objects in you car (Change, books, french fries, Nachos Grande, etc.) appear to move backwards. What causes the objects to move backwards? 49) A sign of mass m hangs from two vertical cables. The tension on each cable is___. 50) You are standing in a bus, facing forward, and you suddenly fall to the side. You can imply from this that the bus 51) A boat with a weight of 1000 kg is floating in the ocean. What is the buoyant force acting on the boat? 52) If the net force on an object is zero, then: ___ (list all that apply). 53) A kitten of mass m is thrown straight up. At the top of its path, the magnitude of the net force acting on it is__. 54) The Acceleration of a mass is ____ related to force. 55) A Force of 20 N is exerted over an area of 10 m2. What is the pressure exerted over the area?

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56) A force exerted on an object by gravity is more commonly known as ____. 57) If a baseball hits a bat with a force of +3000N, with what force does the bat hit the ball? 58) A cable pulls an elevator upwards so the elevator is gaining speed. The Tension on the cable is____ 59) A sign of mass m hangs from two vertical cables. The weight of the sign is___. 60) A Rolling tire is an example of __ friction. 61) True or False: Static Friction is greater than Kinetic friction. 62) Two toy cars (m1=2kg, m2=10kg) roll down a 30o ramp. Which experiences a greater force of friction? 63) Two toy cars (m1=2kg, m2=10kg) roll down a 30o ramp. Which experiences a greater acceleration? 64) The force of friction you must exceed to start an object in motion is called_____ friction. 65) A skater sliding on his face across the pavement experiences what type of friction? 66) As the slope of a ramp increases, the sum of the Weight and the Normal Force exerted by the ramp___. 67) A skier slides up a hill with a coefficient of friction of μ = 0.20. The skier’s acceleration up the hill is ____to the acceleration down the hill. 68) True or False Static Friction can cause an object to accelerate. 69) As the slope of a ramp increases, the Normal Force exerted by the ramp___. 70) As the slope of a ramp increases, the Force of Friction between the ramp and any object___. 71) A skater rolls up a hill with zero friction. The skater’s acceleration up the hill is ____to the acceleration down the hill. 72) The net force acting on an sliding down a ramp at constant velocity is ___.

73) The resultant of the weight and the Normal Force exerted by the ramp is___. DRAW A FORCE DIAGRAM TO ANSWER THE FOLLOWIG QUESTIONS 74) A box sliding up a ramp with friction. 75) A box sliding down a ramp with friction. 76) A a box sitting at rest on a ramp. 77) A box being pushed up a ramp.

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78) A snowboarder slides down a 15o slope at a constant speed, the force of friction acting on the

snowboarder is:

79) A block of wood is being pulled along a table at a constant speed with a Force Sensor. Which point

on the graph below Represents the Force of Static Friction?

Use the Diagram below to answer the following Questions. 80) At What point is the force of gravity the smallest? 81) At what point is the planet moving the fastest? 82)If (tab = tdc), how does Area 1 compare to Area 2 the shaded areas compare?

83) The Acceleration of gravity on a planet is dependant upon___. (List all that apply). 84) A pilot executes a circular vertical loop. Just as the plane is at its lowest point, the Normal Force on him is 85) A pilot executes a circular vertical loop. Just as the plane is at its highest point, the Centripetal Force is equal to 86) The shape of a planets orbit around the sun is __ . 87) What makes and object fly to the outer most point of a circle when spinning around? 88) What provides the centripetal force for a satellite orbiting the Earth? 89) What provides the centripetal force for a Yo-Yo swing in a horizontal circle on the end of a string?

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90) A centripetal Force always pulls to the __ of a circular path. 91) As the radius of an object moving in a circular path is doubled, the centripetal acceleration of the object___. 92) The Force of Gravity between two objects is Fg. What is new gravitational force between the two objects if one of the masses is doubled and the distance between the objects is doubled? Use the diagrams below to answer the following questions. 93) At 12:00, what direction is the Velocity? 94) At point 3:00, what direction is the Force? 95) At point 6:00, what direction is the Centripetal Acceleration? 96) At point 9:00, what direction is the Tangential Acceleration?

A roller coaster cart follows the track as shown below.

97) At which point is the Normal Force on the passengers the least? 98) What direction is the net force at point Y? 99) As a box slides down a ramp with a height h and coefficient of friction µ a constant speed. The total work is____.

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100) Energy due to position is ____. 101) An acorn rolls up a hill. Compare the changes in kinetic energy K, to its changes in potential energy. 102) An object is moving at speed v. If you double the speed, the kinetic energy ___. 103) As the time to do work decreases, the amount of work done______.

104) As a box slides down a ramp with a height h and coefficient of friction µ a constant speed. Gravity does___work. 105) A box is pulled horizontally along the ground with a force that makes an angle of 30o with the vertical. The work done by the force is ___. 106) As you lift a bowling ball above your head, you do ____ work. 107) As the time to do work decreases, the power exerted ______. 108) __ is the transfer of energy through motion. 109) As you lift a bowling ball above your head, gravity does ____work. 110) The change in ____ is equal to the work done. 111) A force of 10 N is required to hold an object stationary 10 m above the ground. How much work is being done? 112) You apply the brakes of your car and skid a certain distance on a straight, level road. If you had been traveling 4 times as fast, what distance would the car have skidded, under the same conditions? 113) If the net work done on an object is positve, then the object's velocity___. 114) If you push twice as hard against a stationary brick wall, the amount of work you do 115) If the net work done on an object is negative, then the object's kinetic energy 116) ____________ is energy of an object resulting from motion

117) The quantity Fv is __. 118) __ is the rate at which work is done.

119) As a box slides down a ramp with a height h and coefficient of friction µ at a constant speed. Friction does___work. 120) As a box slides down a ramp with a height h and coefficient of friction µ at a constant speed. The Normal force does___work.

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121 What type of energy does the object have at each position in the diagrams below? (Choose all that apply)

+v v=0 +v +v v = 0 Part B Write the following answers on the back of your answer sheet. Show all work. 1) Phil drives 45.0 km to school in 30.0 minutes .

a) What is his average velocity in km/h? a) What is his average velocity in m/s?

2) A Burrito is thrown straight up in the air at 15.0 m/s. A) Sketch a displacement / time graph for this situation

B) What is its maximum height? C) How long will it be in the air? 4) Phil backs up then accelerates his car from rest to a speed of 25.0 m/s in 7.00 sec. (Draw Picture & List variables)

A) What is his average acceleration? B) What distance does he travel?

3) The Burrito lands on Phil’s windshield, blocking his vision, while he is driving at 25.0 m/s. He hits the side of a Taco Bell. He comes to rest in a distance of 0.750 m. What is his average acceleration? 5) A police officer is driving to scene at 15.0 m/s then accelerates to 45.0 m/s in 6.00 seconds.

A) What is his average acceleration? B) How far does he travel during those 5.00 seconds?

6) A 2nd Burrito is thrown upwards at 10.0 m/s off the roof which is 40.0 m tall. a) How long will the burrito be in the air? b) How fast will the burrito be moving when he hits the ground? 7) Phil’s car passes Main Street is moving 25.0 m/s.. A police officer starts Accelerating at 1.50 m/s2

from Main Street. When & Where does the cop catch the car? .

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8) Wile E. Coyote runs off of the edge of a 15.0 m high cliff with a horizontal velocity of 20.0 m/s.

--How far from the edge of the cliff does he land? 9) On a second trial to catch the speedy road runner, He uses ACME Brand roller blades to skate off another cliff with a horizontal velocity 18.0 m/s. He lands 30.0 m from the edge of the cliff.

A) How long is he in the air? B) How high is the cliff? C) What is his vertical component of velocity when he hits the ground? D) What is his horizontal velocity when he hits the ground?

10) After his previous two failures, Mr. Coyote invests in an ACME super sling shot that can propel him at a velocity of 30.0 m/s at an angle of 60o

A) How long is he in the air? B) What is his maximum height? C) How far will he land from the sling shot?

11) Wiley sets up a 45o ramp at the edge of a cliff so it is 10.0 m high. His electric scooter leaves the ramp at a speed of 8 m/s.

A) How long is he in the air? B) How far form the edge of the cliff does he land?

12) Wile E. Coyote uses an of Acme brand glider roller skates to fly North at 20 m/s, The wind blows at +15 m/s at and angle of 30o North of East. What is his resultant velocity? 13) Wiley’s Boat Crosses a river due east with a speed of 6.50 m/s relative to the water. The rivers current flows due north at 12.0 m/s. A) What is the resultant velocity of the boat? (Magnitude and direction) B) How long does it take to cross the river that is 200 m wide? 14) The Coyote shoots himself with the slingshot across a river 80m wide with an initial speed of 30 m/s. At what angle was his initial velocity? 15) The 950.0 kg #22 CAT Diesel Ford accelerates horizontally at a rate of 3.5 m/s2

A) What net force must be applied? B) What is the weight of the car? C) What net force will act on him while he is driving at constant speed of 190 mph?

16) A 75 kg Mechanic kicks a 45 kg tool box. The tool box accelerates from rest to a speed of 0.15 m/s in 0.12 seconds

A) Draw a Free-body Diagram of the toolbox on the ground as it is being kicked. B) What is the force on the toolbox? C) What is the force on the Mechanic’s foot?

17) A tree jumps in front of the 950 kg car moving at 25 m/s forcing the car to stop in a distance of 1.5 m. What is the magnitude of the force needed to stop the car in that distance?

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18) A 12500 kg submarine is in the ocean. An upward buoyant force of 1.40 x105N acts on the boat.

A) Draw a Free-body Diagram of the boat. B) What is the magnitude of the acceleration of the boat? C) What is the mass of the water displaced?

19) A chain lifts the 950 kg car upwards with an acceleration of 1.25 m/s2 A) Draw a Free-body Diagram of the car. (Label the Forces) B) What is the tension on the chain? 20) The 950 kg car is held in the air with two chains that make an angle of 45o to the vertical. A) Draw a Free-body Diagram of the car. (Label the Forces) B) What is the tension on each chain? 21) A 0.2 kg Pine Tree Air Freshener is hanging from a car mirror. The car begins to accelerate forward. The string that holds the Air Freshener makes an angle of 12o from the vertical. A) Draw a Free-body Diagram of the Freshener. B) What is the Net force on the Freshener? C) What is the acceleration of the Freshener? 22) The Coefficient of Kinetic Friction between a 25 kg tire is 0.25.

The Coefficient of Static Friction between a 25 kg tire is 0.40. A) What Force is required to start of the tire sliding? B) What Force is required to accelerate the tire at 2.0 m/s2?

23) A 150 kg box is pushed along the ground at a constant speed of 4.5 m/s with a Force 200N. A) Draw a Force Diagram of the tire. (Label the Forces)

B) Determine the Force of kinetic Friction between the box and the floor? C) Determine the Coefficient of Kinetic Friction between the tires and the floor?

24) An order of McDonalds Fries (m=0.70kg) are sitting on the passenger seat of a car moving at 15 m/s. The car comes to rest in time of 3.5 s. The fries remain on the seat and do not slide. A) Draw a force diagram of the Fries.

B) Is the force static or kinetic friction? C) Determine the coefficient of friction (µ) between the fries and the seat?

25) A 65 kg skier slides down a 25o snowy hill with a Coefficient of Friction (µ) of 0.15. A) Draw a force diagram to represent the skier sliding down the hill.

B) What is the Acceleration of the skier? 26) A box slides down a 37o slope at a constant velocity. A) Draw a force diagram to describe the situation

B) What is the Coefficient of Friction (µ)?

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27) A 50 kg snowboarder is being pulled up a 15o slope at a constant velocity. The Coefficient of Friction is (µ) of 0.20.

A) Draw a force diagram to describe the situation B) What is the Force of Friction Required to pull the snowboarder up the hill?

28) A 15 kg cabinet is pressed against the wall to keep it from falling. What is the minimum force perpendicular to the wall that you must exert on the cabinet to keep it stationary? The coefficient of friction for the two surfaces in contact is 0.42. Mass of Earth = 5.98*1024 kg Radius of Earth = 6.38*106 m 29) R2D2 (m=45 kg) is moving toward an escape pod with a speed of 15 m/s. R2D2 makes a turn with a radius of 12.0 m.

A) Draw a Force Diagram of R2D2 as he makes the turn B) What is his centripetal acceleration? C) What is the magnitude of the force applied to make him turn? D) What is the minimum coefficient of friction between R2D2 and the ground?

30) Luke Sky Walker and Princess Leah Swing (combine mass = 120 kg) from a cable that is 50.0 m long. At the lowest point they are moving 15.0 m/s. a) Draw a force diagram of the two as they swing. b) What is the tension on the cable bottom of the swing? 31) Chewbacca (m=95) is hiding in a centrifuge with a radius 8 m. The centrifuge spins at 15 rpm. Chewbacca is pressed against the side of the centrifuge without touching the ground. A) Draw a force diagram of Chewbacca against the wall of the Centrifuge. B) What is the minimum Coefficient of Friction between Chewbacca and the centrifuge? 32) What is the gravitational attraction of the 3.6*105 kg Millennium Falcon and a 4.7*107 kg Starship Cruiser if they are 1000 m apart? 33) The Millennium Falcon is hiding in an asteroid belt that is orbiting the sun at a distance of 3.7 times the earth’s average distance from the sun. How many years will it take the asteroid belt to orbit the sun? 34) The Empire has just built a 3rd version of the Death Star. It is orbiting the earth with a radius of 5.70*107 m. a) Draw of force diagram of the death star as it orbits the earth. b) What provides the force that causes the Death Star to orbit the Earth? c) What is the velocity of the Death Star as it orbits the Earth? 35) The Death Star has a mass of 5.00*1019kg, and a radius of 2.30*104 m. What is the acceleration of gravity on the surface of the death star? 36) The fuzzy dice hanging from the mirror of Red Leaders x-wing fighter make an angle of 30o from the vertical as it makes a curve with a radius of 50m. What is speed is Red Leader traveling?

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37) A person pulls a 30 kg sled with a 45 N force along a rope that makes and angle of 37o with the ground for a distance of 8.0 m. Friction Exerts a force of 15 N parallel to the ground. A) How much work does the person do? B) How much work is done by friction? C) What is the total work done? D) What is the velocity of the box after the 15 m? 38) A car with a mass of 750 kg accelerates from rest to 35 m/s in 5.5 seconds. a) How much kinetic energy does the car have at its final speed? b) How much work is done on the car? c) How much power does the car exert? 39) A force of 50 N is required to push a box at constant speed of 3.4 m/s. How much power is exerted? 40) The coyote lifts a 65 kg boulder to the top of a 25 m cliff. a) How much work did he do? b) How much potential energy does the rock have? c) What will be the rocks maximum velocity as it falls off the cliff? 41) A roller coaster starts from rest at a point W, 65 m above the bottom of a dip (See Fig. 6-2). Neglect friction, what will be the speed of the roller coaster at the top of the next slope (point Y), which is 25m above the bottom of the dip?

42) A 70-kg skier starts from rest from the top of a 45-m high which has a slope of 35o. What is the speed

of the slier on reaching the bottom of the slope? (Neglect friction.) 43) A spring-driven dart gun propels a 30-g dart. The spring constant is 200 N/m It is compressed a distance of 3.0 cm. What is the maximum velocity of the cart? 44) A 50 kg roller coaster car starts form rest at the top of a 70.0 m hill, It rolls to the ground then up a 15.0m hill. Friction does -6.0x102J of work during this time. What is the velocity of the car at his at the top of the 15m hill?