ZIi„51,loy.try,ZeZ--k6,71,7141FORM AV1. A 2 kg ball and a 4 kg ball move to the right at the same constantspeed. Select the statement below that describes how their kineticenergies compare.A. The more massive ball has twice the kinetic energy of the lessmassive ball.B. The more massive ball has half the kinetic energy of the less massiveball.C. The more massive ball has four times more kinetic energy than theless massive ball.D. The more massive ball has four times less kinetic energy than theless massive ball.j2. A red truck and a blue truck travel at the same speed along a straightflat road. The red truck is 3 times more massive than the blue truck.Compare their kinetic energy.A. The red truck and the blue truck have the same kinetic energy.B. The blue truck's kinetic energy is triple the red truck'skinetic energy.C The red truck's kinetic energy is triple the blue truck'skinetic energy.D The red truck's kinetic energy is nine times greater than theblue truck's kinetic energy.radt,-(,76-377K II 9-
Ev 7 15,N./3. Calculate the kinetic energy when mass is 5 kg and velocity is 8 m/s.A. 0.625JA4.B. 40JEFLC. 20JD. 160Jk. ATwo identical springs are used in an experiment. Spring A iscompressed 3 cm. If 50 Joules of energy is stored in Spring A and200 Joules of energy is stored in Spring B, how far is Spring Bcompressed?c. 12 cmd. 20 cma. 3 cmb. 6 cm5. A 40 kg cart increases velocity from 3 m/s to 6 m/s. Select thestatement that describes the effect on kinetic energy.v3AEtc, 3Ek of the cart will remain constant since the mass stays the same.Ek of the cart will increase by 3 joules.Ek of the cart will quadruple.Ek of the cart will triple.6. How can you decrease an object's kinetic energy?A. Increase the object's velocity.B. Decrease the object's velocity.C. Increase the height of the object's position.D. Decrease the height of the object's position. Az
7. Ball 'Y' moves to the right at twice the velocity of ball 'X'. If the ballsare the same mass, select the statement below that describes howtheir kinetic energies compare.V2vA. Ball 'Y' has twice the kinetic energy of Ball 'X'.B. Ball 'Y' has half the kinetic energy of Ball 'X'.C. Ball 'Y' has four times more kinetic energy of Ball 'X'.D. Ball 'Y' has 1/4 the kinetic energy of Ball 'X'.8. A 700 kg sports car speeds down the road at 20 m/s. What is thekinetic energy of the sports car?C. 140,000JD. 14,000JA, 280,000JB. 28,000J9. A pair of skydivers jump from an airplane when the plane achieves analtitude of 10,000 meters. If Earl's gravitational potential energy isgreater than Javon's immediately after they jump, select thestatement that must be true.tiFigau 11)--A w:JhA. Earl and Javon have the same mass so their terminal velocities will bethe same.B. Earl has more mass than Javon.C. Earl has less mass than Javon.D. Earl falls faster than Javon.
t 0tt210.The path of a bouncing ball is shown above.,liThe mass of theball is 0.3 kg. If the initial height (h0) of the ball is 5 meters, select themost likely values for the gravitational potential energy of the ball ath1 and h2.A. At h1, Eg 15 J At h2, Eg 10 JB. At h1, Eg 150 J At h2, Eg 100 JC. At hi, Eg 10 J At h2, Eg 5 JD. At h1, Eg 100 At h2, Eg 50Jolgeo 13t,t,krg,Cc.-- Yn3Y)- 12-CO11.The gravitational potential energy of a red ball is greater thanthe gravitational potential energy of a blue ball. If the red and blueballs have the same mass, select the statement(s) that could be true:I.The red and blue balls are located in the same gravitationalfields and are located at different heights above the ground.The red and blue balls are located in different gravitationalfields and are located at the same height above the ground.III. The red and blue balls are located in the same gravitational fieldsand are located at the same height above the ground.r"--A. I onlyB. IIonly C. Ill onlyD. I and II only E.IIand III only
rn ch1 meterfr12, A ball rests at the top of a 1 meter tall ramp. The 2 kg ball begins rollingdown the ramp. If the ball and ramp are a closed sysfem, what is thepotential energy of the system?A. 1.96JB. 19.6JC. 196JD. 1960J13, How can you increase an object's gravitational potential energy?A, Increase the object's velocity.B. Decrease the object's velocity.C.1hC. Increase the height of the object's position.D. Decrease the height of the object's position.14. Calculate the potential energy of a roller coas r when mass is 120 kgand height is 25 m.A. 3000JB. 37,500JC. 4.8 JD. 29,400 JC6- - rn 11J)15. Calculate the potential energy when mass is 12 kg, gravity is 9.8 m/s/s,and height is 2 m.C. 235.2JD. 58.8JA. 470.4JB. 24J
h16. When an object is not moving, the energy stored due to its height is:A. Elastic energyA. Dynamic energyB. Kinetic energyC. Potential energyTOP k- BOTTOMhVtvo/17. The picture above shows a waterfall. Choose the pie chart that bestrepresents the kinetic and gravitational potential energy of a water dropletfalling in mid-air where the arrow is pointing. Assume no energy isdissipated in the waterfall. Circle the letter below the correct answer.
18. Electrical energy is the movement of electrons. For example, electronsmove through the wires of your headphones so you can listen to music.What type of energy does this represent?A. Kinetic energyA. Potential energyB. Chemical energyC. Thermal energy19. When an object is moving, the energy due to its motion is:A. Elastic energyB. Dynamic energyC. Kinetic energyD. Potential energy
Ec-417-Lv 5m/sh 3mh 5m m20. A bowler releases a bowling ball at 5 m/s. the ball speeds up as it rollsdown the ramp to the pins. Select the correct statement about the energiespresent at A, B, and C.A.A: Ek 0 and Eg 0B: Ek 0 and Eg 0C: Ek 0 and Eg 0B.A: Ek 0 and Eg 0B: Ek 0 and Eg 0C: Ek 0 and Eg 0C.A: Ek 0 and Eg 0B: Ek 0 and Eg 0C: Ek 0 and Eg 0D.A: Ek 0 and Eg 0B: Ek 0 and Eg 0C: Ek 0 and Eg 0
hAho :nr1-440AIY 0000--- 0Bqcv (1lV21. The pendulum swings from A to B to C to D. Select the statement thatis truea. The gravitational potential energy and kinetic energy is maximum at D.b. The gravitational potential energy and kinetic energy is maximum at C.c. At A, the gravitational potential energy is maximum and kinetic energy isminimum.d. At A, the gravitational potential energy and kinetic energy is minimum.
/1133 01A VA-30mV, C.22. At position A, the 500 kg roller coaster car is at rest. As the coastermoves from A to B, 5000 Joules of energy is diuipated. Comparingposition A to position B, which statement below concerning the energytransformation would be true?A. The car at position B has 150,000 J of gravitational energy and 5000 Jof kinetic energy.B. The car at position B has 150,000 J of kinetic energy and 5000 J ofgravitational potential energy.C. The car at position B has 145,000 J of gravitational energy and 0 J ofkinetic energy.D. The car at position B has 145,000 J of kinetic energy and 0 Jgravitational energy.K cjz : ) ;72-53MC.03 \ S kV/0-e23. A 2 kg green cart and a 2 kg yellow cart travel along a straight flattrack. The kinetic energy of green cart is 25 joules. If the yellow cart ismoving at twice the speed of the green cart, how much kinetic energy doesthe yellow cart have?C. 100JD. 125 JA. 25J B. 50J
C24. A moving 10 kg ball has a kinetic energy of 45 joules. After 2seconds, the kinetic energy of the 10 kg ball is 90 joules. Select—the statement that describes the motion of the ball.A. The ball has maintained a constant energy.B. The ball has accelerated.C. The ball has maintained a constant velocity.D. The ball has decreased its velocity.Top hyi4 x25.— BOTTOM \i/V1/4)((/)The picture above shows a waterfall. Choose the pie chart that bestrepresents the kinetic and gravitational potential energy of a waterdroplet falling in mid-air where the arrow is pointing. Assume noenergy is dissipated in the waterfall. Circle the letter below thecorrect answer.
26. The total potential and kinetic energy of an object is called:a. Mechanical energyb. thermal energyc. chemical energyd. electrical energy)--27. Two objects with different masses are at rest on the same shelf.)Which object contains more energy?kiktha. The object with greater mass has more energy.b. The object will less mass has more energy.c. Both object have the same energy.d. Neither object has energy since they are at rest.28. An object has18 joules of potential energy and 30 joules ofkinetic energy. How much mechanical energy would it contain?a. 12 Joulesb. 18 Joulesc. 30 Joulesd. 48 Joules29. A spring is compressed 50 cm. If the spring coefficient is 10N/m, how much energy is stored in it?a. 1.00 J)(f4b. 1.25Jc. 2.50Jd. 5.00 J30. The Law of Conservation of Energy states that when one formof energy is converted to another form,a. Energy is destroyed.b. No energy is destroyed.c. Energy is created.d. Some amount of energy cannot be accounted for.
—o\31. Where is pote-rtial energy greatest?a. Ab. Dc. Fd. GEEcL A 6)31ATBTwo springs are used in an experiment. The springs have32.different spring coefficients. Both springs are compressed thesame distance. If 6 Joules of energy is stored in Spring—A and 24J—oules of-energy is stored in Spring B, compare their springcoefficients.a. A's spring coefficient is four times larger than B's springcoefficient.b. A's spring coefficient is two times larger than B's springcoefficient.c. B's spring coefficient is four times larger than A's springcoefficient.d. B's spring coefficient is two times larger than A's springcoefficient.
1Y\ V-2--33. Calculate the kinetic energy of a roller coaster when the velocityis 0.2 m/s and mass is 1500 kg.A.30JB. 225,000JC. 2940JD. 300J34.Energy is:a. the capacity to transformb. the ability to do work.c. Working on transformations.d. Mechanical.35. Energy is measured in:a. Newtonsb. Meters per secondc. Joulesd. Newtons/meter