# Broken steps

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Chapter 4 First Half Multiple Choice Identify the choice that best completes the statement or answers the question. 1. A net force of 5.0 N moves a 2.0-kg object a distance of 3.0 m in 3.0 s. How much work is done on the object? a. 1.0 J c. 10. J b. 30. J d. 15 J 2. A 0.50-kg sphere at the top of an incline has a potential energy of 6.0 J relative to the base of the incline. Rolling halfway down the incline will cause the sphere’s potential energy to be: a. 12 J c. 3.0 J b. 6.0 J d. 0 J 3. Which mass has the greatest potential energy with respect to the floor? a. 2-kg mass 10 m above the floor c. 50-kg mass resting on the floor b. 6-kg mass 5 m above the floor d. 10-kg mass 2 m above the floor…show more content…
gain in kinetic energy. c. loss of mass. b. loss of height. d. gain in velocity. 26. An ideal pendulum is shown swinging in the diagram below. As the pendulum swings freely from A to B as shown in the diagram below: a. the gravitational force on the pendulum increases. b. the kinetic energy of the pendulum increases. c. the gravitational potential energy of the pendulum remains the same. d. the gravitational potential energy of the pendulum increases. In the diagram below, an ideal pendulum released from point A swings freely through point B. 27. Compared to the pendulum's kinetic energy at A, its potential energy at B is: a. twice as great. c. half as great. b. four times as great. d. the same. 28. As the pendulum swings from position A to position B as shown in the diagram below, what is the relationship of kinetic energy to potential energy? [Neglect friction.] a. The kinetic energy increase is more than the potential energy decrease. b. The kinetic energy decrease is equal to the potential energy increase. c. The kinetic energy increase is equal to the potential energy decrease. d. The kinetic energy decrease is more than the potential energy increase. 29. Which is a scalar quantity? a. displacement c. acceleration b. force d. distance 30. The diagram represents a block sliding along a frictionless surface between points A