GP 1 Written Works 5

At what point in its motion is the kinetic energy of the pendulum bob maximum?

• A

• B

• C

• D

At what point in its motion is the kinetic energy of the pendulum bob minimum?

• B

• C

• D

• E

At what point in its motion is the potential energy of the pendulum bob minimum?

• A

• B

• C

• D

At what point in its motion is the potential energy of the pendulum bob maximum?

• B

• C

• D

• E

In a marathon, the winner and the runner-up have the same mass. Compared with the runner-up, the winner has more

• energy

• force

• power

• work

Which event does NOT describe potential energy being changed into kinetic energy?

• A box sliding down a ramp.

• A mango falling from a crate.

• A pen spring being compressed.

• A stretched rubber band got loosened.

Which event illustrates the direct transformation of potential to kinetic energy?

• A basketball player catches a flying ball.

• A Kalesa moves from rest.

• Kathy’s arrow is released from its bow.

• The spring mechanism of a toy is rotated until it locked.

A runner jumps over a hurdle. Neglecting friction, the potential energy of the runner at the highest point compared to his kinetic energy at the lowest point is

• lesser

• equal

• greater

• not related

The potential energy of a 4-kg object on top of a hill is 72 J. What is its velocity in m/s just before it hits the ground?

• 36

• 18

• 6

• 3

In order to do work, energy is

• transferred or converted

• used up

• lost

• lost or transferred