PRIVATE IPA - Sesi 264

The faster an object moves, the ________ kinetic energy it has. 

• more
• less
• none of the above
• all of the above 

Gravitational potential energy depends on the ________ and ________ of the object. 

• Height and mass
• Friction and movement
• Mass and Movement
• Height and Friction 

At which point is potential energy greatest?

• W
• X
• Y
• Z

A 0.40 kilogram bird is flying at a constant speed of 8.0 m/s. What is the bird's kinetic energy ?

• 3.2 J
• 4.2 J
• 2.0 J
• 12.8 J

2. The diagram to the right represents a diver’s motion from the top of a high diving board into a pool of water. At what point does the diver have the greatest kinetic energy and the least potential energy?

• 1
• 2
• 3
• 4

A 60.0 kg person walks from the ground to the roof of a 74.8 m tall building. How much gravitational potential energy does she have at the top of the building?

• 43982.4 J
• 63982.3 J
• 43962.4 J
• 83942.4 J

What is the unit of measurement for kinetic energy

• Newton
• Joule
• Watt
• Kilogram

Which of the following is an exmaple of a change of kinetic energy into gravitational potential energy?

• a person parachuting out of a plane
• a car racing around an oval track
• a person skiing down a hill
• a person walking up a hill

What would have the greatest kinetic energy?

• A car driving down a hill.
• A person running down a hill. 
• A ball rolling down a hill. 
• leaves rolling down a hill 

Based on the diagram of a roller coaster car on a roller coaster track, what statement is true?

• The car at point A has more kinetic energy than the car at point C

• The car at point C has less kinetic energy than the car at point B.

• The car at point C has more kinetic energy than the car at point B.

• The car at point D has less potential energy than the car at point B.