ENERGY: PE and KE

What is the unit of measure for work?

• Newton (N)

• Joule (J)

• Kelvin (K)

• No answer choice is correct

The acceleration of gravity on Earth is...

• 9.8 m/s

• 9.8 m/s²

• 8.9 m/s²

• 9.0 m/s²

A bicycle has a mass of 10 kg and is moving at a velocity of 15 m/s. What is the bicycle's kinetic energy?

• 1125 J

• 150 J

• 1.5 J

• 750 J

What is the gravitational potential energy (GPE) of a ceiling fan with a mass of 10 kg that is suspended 4 m above the floor?

• 40 J

• 40 N

• 2.5 J

• 392 J

What is the kinetic energy of a bowling ball that has a mass of 47 kg and is traveling at a velocity of 22 m/s?

• 2.14 J

• 11374 J

• 10133 J

• 1034 J

Kinetic Energy is defined as

• Energy stored due to its location
• Energy of motion
• Energy stored in the bonds of molecules
• Heat energy

You drop a 5 kg ball from a height of 2 m. Just before it reaches the ground, what type of energy does it have?

• Potential Energy
• Kinetic Energy
• Nuclear Energy
• Chemical Energy

A 5 kg ball is lifted 12 m above the ground. It's gravitational potential energy is

• 60 J
• 600 J
• 17 J
• 2.4 J

The law of conservation states that

• every action has an equal and opposite reaction
• all matter has thermal energy
• energy cannot be created or destroyed, only changes form
• heat moves from an object of higher temperature to an object of lower temperature

The ability to do work is called

• energy
• thermal
• kinetic
• potential