Energy Practice

Gravitational potential energy depends on

• height

• speed

• stretch

• chemical bonds

Energy due to motion is ____________ energy. 

• Potential 
• Energy
• Kinetic
• Friction

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

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

What are the units of energy?

• Watt

• Newton

• Joule

• Kelvin

What is the Ek of a football which has a mass of 0.8 kg and is kicked at a velocity of 10 m/s?

• 80 J

• 3.2 J

• 160 J

• 40 J

What kind of energy is in a moving skateboard?

• Potential
• Kinetic

Energy can not be created or destroyed, only converted from one form to another.

• true
• false

At which point is potential energy greatest?

• W
• X
• Y
• Z

A 0.11 kg glass is on a window ledge and has a potential energy of 1.62 J.

What is the height of the glass?

• 1.74 m

• 3.2 m

• 0.025 m

• 2.4 m

At which point is thermal energy greatest?

• W

• X

• Y

• Z