Energy
Why are energy and work both measured in Joules?

 
 

What is potential energy?
 
 

What is the formula for gravitational potential energy?
 
 

How can a 5 kg object have the same grav. PE as a 100 kg object?  (Give your answer as an example.)
 
 
 

Practice problem: What is the gravitational PE of a 55 kg rock if you bring it to the top of a 75 m high cliff?
 
 

Rearrangement practice problem: How high will 4 kg ball be when it has 64 J of potential energy?
 
 

What is kinetic energy?
 
 

What is the formula for kinetic energy?
 
 

Practice problem: What is the kinetic energy of a 35 kg wagon being pushed at 30 m/s?
 
 
 
 

What is mechanical energy?
 
 

Give two examples of mechanical energy:
1)
2)

What is chemical energy?
 
 

Give four examples of chemical energy:
1)
2)
3)
4)

What is nuclear energy?
 
 

Give two examples of nuclear energy:
1)
2)

What is electromagnetic energy?
 
 

Give three examples of electromagnetic energy:
1)
2)
3)
 


Copyright Alexplorer. Some items taken from or adapted from other materials. This page is free for use in a classroom setting.
Back to the Physical Science index