Physical Science Chapter 4

3 Written Questions

1. energy stored when an object is compressed or stretched.
2. SI unit of energy.
3. states that energy can never be created or destroyed.

3 Multiple Choice Questions

1. stored energy an object has due to its position.
   1. mechanical energy
   2. kinetic energy
   3. potential energy
   4. elastic potential energy
2. energy a moving object has because of its motion; depends on the mass and speed of the object.
   1. joule
   2. kinetic energy
   3. potential energy
   4. mechanical energy
3. sum of the potential energy and kinetic energy in a system.
   1. kinetic energy
   2. elastic potential energy
   3. potential energy
   4. mechanical energy

2 True/False Questions

1. chemical potential energy → energy stored in chemical bonds.

   True        False

2. gravitational potential energy → energy stored in chemical bonds.

   True        False