Energy and Work

2. The Imperial (English) unit for energy is the __.
4. The formula for power is the work done per unit of __.
6. The SI unit for power is the __, which is defined as joules per second; the Imperial (English) unit is foot pounds per second.
7. The SI unit for energy is the __.
8. The conservation of energy is also often called the First Law of __.
9. __ energy is energy of an object in motion.
10. While work can use the same units as energy, the SI unit more often used is the __, which derives from the formula for work (force x displacement).
11. The measure of how quickly a machine (or a person, object, animal, etc.) does work is a measure of __.

1. The __ _ __ states that the total energy in a system can be neither created nor destroyed, but simply changes form.
2. Energy seemingly lost by a moving object is often transferred into heat energy through __. (Hint: Rub your hands together - what causes the heat?)
3. __ energy is energy stored in an object and could be chemical or gravitational (for instance).
5. __ is the ability of an object to do work.
12. __ is defined as force exerted in the direction of motion times the displacement of the object.