Energy and Power Day 5

5. When you walk down the street, your muscles are supplying you with the __________ energy to move.
9. For the engine to do its work, all of the systems within it must be _____________.
11. Thermal energy is caused by the _________ of atoms, and it must be transmitted from atom to atom.
12. Like oil and coal, _______ gas is a byproduct of the natural decay process of plant and animal material over millions of years.
13. Work is defined as moving a(n)_________ over a distance.
14. _______ is defined as "the rate of energy transmitted or generated over a period of time."
15. Solar, nuclear, geothermal, wind-generated, and hydroelectric are all forms of ___________ energy.

1. The correct order of a combustion cycle of four distinct strokes is: 1. Intake, 2.________, 3. Power, 4. Exhaust
2. Early on, the three power sources that looked promising for the automobile were: ________, electricity, and internal combustion engine.
3. The __________ is the snug-fitting engine part that moves up and down within the cylinder because of the pressure of combustion.
4. One horsepower is the power required to move a 550-pound _____ 1 foot in 1 second.
6. __________ energy makes lighting and heating possible.
7. In an internal-combustion engine there are two types of valves: ______________ and combustion..
8. To measure the power of an engine, the unit of ______________ is used.
10. The chemical energy released from combustion forces the connecting rod down, creating ________ mechanical energy.