Transportation Power

4. motion, What term describes circular motion?
6. combustion engine An engine with an outside power source is called a(n) __.
7. What fuel does a fuel cell use?
9. The term "combustion" means __.
11. turbine engine, A big oceangoing ship is most likely powered by a huge engine known as a(n) __.
12. air, In a diesel engine the diesel fuel is ignited by __.
14. In a gasoline engine the gasoline is ignited by a __.
17. In a gasoline engine, the plug that snugly slides in and out of a cylinder is the __.
19. What part in a car engine changes reciprocating motion to rotary motion?

1. Most car engines operate on a(n) __ cycle.
2. Small engines for devices such as lawn mowers operate on a(n) __ cycle.
3. engine, What type of engine used in some buses and trucks is similar to a gasoline engine?
5. A battery-powered car cannot travel far without __.
8. Propellant is the explosive mixture of oxygen and fuel in a(n) __.
9. In a steam engine, the chamber in which water is heated is called the __.
10. motion, What term describes the back-and-forth or up-and-down motion?
13. A spinning disk that is similar to a pinwheel is a(n) __.
14. Which type of fuel stores most easily?
15. car, What kind of car has characteristics of both battery-powered cars and cars with gasoline engines?
16. combustion engine, An engine with an inside power source is called a(n) __.
18. The force that pushes a jet engine forward is __.
20. engine What type of engine was invented in England in the 1700s?