Quiz 17 Sec. 6.2--6.8 Flashcards Preview

5th Science > Quiz 17 Sec. 6.2--6.8 > Flashcards

Flashcards in Quiz 17 Sec. 6.2--6.8 Deck (10):
1

Like charges _____; opposite charges attract.

repel

2

Early compasses were made from rocks called

lodestones

3

When one object gives some or all of its energy to another object, _____ of energy takes place.

transfer

4

The temperature at which a solid becomes a liquid is called the ____ point.

melting

5

The temperature at which a liquid becomes a gas is called the ____ point.

boiling

6

The temperature at which a liquid becomes a solid is called the ____ point.

freezing

7

Combustion is another word for

burning

8

All fuels need ____ in order to burn.

oxygen

9

The higher the ___ number of a gasoline, the better the "anti-knock" quality.

octane

10

The engine of the first airplane turned a ___ that pulled the airplane through the air.

propeller (prop)