Review Science P4

Light allows us to ....

• A. hear

• B. talk

• C. feel

• D. see

These are the types of artificial light, except ...

• A. sun

• B. television

• C. lamp

• D. fireworks

The strength of a light is called ....

• A. sharpness

• B. night light

• C. dim light

• D. brightness

The primary colours of light are ....

• A. red, green, yellow

• B. blue, red, yellow

• C. red, green, blue

• D. blue, green, yellow

A ... is either a push or pull.

• A. light

• B. magnet

• C. movement

• D. force

When the surface of a thing is ..., there is less friction.

• A. smooth

• B. textured

• C. rough

• D. coarse

... is the amount of material in an object.

• A. Weight

• B. Mass

• C. Force

• D. Friction

If surface is rough, there is ... friction.

• A. less

• B. more

• C. no

• D. the same

We measure mass in ...

• A. grams

• B. meters

• C. centimeters

• D. kilometers

The ... an object is, the more force is pulling it down.

• A. less

• B. more

• C. heavier

• D. higher