3rd Periodical Test Reviewer in Science 2

A man is climbing a mango tree. What force is the man exerting?

• push

• pull

• energy

• motion

Why is it easier to go down the slope of a hill than up the slope?

• gravity pulls you up

• gravity pulls you down

• frictional force is acting

• energy is acting

How important is frictional force in running?

• friction gives you a better choice

• friction gives you a better way to use your energy.

• friction will not be use in a better way

• gravity will be acting

Why does it takes less effort to throw a marble than a basketball?

• a marble has a less mass

• a basketball has less mass

• a marble has heavier mass

• both has less mass

Why does an apple fruit falls down the tree to the surface of the ground?

• because of friction

• because of gravity

• because of electricity

• because of water

A kite is moved by?

• water

• wind

• gravity

• friction

A ________ attracts iron objects.

• gravity

• water

• magnet

• friction

Susan will make use a __________to make something move.

• gravity

• water

• magnet

• force

When a dog moves, it is in________.

• motion

• water

• magnet

• friction

A ball rolls down a hill because of _________________ .

• gravity

• water

• Magnet

• wind