Science 2 Review Ngan Ha

Which equipment is used to measure force?

• scale

• stopwatch

• thermometer

• newton meter

A force can make the objects ........................

• absorb

• sleep

• breathe

• slow down or speed up

Which is NOT a force?

• gravity

• friction

• pull or push

• stomach

Which force pull the apples down?

• gravity

• friction

• twist

• air resistance

Which force make the parachute slow down?

• gravity

• friction

• pull

• air resistance

Which force is the red arrow?

• gravity

• friction

• push

• water resistance

The friction between the sidewalk and the rubber soles of the shoes is ...............................

• not useful

• useful

Which surface causes more friction?

• sandpaper

• ice

The friction between the floor and the box is ...............................

• not useful

• useful

The magnet has .................... poles.

• 4

• 2

• 3