Science (Review) grade 3

Which materials could increase the friction between objects? select all that apply

• sandpaper

• oil

• rough stones

• water

Which force slowed the golf ball as it rolled?

• gravity

• friction

• the force from the golf club

• the force from the golfer

Which of the following are ways to measure movement? Select all that apply.

• distance

• prediction

• speed

• time

A force that happens when an object rubs another object is called........

• friction

• sandpaper

• rough stones

Cooper designs and builds a toy car and is about to test the speed of the car by pushing it down a ramp. What tools should he use to measure the speed of the toy car?

• a ruler and a scale

• a scale and a stopwatch

• a stopwatch and a ruler

• a measuring cup and scale

Balanced forces cancel each other out when acting on an object.

• True

• false

Hitting a nail with a hammer is a .................

• pull

• strike

• push

• crash

A force is ........................

• pushing

• a pull between two objects

• the amount of gravity between two objects

• a push and a pull

An object will not move unless a ................. acts on it.

• force

• friction

• crash

• strike

............................is necessary to move a car compared with a bicycle.

• more force

• less force

• the same force

• no force