Question 1

It makes an object moves or stops moving.

Accepted Answer

force

Answer

moving

Answer

pull

Answer

gravity

Question 2

If you add weight to an object, it will ________ to move it.

Accepted Answer

need more force

Answer

need only friction

Answer

be impossible

Answer

not need any force

Question 3

A ball travels farther on ice than on grass. What causes friction?

Accepted Answer

surfaces rubbing against each other

Answer

something traveling through the air

Answer

a surface being cut in half

Answer

an object standing still

Question 4

In which of these situations is there the most friction?

Accepted Answer

a mover drags a couch over a cracked sidewalk

Answer

a bowler rolls a round ball down a smooth, wooden lane

Answer

an ice skater glides across the ice on skates

Answer

a rower pulls a boat over the water to the shore

Question 5

Which of these is an effect of gravity?

Accepted Answer

a cup placed on a table won't float away

Answer

the brakes on a bike can make it stop

Answer

you can throw a ball or a rock up

Answer

liquid water can become a gas

Question 6

What is the boy doing?

Accepted Answer

pulling

Answer

pushing

Answer

force

Answer

jumping

Question 7

This box is full, what is he using to move it?

Accepted Answer

force

Answer

pulling

Answer

energy

Answer

time

Question 8

How is this boy moving the ball?

Accepted Answer

kicking

Answer

pushing

Answer

touching

Answer

sliding

Question 9

the speed or direction of an object is affected by :

Accepted Answer

force

Answer

speed

Answer

time

Answer

distance

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