Quiz about Forces and Motion

Question 1

A _____ is a pull or a push.

Accepted Answer

force

Answer

friction

Answer

gravity

Answer

speed

Question 2

A _____ moves an object closer to you.

Accepted Answer

pull

Answer

push

Answer

friction

Answer

cat

Question 3

How are a push and a pull alike?

Accepted Answer

They are both forces.

Answer

You can hear them both.

Answer

They are both names of cats.

Answer

You can do them both at the same time.

Question 4

Another way that force can cause the change in an object's motion is to...

Accepted Answer

change its direction.

Answer

change its color.

Answer

change its pitch.

Answer

change its spots.

Question 5

_____ is the force that slows and stops motion between touching objects.

Accepted Answer

Friction

Answer

Gravity

Answer

Pull

Answer

Push

Question 6

Which has the least friction?

Accepted Answer

snowboard on a snowy hill

Answer

running on the playground

Answer

sandpaper on wood

Answer

a racer on a track

Question 7

Why is there less friction between two ice cubes touching than between sandpaper on wood?

Accepted Answer

They have smooth surfaces.

Answer

They have rough surfaces.

Answer

They have loud surfaces.

Answer

They have bright surfaces.

Question 8

What is one way to reduce friction?

Accepted Answer

Put a slippery substance between the surfaces.

Answer

Put sandpaper between the surfaces that touch.

Answer

Push the surfaces closer together.

Answer

Shine a light on the surfaces.

Question 9

In which of the following activity is friction useful?

Accepted Answer

running around a track

Answer

sliding down a snowy hill on a sled

Answer

ice skating

Answer

roller blading

Question 10

In the image, what force is acting on arrow A?

Accepted Answer

gravity

Answer

friction

Answer

push

Answer

Jedi force

Question 11

A non-contact force means there is NO touching needed to make the force happen between the two objects.  Choose the non-contact forces.

Accepted Answer

using a magnet, dropping a ball, two balloons repelling

Answer

using a magnet, electricity, pulling a sled

Answer

hitting a baseball, using a magnet, pushing your friend

Question 12

An unbalanced force can make all of these things happen except...

Accepted Answer

an object just sits there

Answer

a moving object changes direction

Answer

a moving object speeds up

Answer

a moving object stops

Question 13

Balanced forces can cause

Accepted Answer

an object to stay still or move at a constant speed and direction

Answer

an object to speed up or slow down

Question 14

Who is winning this race?

Accepted Answer

A

Answer

B

Question 15

What speed is the person with the red line going?

Accepted Answer

10 km per hour

Answer

20 km per hour

Answer

50 km per hour

Answer

30 km per hour

Question 16

When was the ostrich going at a constant speed?

Accepted Answer

Between 45 and 60 min.

Answer

Between 0 and 30 min.

Answer

Between 30 and 45 min.

Question 17

this force is ___________ and there will be

Accepted Answer

balanced, no movement

Answer

unbalanced, no movement

Answer

balanced, movement to the left

Question 18

If all four forces are balanced, the plane will

Accepted Answer

fly at a constant speed and direction

Answer

plummet to the ground

Answer

fly faster and faster

Answer

fly slower and slower

Question 19

If two spheres of different masses, but the same size are dropped at the same time

Accepted Answer

they will hit the floor at the same time

Answer

the larger mass will hit first

Answer

the smaller mass will hit first

Question 20

The more massive an object is...

Accepted Answer

all of the above.

Answer

the harder it will be to get moving.

Answer

The harder it will be to stop.

Answer

the harder it will be to speed up.

Question 21

To measure speed, you need to know...

Accepted Answer

distance covered and time it took

Answer

distance covered and speed

Answer

acceleration and distance

Answer

direction and time

Question 22

The term for when an object speeds up, slows down, or changes direction

Accepted Answer

Acceleration

Answer

Speed

Answer

Velocity

Answer

Newtons

Question 23

Which is true from Newton's Third law of motion?

Accepted Answer

For every action force there is an equivalent reaction force in the opposite direction.

Answer

For every action force there is a smaller reaction force in the opposite direction.

Answer

Both 1 and 2

Answer

None of the above

Question 24

When forces on an object are balanced, what is the force?

Accepted Answer

Zero

Answer

Five

Answer

Ten

Answer

Six

Question 25

How can you increase the acceleration of an object?

Accepted Answer

decrease its mass

Answer

increase its friction

Answer

increase its mass

Answer

decrease the force applied to it

Question 26

What does this graph represent?

Accepted Answer

Constant Speed

Answer

Acceleration

Answer

Not moving

Question 27

What is the net force

Accepted Answer

0 N

Answer

10 N

Answer

25 N

Answer

1 N

Question 28

It takes more force to accelerate the iron man on the left than the iron man on the right because the iron man on the left has more mass. This best describes

Accepted Answer

Newton's second law, the law of acceleration

Answer

Newton's first law, the law of inertia

Answer

Newton's third law, the law of action reaction

Answer

The law of universal gravitation

Question 29

What is the net force?

Accepted Answer

400 N Down

Answer

400 N Up

Answer

- 400 N Down

Answer

800 N Down

Question 30

Which runner won the race?

Accepted Answer

A

Answer

B

Answer

C

Forces and Motion

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