Quiz about Forces and Motion Science

Question 1

Suppose you pull Nick, who is standing on a skateboard, using a rope at a constant acceleration. What happens when you double the mass and add a friend?

Accepted Answer

The amount of force required is doubled.

Answer

There will be no change to the required amount of force.

Answer

The amount of force required is slightly increased.

Answer

The amount of force required is four-times as great.

Question 2

At what point on a roller coaster does the train have the highest kinetic energy?

Accepted Answer

at the bottom of the first drop

Answer

at the top of the second hill

Answer

when the train first leaves the loading station

Answer

at the top of the first drop

Question 3

When a student runs and kicks a ball, they have applied an ___________ force to move the ball.

Accepted Answer

Unbalanced

Answer

Balanced

Answer

Magnetic

Answer

Spring

Question 4

Which is newtons 3rd law

Accepted Answer

For every reaction there is an equal and opposite reaction

Answer

for every thing there is reaction

Answer

for every reaction there is a unusual action

Answer

for every reaction there is an good action

Question 5

Which type of force(s) will cause a change in an object's motion?

Accepted Answer

unbalanced force

Answer

gravity

Answer

balanced forces

Answer

net force

Question 6

Newton's third law states that any action will have a(n) _______ and ______ reaction

Accepted Answer

equal and opposite

Answer

equal and same

Answer

equal and equal to

Question 7

The tendency of objects to resist a change in motion is called:

Accepted Answer

Inertia

Answer

Friction

Answer

Gravity

Answer

Velocity

Question 8

What is the unit of force in the International System of Units (SI)?

Accepted Answer

Newton

Answer

Joule

Answer

Watt

Answer

Pascal

Question 9

If a car accelerates from rest at a constant rate of $$3 \, ext{m/s}^2$$ , what will its velocity be after 4 seconds?

Accepted Answer

$$12 \, ext{m/s}$$

Answer

$$15 \, ext{m/s}$$

Answer

$$9 \, ext{m/s}$$

Answer

$$6 \, ext{m/s}$$

Question 10

Which of the following is an example of a contact force?

Accepted Answer

Frictional force

Answer

Gravitational force

Answer

Magnetic force

Answer

Electrostatic force

Question 11

A ball is thrown vertically upwards with a velocity of $$20 \, ext{m/s}$$ . What is the maximum height it will reach? (Assume $$g = 9.8 \, ext{m/s}^2$$ )

Accepted Answer

$$20.4 \, ext{m}$$

Answer

$$30.6 \, ext{m}$$

Answer

$$40.8 \, ext{m}$$

Answer

$$10.2 \, ext{m}$$

Question 12

What is the net force acting on an object moving at a constant velocity?

Accepted Answer

Zero

Answer

Equal to the gravitational force

Answer

Equal to the applied force

Answer

Equal to the frictional force

Question 13

Which of the following statements is true about inertia?

Accepted Answer

It is the tendency of objects to resist changes in motion

Answer

It is the force that keeps objects moving

Answer

It is the energy stored in an object

Answer

It is the speed of an object in motion

Question 14

A 5 kg object is subjected to a force of $$10 \, ext{N}$$ . What is its acceleration?

Accepted Answer

$$2 \, ext{m/s}^2$$

Answer

$$0.5 \, ext{m/s}^2$$

Answer

$$5 \, ext{m/s}^2$$

Answer

$$10 \, ext{m/s}^2$$

Question 15

Which of the following is an example of Newton's third law of motion?

Accepted Answer

A rocket launching into space

Answer

A book resting on a table

Answer

A car accelerating on a highway

Answer

A ball rolling down a hill

Question 16

What happens to the gravitational force between two objects if the distance between them is doubled?

Accepted Answer

It becomes one-fourth as strong

Answer

It becomes four times as strong

Answer

It becomes half as strong

Answer

It remains the same

Forces and Motion Science

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