Quiz about Exploring Newton's Laws of Motion

Question 1

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

Accepted Answer

Newton

Answer

Joule

Answer

Watt

Answer

Pascal

Question 2

A push or pull that can cause an object to move, stop, or change direction is called a:

Accepted Answer

Force

Answer

Friction

Answer

Mass

Answer

Energy

Question 3

Which of the following best describes a scientific law?

Accepted Answer

A statement based on repeated experimental observations

Answer

A guess about how things work

Answer

An opinion of a scientist

Answer

A random idea

Question 4

What is the net force if two people push a box in the same direction, one with $$5\,N$$ and the other with $$3\,N$$ ?

Accepted Answer

$$8\,N$$

Answer

$$2\,N$$

Answer

$$15\,N$$

Answer

$$0\,N$$

Question 5

Which of the following is an example of friction?

Accepted Answer

A ball rolling to a stop on the ground

Answer

A magnet attracting a nail

Answer

A light bulb glowing

Answer

Water boiling

Question 6

A force that does not cause a change in motion because it is balanced by another force is called:

Accepted Answer

Balanced force

Answer

Unbalanced force

Answer

Net force

Answer

Friction

Question 7

What is the name for the total force acting on an object?

Accepted Answer

Net force

Answer

Friction

Answer

Balanced force

Answer

Gravity

Question 8

What is the direction of the force that friction always acts in?

Accepted Answer

Opposite to the direction of motion

Answer

The same direction as motion

Answer

Upward

Answer

Downward

Question 9

While electric current is flowing through a wire, what surrounds the wire?

Accepted Answer

a magnetic field

Answer

a glowing light

Answer

neutrons

Answer

protons

Question 10

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

Accepted Answer

Two people pushing a box in opposite directions with equal force

Answer

A car accelerating

Answer

A ball falling to the ground

Answer

A person jumping

Question 11

If you slide a hockey puck on perfectly smooth ice, it will eventually slow down and stop. Which force is responsible for this?

Accepted Answer

Friction

Answer

Gravity

Answer

Magnetism

Answer

Air resistance

Question 12

A car is moving at a constant speed. Suddenly, the driver applies the brakes and the car stops. Which force caused the car to stop?

Accepted Answer

Friction

Answer

Gravity

Answer

Magnetism

Answer

Balanced force

Question 13

If you double the force applied to an object, what happens to its acceleration (assuming mass stays the same)?

Accepted Answer

It doubles

Answer

It halves

Answer

It stays the same

Answer

It becomes zero

Question 14

If a glass plate is placed over a magnet and iron filings are sprinkled over the glass, a pattern will be visible. What does this pattern indicate?

Accepted Answer

The magnetic field

Answer

The electrostatic field

Answer

The piezoelectric effect

Answer

The chemical reaction of the magnet and the filings

Question 15

Two ice skaters, Skater A and Skater B, push off against each other on an ice rink. Skater A has a mass of $$50\,kg$$ and Skater B has a mass of $$100\,kg$$ . If both push with equal force, which skater will move away faster and why?

Accepted Answer

Skater A, because less mass means more acceleration

Answer

Skater B, because more mass means more acceleration

Answer

Both move at the same speed

Answer

Neither will move

Question 16

The girl on the sled will remain in motion unless

Accepted Answer

she is stopped by an outside force.

Answer

her motion is changed by magnetic forces.

Answer

she accelerates at a constant speed.

Answer

the force of friction forcer her to move faster.

Question 17

Which law describes this picture?

Accepted Answer

Newton's First Law

Answer

Newton's Second Law

Answer

Newton's Third Law

Question 18

When a horse stops suddenly, the rider on its back continues to move forward onto the ground. Which law is this?

Accepted Answer

Newton's 1st Law of Motion

Answer

Newton's 2nd Law of Motion

Answer

Newton's 3rd Law of Motion

Exploring Newton's Laws of Motion

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