Quiz about Motion Forces

Question 1

The statement "to every action there is an equal and opposite reaction" is _____.

Accepted Answer

Newton's Third Law of Motion

Answer

Newton's First Law of Motion

Answer

Newton's Second Law of Motion

Answer

Law of Conservation of Momentum

Question 2

According to Newton's Second Law of Motion, _____

Accepted Answer

F = ma

Answer

F = mv

Answer

F = pv

Answer

F = pa

Question 3

A force is a push or pull that one body exerts on another body.

Accepted Answer

True

Answer

False

Question 4

An object accelerates if it speeds up, slows down, or changes directions.

Accepted Answer

True

Answer

False

Question 5

If Kim won a 300 meter race in 40 seconds, her average speed was _____.

Accepted Answer

7.5 m/s

Answer

15 m/s

Answer

25 m/s

Answer

8.5 m/s

Question 6

_____ is the rate of change of speed and/or direction.

Accepted Answer

Acceleration

Answer

Gravity

Answer

Net force

Answer

Inertia

Question 7

Forces that are equal in size and opposite in direction are _____.

Accepted Answer

Balanced forces

Answer

Net forces

Answer

Frictional forces

Answer

Gravitational forces

Question 8

Which object has the greatest inertia?

Accepted Answer

Bowling ball

Answer

Ping-pong ball

Answer

Toothpick

Answer

Pencil

Question 9

When an object moves in a circular path, it accelerates toward the center of the circle as a result of _____.

Accepted Answer

Centripetal force

Answer

Terminal velocity

Answer

Momentum

Answer

Friction

Question 10

Momentum is expressed in units of _____.

Accepted Answer

kg*m/s

Answer

kg*m

Answer

N

Answer

m/s2

Question 11

When two objects collide, the momentum of the pair after the collision is explained by _____

Accepted Answer

Law of Conservation of Momentum

Answer

Newton's First Law of Motion

Answer

Newton's Second Law of Motion

Answer

Newton's Third Law of Motion

Question 12

A feather will fall through the air more slowly than a brick because of _____.

Accepted Answer

Air resistance

Answer

Gravity

Answer

Terminal velocity

Answer

Momentum

Question 13

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

Accepted Answer

Gravitational force

Answer

Friction

Answer

Tension

Answer

Normal force

Question 14

If a car accelerates from rest at a rate of $$3 \, ext{m/s}^2$$ for $$5\, ext{s}$$ , what is its final velocity?

Accepted Answer

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

Answer

$$30 \, ext{m/s}$$

Answer

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

Answer

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

Question 15

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

Accepted Answer

$$20.4 \, ext{m}$$

Answer

$$40.8 \, ext{m}$$

Answer

$$10.2 \, ext{m}$$

Answer

$$30.6 \, ext{m}$$

Motion Forces

15 questions