Quiz about Forces and Motion

Question 1

Unbalanced forces can cause a change in which of the factors below?

Accepted Answer

speed

Accepted Answer

direction

Answer

inertia

Answer

friction

Question 2

A force can act to cause an object at rest to move or it can accelerate an object that is already moving.

Accepted Answer

True

Answer

False

Question 3

How can a force change the motion of an object that is already moving?

Accepted Answer

changing its speed

Accepted Answer

changing its direction

Accepted Answer

changing its speed and direction

Answer

none of these options

Question 4

What force causes a 1 kg mass to accelerate at a rate of 1 meter per second each second?

Accepted Answer

$$1\ newton$$

Answer

$$1\ \frac{kg}{m\cdot s^2}$$

Answer

$$1\ kg\cdot m$$

Answer

$$1\ \frac{kg}{s}$$

Question 5

Balanced forces on an object will cause motion.

Accepted Answer

False

Answer

True

Question 6

Friction is a force that helps objects that are touching move past each other more easily.

Accepted Answer

False

Answer

True

Question 7

Earth's gravity acts downward toward the center of the Earth.

Accepted Answer

True

Answer

False

Question 8

Terminal velocity is reached when a falling object has zero net force on it.

Accepted Answer

True

Answer

False

Question 9

What is momentum measured in?

Accepted Answer

$$kg\cdot\frac{m}{s}$$

Answer

$$\frac{kg}{m\cdot s^2}$$

Answer

$$kg\cdot\frac{m}{s^2}$$

Answer

$$\frac{kg}{m\cdot s}$$

Question 10

Which object has the greatest momentum?

Accepted Answer

a 300 kg roller coaster car traveling at 25 m/s

Answer

a 700 kg bird flying at a velocity of 2.5 m/s

Answer

a 1000 kg car traveling at 5 m/s

Answer

a 40 kg shopping cart rolling along at 0.5 m/s

Question 11

In a closed system with two objects, the loss of momentum of one object equals the gain in momentum of the other object.

Accepted Answer

True

Answer

False

Question 12

A construction worker pushes a wheelbarrow with a total mass of 50 kg. What is the acceleration of the wheelbarrow if the net force on it is 75 N?

Accepted Answer

$$1.5\ \frac{m}{s^2}$$

Answer

$$1.5\ \frac{m}{s}$$

Answer

$$5300\ kg\cdot\frac{m}{s^2}$$

Answer

$$5300\ kg\cdot\frac{m}{s}$$

Question 13

Your own car has a mass of 2000 kg. If your car produces a force of 5000 N, how fast will it accelerate?

Accepted Answer

$$2.5\ \frac{m}{s^2}$$

Answer

$$2.5\ \frac{m}{s}$$

Answer

$$0.4\ kg\cdot\frac{m}{s^2}$$

Answer

$$0.4\ kg\cdot\frac{m}{s}$$

Question 14

A truck with a mass of 3500 kg, including passengers, has an engine that produces a net horizontal force of 525 N. Assuming that there are no other forces involved in the motion, what is the acceleration of the truck?

Accepted Answer

$$0.15\ \frac{m}{s^2}$$

Answer

$$0.15\ \frac{m}{s}$$

Answer

$$6.67\ kg\cdot\frac{m}{s^2}$$

Answer

$$6.67\ kg\cdot\frac{m}{s}$$

Question 15

A backpack weighs 8.2 newtons and has a mass of 5 kg on the moon. What is the strength of gravity on the moon?

Accepted Answer

$$1.64\ \frac{m}{s^2}$$

Answer

$$1.64\ \frac{m}{s}$$

Answer

$$1.64\ N$$

Answer

$$0.61\ \frac{m}{s^2}$$

Question 16

A 2.2 kg textbook weighs 18.59 newtons on Venus. What is the strength of gravity on Venus?

Accepted Answer

$$8.45\ \frac{m}{s^2}$$

Answer

$$8.45\ \frac{m}{s}$$

Answer

$$8.45\ N$$

Answer

$$0.12\ \frac{m}{s^2}$$

Question 17

If a 0.5 kg pair of running shoes would weigh 11.55 newtons on Jupiter, what is the strength of gravity there?

Accepted Answer

$$23.1\ \frac{m}{s^2}$$

Answer

$$23.1\ \frac{m}{s}$$

Answer

$$23.1\ N$$

Answer

$$23.1\ kg$$

Question 18

If a 0.5 kg pair of running shoes would weigh 11.55 newtons on Jupiter, what is the strength of gravity there?

Accepted Answer

$$23.1\ \frac{m}{s^2}$$

Answer

$$23.1\ \frac{m}{s}$$

Answer

$$23.1\ N$$

Answer

$$23.1\ kg$$

Forces and Motion

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science