Forces Review

Question 1

What is the weight of a 45 kg bulldog?

Accepted Answer

450 N

Question 2

This picture best represents which of Newton's Laws?

Accepted Answer

1st

Question 3

An object is moving at a constant velocity, which is true

Accepted Answer

Net force is zero

Question 4

If the net force on an object is zero, then you are sure that ...

Accepted Answer

it is not accelerating

Question 5

Every action has an equal opposite reaction

Accepted Answer

3rd

Question 6

What is the mass of a 250 N monkey?

Accepted Answer

25 kg

Question 7

The net force on an object is equal to the mass time the acceleration (F=ma)

Accepted Answer

2nd Law

Question 8

A skydiver has reached their top speed, which of the following is true.

Accepted Answer

They are at terminal velocity, Their acceleration is zero, Their net force is zero

Question 9

A 20 N net force causes a 5 kg toy car to start moving. What is the acceleration?

Accepted Answer

4 m/s2

Question 10

An object in motion stays in motion unless acted on by an unbalanced force

Accepted Answer

1st

Question 11

The unit we use to measure weight in physics is

Accepted Answer

N

Question 12

This picture best represents which of Newton's Laws?

Accepted Answer

3rd

Questions 12