Newton's laws of motion

Question 1

Force of gravity= force of ____

Answer 1

attraction

Question 2

Force on an object due to the pull of gravity is ____, measured in ______.

Answer 2

weight, Newtons

Question 3

What does the weight of an object depend on?

Answer 3

where it is: gravitational field strength

Question 4

What is mass?

Answer 4

A measure of the amount of matter in an object/substance

Question 5

What is gravitational field strength?

Answer 5

Force of gravity on a unit of mass
- vector quantity

Question 6

How do you calculate weight?

Answer 6

mass x gravitational field strength

Question 7

What is Newton’s first law of motion?

Answer 7

An object at rest will stay at rest unless acted on by an unbalanced force. An object in motion will stay in motion with the same speed and direction unless acted on by an unbalanced force.

Law of inertia

Question 8

What is Newton’s second law of motion?

Answer 8

Acceleration is produced when an unbalanced force acts on a mass.

Force= mass x acceleration
F=ma

Question 9

What is Newton’s third law of motion?

Answer 9

Every action has an equal and opposite reaction.