Newton’s 1st Law

Question 1

Define “Newton’s first law”.

Answer 1

An object that is at rest, stays at rest, and an object in motion stays in motion at a constant velocity, unless acted upon by an external/unbalanced force.

Question 2

What are the 2 scenarios that can happen if the forces are balanced?

Answer 2

1. The object is at rest (v = 0m/s) stays at rest

2. The object is in uniform motion (v is not equal to 0m/s) stays in motion (same velocity and direction)

Question 3

Define “inertia”.

Answer 3

The tendency of an object to resist changes in its velocity, whether in motion or motionless

Question 4

What are the 3 types of inertia?

Answer 4

1. Inertia of rest
2. Inertia of direction
3. Inertia of motion

Question 5

Define “equilibrium”.

Answer 5

If the size and direction of the forces acting on an object are exactly balanced and there is no net force acting on the object, the object is therefore in equilibrium