Newton's laws

Front

Which of the following is an example of balancing forces?

• A Book resting on the table.
• A pencil is knocked off the desk.

Back

A Book resting on the table.

Front

What is Newton's 1st Law?

Back

An object at rest will stay at rest, an object in motion will stay in motion, unless an unbalanced force acts upon it.

Front

What is Newton's 2nd Law?

Back

Acceleration depends on two variables, the mass of the object and the amount of force.

Front

What is Newton's 3rd Law?

Back

For every action there is an equal and opposite reaction.

Front

What explains why objects resist changes in their state of motion?

Back

inertia

Front

A force of 90N is applied to each cart below, which one will accelerate the fastest? Options: Cart 1, Cart 2, Cart 3, Cart 4

Back

Cart 1

Front

A 10 kg object with a 50 N force applied. What is its acceleration?

Back

5 m/s^2

Front

Which object would have the greatest force? Options: a 5-kg object accelerating at 100 m/s, a 5-kg object accelerating at 20 m/s, a 20-kg object accelerating at 4 m/s, a 20-kg object accelerating at 3 m/s

Back

a 5-kg object accelerating at 100 m/s

Front

What is the force that the desk exerts on a dictionary weighing 15 Newtons?

Back

15 N

Front

How much force is needed to accelerate a 3kg skateboard at 5m/s²?

Back

15N