Newton's Laws

Front

What is Newton's 1st Law of Motion?

Back

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

Front

What is the formula for calculating force?

Back

F = ma (Force equals mass times acceleration).

Front

What does inertia refer to?

Back

Inertia is the tendency of an object to resist changes in its state of motion. The more mass an object has, the more inertia it has.

Front

What is Newton's 2nd Law of Motion?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F = ma).

Front

What is the unit of force?

Back

The unit of force is the Newton (N).

Front

What is the unit of mass?

Back

The unit of mass is the kilogram (kg).

Front

What is Newton's 3rd Law of Motion?

Back

For every action, there is an equal and opposite reaction.

Front

If a 50 kg skater accelerates at 5 m/s², what force is applied?

Back

F = ma = 50 kg x 5 m/s² = 250 N.

Front

How does mass affect acceleration according to Newton's 2nd Law?

Back

As mass increases, acceleration decreases if the same force is applied.

Front

What is the relationship between force, mass, and acceleration?

Back

Force is the product of mass and acceleration (F = ma).