Section 4: Newton's Laws Flashcard Review

Front

What is inertia?

Back

The property of matter that resists a change in motion (more mass = more inertia).

Front

An object with more mass will have:

Back

More inertia.

Front

If the NET FORCE on an object increases, what happens to its acceleration (assuming mass stays the same)?

Back

The acceleration increases (directly proportional).

Front

What is the formula to calculate acceleration?

Back

a = F / m, where F is force and m is mass.

Front

Calculate the acceleration of a 1 kg mass with a force of 20 N acting on it.

Back

20 m/s².

Front

What is the mass of an object if a force of 24 N results in an acceleration of 4 m/s²?

Back

6 kg.

Front

What does Newton's First Law state?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What does Newton's Second Law state?

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 does Newton's Third Law state?

Back

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

Front

Define net force.

Back

The overall force acting on an object when all the individual forces are combined.