Newton's Laws Review

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by a net external force.

Front

What is Newton's Second 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 Newton's Third Law of Motion?

Back

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

Front

What does it mean when forces are balanced?

Back

The object is either at rest or moving at a constant velocity.

Front

If a car is moving at a constant velocity, what is the net force acting on it?

Back

0 N, because the forces are balanced.

Front

How do you calculate acceleration using force and mass?

Back

Acceleration (a) can be calculated using the formula a = F/m, where F is the net force and m is the mass.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

What happens to the acceleration of an object if the net force acting on it is doubled?

Back

The acceleration of the object is also doubled, according to Newton's Second Law.

Front

What is the formula for calculating force?

Back

Force (F) is calculated using the formula F = ma, where m is mass and a is acceleration.

Front

If a box with a mass of 90 kg is pushed with a force of 230 N, what is the acceleration?

Back

2.56 m/s² (using the formula a = F/m).