Newton's Laws Review

Front

What is the force that opposes motion between two surfaces in contact?

Back

Friction is the force that opposes motion between two surfaces in contact.

Front

What does Newton's 3rd Law state?

Back

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

Front

What is required to compare two pictures in terms of motion?

Back

Newton's 2nd Law, which relates to the relationship between force, mass, and acceleration.

Front

If a 267.5 N unbalanced force causes an acceleration of 4.2 m/s², what is the mass of the object?

Back

The mass of the object is 63.69 kg.

Front

What happens when a person steps out of a boat onto a dock?

Back

The boat moves backward due to Newton's 3rd Law: for every action, there is an equal and opposite reaction.

Front

What is inertia?

Back

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

Front

What does Newton's 1st Law state?

Back

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

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity.

Front

How is force calculated according to Newton's 2nd Law?

Back

Force is calculated as the product of mass and acceleration (F = m * a).

Front

What is the relationship between mass and acceleration in Newton's 2nd Law?

Back

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