Force and Motion Review-Physics

Front

What is the sum of all forces acting on an object and its direction called?

Back

Net Force.

Front

If a pitcher hurls a pitch at 30 m/s² with a force of 15 N, what is the mass of the baseball?

Back

0.5 kg.

Front

According to Newton's second law, what is needed to move an object with greater mass?

Back

More force.

Front

What type of friction acts on objects that are not moving?

Back

Static friction.

Front

What is the tendency of an object to resist a change in its motion called?

Back

Inertia.

Front

What is the formula for calculating force?

Back

Force = Mass × Acceleration.

Front

What is the unit of force in the International System of Units (SI)?

Back

Newton (N).

Front

What does Newton's first law of motion 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 is the relationship between mass and acceleration in Newton's second law?

Back

Acceleration is directly proportional to the net force and inversely proportional to the mass.

Front

What is kinetic friction?

Back

Friction that acts on moving objects.