Friction

Front

What is the metric (SI) unit for FORCE?

Back

N (Newtons)

Front

Why is it harder to start an object sliding than it is to keep it sliding?

Back

Because the static coefficient of friction is greater than the sliding coefficient of friction.

Front

Are the forces on an object in free fall balanced or unbalanced?

Back

Unbalanced

Front

What is the formula to calculate acceleration?

Back

Acceleration = Net Force / Mass

Front

If a net force of 45 Newtons acts on a 3.2 kg box, how much does this box accelerate?

Back

14 m/s²

Front

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

Back

F = m * a (Newton's Second Law)

Front

What is friction?

Back

Friction is the force that opposes the motion of an object.

Front

What are the two main types of friction?

Back

Static friction and kinetic (sliding) friction.

Front

What is static friction?

Back

Static friction is the force that keeps an object at rest and prevents it from moving.

Front

What is kinetic friction?

Back

Kinetic friction is the force that opposes the motion of an object that is sliding.