Flashcardziz#05: Newton's Laws of Motion

Front

What is the net force on an object when forces are balanced?

Back

Zero

Front

Which of Newton's Laws states that for every action, there is an equal and opposite reaction?

Back

Newton's 3rd Law of Motion

Front

What happens to the acceleration of an object if the net force on it increases?

Back

The acceleration increases.

Front

What are the two factors that determine the amount of friction between two objects?

Back

Force and roughness between surfaces.

Front

How do you calculate the coefficient of static friction?

Back

Coefficient of static friction = Force required to move object / Weight of the object.

Front

What is Newton's 1st Law of Motion?

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 Newton's 2nd 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 the effect of increasing mass on acceleration if the net force is constant?

Back

The acceleration decreases.

Front

What is friction?

Back

A force that opposes the motion of two surfaces in contact.

Front

What is static friction?

Back

The friction that exists between a stationary object and the surface on which it's resting.