PRACTICE: Newton's Laws of Motion

Front

What is the speed and direction of an object referred to as?

Back

Velocity

Front

What is the SI unit for acceleration?

Back

meters per second squared

Front

What is a force described as?

Back

A push or pull that can change velocity and direction

Front

What does Newton's Second Law of Motion state?

Back

The acceleration of an object equals the net force acting on the object divided by the object's mass

Front

What is friction?

Back

A force that decreases the sliding motion of two surfaces

Front

What is a free-body diagram used for?

Back

To understand systems of objects with any amount of applied forces

Front

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

Back

Net force

Front

What does Newton's first law of motion state?

Back

An object in motion will stay in motion, and an object at rest will stay at rest unless acted upon by a force

Front

What are balanced forces?

Back

Forces that cancel each other out

Front

What are unbalanced forces?

Back

Forces that increase the motion of an object