Forces and Motion

Front

_______ is the force of gravity acting on an object.

Back

Weight

Front

_________ is the product of an object’s mass and its velocity.

Back

Momentum

Front

Gravity is a force that acts between any two _______.

Back

masses

Front

________ is the constant velocity of a falling object when the force of air resistance equals the force of gravity.

Back

Terminal velocity

Front

What is force measured in?

Back

Newtons

Front

The rate of change of velocity is known as _______.

Back

Acceleration

Front

The law that states that an object in motion stays in motion unless acted upon by an external force is called _______.

Back

Newton's First Law of Motion

Front

The force that opposes the motion of two surfaces that are in contact is called _______.

Back

Friction

Front

The formula for calculating momentum is _______.

Back

p = mv (momentum = mass x velocity)

Front

The acceleration due to gravity on Earth is approximately _______.

Back

9.81 m/s²