Forces, friction and gravity basics

Front

What is the force of gravity acting on an object called?

Back

Weight

Front

What type of friction do wheels on a skateboard experience?

Back

Rolling Friction

Front

What is the motion of a falling object when the only force acting on it is gravity?

Back

Free fall

Front

What is the constant velocity of a falling object when air resistance equals the force of gravity?

Back

Terminal velocity

Front

What type of friction does Sally experience when she slides on a surface?

Back

Sliding Friction

Front

What is the force that opposes the motion of an object sliding over a surface?

Back

Friction

Front

What is the term for the pull that the Earth exerts on an object?

Back

Gravity

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force of gravity acting on that mass.

Front

What happens to an object in free fall?

Back

It accelerates downwards due to gravity without any other forces acting on it.

Front

What is static friction?

Back

The friction that keeps an object at rest and prevents it from starting to move.