Force and Motion

Front

What is the force that opposes motion between two surfaces?

Back

Friction

Front

Does an object with a lot of mass require more or less force to be moved?

Back

More force

Front

What does a position vs. time graph indicate if it shows an object that is accelerating?

Back

The object is speeding up.

Front

What is the term for the tendency of an object at rest to stay at rest unless acted upon by a force?

Back

Inertia

Front

How do you calculate average speed?

Back

Average speed = distance / time

Front

What is the unit of force in the International System of Units (SI)?

Back

Newton (N)

Front

What is Newton's First 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 the relationship between mass and acceleration according to Newton's Second Law?

Back

Force equals mass times acceleration (F = ma).

Front

What is the formula for calculating kinetic energy?

Back

Kinetic energy = 1/2 mv², where m is mass and v is velocity.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude and direction).