Forces and Motion Concepts

Front

What is friction?

Back

Friction is a force that opposes the motion of an object when it comes into contact with another surface.

Front

What is the role of gravity in motion?

Back

Gravity is a force that pulls objects toward the Earth, causing them to accelerate downwards.

Front

What does it mean for forces to be balanced?

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in motion.

Front

What happens when forces are unbalanced?

Back

Unbalanced forces cause an object to accelerate, decelerate, or change direction.

Front

What is acceleration?

Back

Acceleration is the rate at which an object's velocity changes over time.

Front

How does mass affect motion?

Back

The greater the mass of an object, the more force is needed to change its motion.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

What is the normal force?

Back

The normal force is the support force exerted by a surface perpendicular to the object resting on it.

Front

What is air resistance?

Back

Air resistance is a type of friction that acts against the motion of an object moving through the air.

Front

What is the difference between speed and velocity?

Back

Speed is how fast an object is moving, while velocity includes both speed and direction.