Forces and Free Body Diagrams

Front

What is the force that keeps objects on top of surfaces instead of letting them sink into the surface?

Back

Normal force.

Front

Which forces are considered contact forces?

Back

Applied force (F_app), Tension force (F_tens), Normal force (F_norm).

Front

What is the missing force when discussing friction in motion?

Back

Frictional force.

Front

What forces does a hockey puck experience when moving at a constant velocity across the ice?

Back

Gravity and Normal force.

Front

What type of friction occurs when air pushes against a moving object causing it to decelerate?

Back

Air resistance.

Front

Define normal force.

Back

The force exerted by a surface to support the weight of an object resting on it, acting perpendicular to the surface.

Front

What is static friction?

Back

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

Front

Explain the concept of inertia.

Back

The tendency of an object to resist changes in its state of motion.

Front

What is the difference between weight and mass?

Back

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

Front

What is gravitational force?

Back

The attractive force between two masses, such as the Earth and an object.