Forces and Free Body Diagrams

Front

What is the normal force?

Back

The normal force acts perpendicular to a contact surface and opposes the weight of an object.

Front

What does the length of an arrow in a free body diagram represent?

Back

The length of the arrow shows the magnitude of the force.

Front

What force keeps objects on top of surfaces instead of letting them sink?

Back

Normal force.

Front

What is the relationship between normal force and weight?

Back

The normal force is often equal to the weight of an object when it is resting on a horizontal surface.

Front

What is tension force?

Back

Tension force is the force transmitted through a string, rope, or cable when it is pulled tight by forces acting from opposite ends.

Front

What is frictional force?

Back

Frictional force is the force that opposes the motion of an object when it is in contact with another surface.

Front

What is the role of free body diagrams?

Back

Free body diagrams are used to visualize the forces acting on an object, helping to analyze the object's motion.

Front

What is inertia?

Back

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

Front

What happens to the normal force when an object is on an inclined plane?

Back

The normal force decreases as the angle of the incline increases.

Front

What is the difference between static and kinetic friction?

Back

Static friction prevents motion between two surfaces, while kinetic friction acts on moving surfaces.