Forces & Free Body Diagrams

Front

What is the net force?

Back

The net force is the overall force acting on an object when all the individual forces are combined. It determines the object's acceleration and direction.

Front

What are paired forces?

Back

Paired forces are forces that act in opposite directions and are equal in size, according to Newton's Third Law of Motion.

Front

What does a net force of 0 N indicate?

Back

A net force of 0 N indicates that the forces acting on an object are balanced, resulting in no change in motion.

Front

What is the SI Unit of force?

Back

The SI Unit of force is the Newton (N).

Front

What is an example of an object experiencing unbalanced forces?

Back

A hockey puck gliding to the right is an example of an object experiencing unbalanced forces, as it is in motion.

Front

What is the effect of unbalanced forces on an object?

Back

Unbalanced forces cause an object to accelerate in the direction of the net force.

Front

What is the formula for calculating net force?

Back

Net Force (F_net) = Force applied (F_applied) - Force of friction (F_friction) or F_net = F1 + F2 + ... + Fn for multiple forces.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object, acting parallel to the surface of contact.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, measured in kilograms (kg), while weight is the force of gravity acting on that mass, measured in Newtons (N).

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. It is directly related to the mass of the object.