Forces: Sum it Up Questions

Front

What is 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 motion.

Front

What is the unit of force?

Back

The unit of force is the Newton (N).

Front

What does it mean for forces to be balanced?

Back

Balanced forces occur when two or more forces acting on an object are equal in size and opposite in direction, resulting in no change in motion.

Front

What does it mean for forces to be unbalanced?

Back

Unbalanced forces occur when the forces acting on an object are not equal, causing the object to accelerate in the direction of the net force.

Front

If an object has a net force of 0 N, what can we conclude about its motion?

Back

If the net force is 0 N, the object is either at rest or moving at a constant speed.

Front

What happens to an object when a net force is applied?

Back

When a net force is applied to an object, it will accelerate in the direction of the net force according to Newton's second law.

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 at a constant velocity unless acted upon by a net external force.

Front

What is Newton's second law of motion?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F=ma).

Front

What is Newton's third law of motion?

Back

For every action, there is an equal and opposite reaction.

Front

How do you calculate net force when two forces are acting in the same direction?

Back

Add the magnitudes of the forces together to find the net force.