Force & Net Force

Front

What is force?

Back

A force is a push or pull that can cause an object to move, change direction, or change speed.

Front

What is net force?

Back

Net force is the total force acting on an object after all the individual forces are combined.

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 does it mean for forces to be unbalanced?

Back

Unbalanced forces are not equal, causing a change in motion, such as starting, stopping, or changing direction.

Front

If an object is at rest and the net force acting on it is 0N, what will happen?

Back

The object will remain at rest.

Front

If an object is moving and the net force acting on it is 0N, what will happen?

Back

The object will continue to move at a constant speed in the same direction.

Front

What happens to an object when it experiences an unbalanced force?

Back

The object will accelerate in the direction of the net force.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object has due to its motion.

Front

How does speed affect kinetic energy?

Back

Kinetic energy increases with the square of the speed; if speed doubles, kinetic energy increases by four times.

Front

What is the relationship between force and acceleration?

Back

According to Newton's second law, force equals mass times acceleration (F=ma).