Calculating Net Force

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 motion.

Front

What unit do scientists use to measure force?

Back

Newtons (N) are the standard unit of measurement for force in the International System of Units (SI).

Front

What is friction?

Back

Friction is the force that one surface or object exerts on another when the two rub against each other. It opposes motion.

Front

What is a balanced force?

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in motion.

Front

What is an unbalanced force?

Back

Unbalanced forces are not equal and can cause an object to start moving, stop moving, or change direction.

Front

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

Back

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

Front

How do you calculate net force when two forces act in opposite directions?

Back

Subtract the smaller force from the larger force to find the net force.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. It depends on the object's mass.

Front

What is the relationship between mass and force?

Back

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

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It can be caused by a change in speed or direction.