Force & Net Force

Front

What is an unbalanced force?

Back

An unbalanced force is a force that causes an object to accelerate, change its velocity, or change its direction.

Front

What is a balanced force?

Back

A balanced force is a force that does not cause a change in the motion of an object; the net force is zero.

Front

What happens to an object when the net force acting on it is zero?

Back

The object remains at rest or continues to move at a constant speed in a straight line.

Front

How do you determine if forces acting on an object are balanced or unbalanced?

Back

If the forces acting on an object are equal in size and opposite in direction, they are balanced. If they are not, they are unbalanced.

Front

What is the net force?

Back

The net force is the vector sum of all the forces acting on an object.

Front

If an object is moving at a constant speed, what can be said about the forces acting on it?

Back

The forces acting on it are balanced.

Front

What is the effect of an unbalanced force on an object?

Back

An unbalanced force will cause the object to accelerate in the direction of the net force.

Front

In which direction will an object move if the net force is directed to the left?

Back

The object will move to the left.

Front

What is the relationship between force, mass, and acceleration?

Back

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

Front

What is inertia?

Back

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