Balanced and Unbalanced Forces

Front

What are balanced forces?

Back

Balanced forces are two or more forces acting on an object that cancel each other out, resulting in no change in motion.

Front

What are unbalanced forces?

Back

Unbalanced forces are forces that do not cancel each other out, causing a change in the motion of an object.

Front

What happens when a marble rolls down a ramp?

Back

The forces acting on the marble are unbalanced, causing it to accelerate down the ramp.

Front

What is gravity?

Back

Gravity is the force that pulls objects toward the Earth.

Front

What is the net force when forces are balanced?

Back

The net force is 0N when forces are balanced.

Front

What occurs when the net force is 0N?

Back

When the net force is 0N, the object will not move if it is at rest, or it will continue to move at a constant speed if it is already in motion.

Front

How do unbalanced forces affect motion?

Back

Unbalanced forces cause an object to start moving, stop moving, or change direction.

Front

What is an example of balanced forces in everyday life?

Back

An example of balanced forces is a book resting on a table; the force of gravity pulling it down is balanced by the normal force from the table pushing it up.

Front

What is an example of unbalanced forces in everyday life?

Back

An example of unbalanced forces is a soccer ball being kicked; the force of the kick is greater than the forces acting against it, causing the ball to move.

Front

What is inertia?

Back

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