Science 8 - Force and Motion

A change in the position of an object over time.

• Motion

• Force

A push or a pull

• Force

• Motion

Is one in which the net force equals ZERO.

• Balanced Force

• Unbalanced Force

Is one in which the net force is greater than zero.

• Balanced Force

• Unbalanced Force

Unbalanced forces can act in the same direction.

• True

• False

Unbalanced forces can act in opposite directions.

• True

• False

ALL motion is caused by a force or forces.

• True

• False

The total combination of the forces acting on an object is called ______________.

• Net force

• Reference Point

An object will remain at rest unless there is a net force

• Inertia

• Acceleration

• Second Law of Motion

When a force acts (pushes or pulls) on an object, it changes the object’s speed or direction .

• Inertia

• Acceleration

• First Law of Motion