Forces and Motion

A force is a push or pull that can change the motion of an object.

Motion is the change in position of an object over time.

Balanced forces are equal forces acting in opposite directions, resulting in no change in motion.

Unbalanced forces are forces that are not equal and opposite, causing a change in motion.

Friction is a force that opposes the motion of an object, often caused by contact with another surface.

Gravity is the force that pulls objects toward each other, such as the Earth pulling objects toward its center.

The greater the mass of an object, the more force is needed to change its motion.

A motor provides a pushing force that can overcome gravity, allowing water to move up.

The object with less mass will have a greater change in motion.

A sandy beach has high friction compared to a smooth wooden board.