Objects and Motion

Front

What is an unbalanced force?

Back

An unbalanced force is a force that causes an object to move or change its motion because the net force acting on it is not zero.

Front

What is speed?

Back

Speed is the rate of motion, or how fast an object is moving.

Front

What is a force?

Back

A force is a push or pull that causes an object to move, stop, or change direction.

Front

What happens when enough force is applied to an object?

Back

When enough force is applied to an object, it can change the object's speed or direction.

Front

What is a balanced force?

Back

A balanced force occurs when two forces acting on an object are equal in size and opposite in direction, resulting in no change in motion.

Front

What is motion?

Back

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

Front

What is friction?

Back

Friction is a force that opposes motion between two surfaces that are in contact.

Front

What is gravity?

Back

Gravity is a force that pulls objects toward each other, such as the force that pulls us toward the Earth.

Front

What is acceleration?

Back

Acceleration is the rate at which an object changes its speed or direction.

Front

What is a straight path in motion?

Back

A straight path in motion is a line along which an object moves without changing direction.