Science Ch. 6 Test Motion and Force

Front

What is an unbalanced force?

Back

An unbalanced force is a force that causes an object to move or change its motion. It is not equal in size and opposite in direction to other forces acting on the object.

Front

What is gravity?

Back

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

Front

What type of motion does a pinwheel show?

Back

A pinwheel shows circular motion as it spins around a central point.

Front

What happens to an object with greater mass when a force is applied?

Back

The greater the mass of an object, the more force is needed to move it.

Front

What type of motion does a skier moving downhill demonstrate?

Back

A skier moving downhill demonstrates downward motion.

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 friction?

Back

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

Front

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

Back

An unbalanced force can cause a stationary object to start moving.

Front

What is motion?

Back

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

Front

What is an example of applied force?

Back

An example of applied force is when you push a toy car to make it move.