Energy, Motion and Forces Test Prep

Which of the following correctly states the Law of Conservation of Energy?

• An option in motion will stay in motion and an object at rest will stay at rest, unless acted upon by an unbalanced force.

• Energy can be created or destroyed by changing forms

• Energy is gained after a transformation.

• Energy cannot be created or destroyed, it only changes form.

Tags

NGSS.HS-PS3-2

A force is described as:

• A push only

• A pull only

• A push or a pull

• None of the above

The net force of an object that is moving is

• static friction

• zero

• kinetic energy

• more than zero

Tags

NGSS.MS-PS2-2

What causes 2 magnets to attract?

• Both poles are north
• They are opposite poles
• Both poles are south
• There are no poles

Tags

NGSS.3-PS2-3

What is a reference point?

• Something that is moving.

• Something that is not moving.

• A point used to describe motion.

• A car.

What two factors influence speed?

• The work an object does and the time it takes.

• The distance an object travels and the time it takes to do it.

• The time it takes an object to travel and the force used.

• The distance and object travels and the work being done to get it there.

Tags

NGSS.MS-PS3-1

What happens to the motion of an object when the forces acting on it are balanced?

• The object changes direction.

• The object's motion does not change.

• The object's speeds up.

• The object slows down.

Tags

NGSS.MS-PS2-2

This position vs. time graph shows an object...

• not moving

• moving with constant velocity

• moving with changing velocity

This position vs. time graph shows an object...

• not moving

• moving with constant velocity

• moving with changing velocity

Which is the energy of moving objects?

• potential energy

• kinetic energy

• elastic potential energy

• chemical potential energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5