Understanding Watts

Watts are a measure of _______.

• Power

• Energy

• Voltage

• Current

Fill in the blank: Watts are calculated using the formula Current (I) * ______ =(W).

• Watts

• Amperes

• Volts

• Ohms

Magnets attract objects made of ________ materials.

• magnetic

• plastic

• wooden

• glass

Permanent magnets are made of ______ materials such as steel.

• magnetic

• non-magnetic

• conductive

• insulating

What type of magnets can be made using conductive and magnetic materials?

• Permanent magnets

• Temporary magnets

• Natural magnets

• Artificial magnets

What are the parts of a magnet that exert the greatest force?

• Poles

• Center

• Edges

• Surface

Magnetic poles occur in pairs usually called ______ and ______.

• A) east (E) and west (W)

• B) north (N) and south (S)

• C) up (U) and down (D)

According to the law of magnets, what happens when like poles are near each other?

• A) They attract

• B) They repel

• C) They do nothing

What is a magnetic field?

• A region around a magnetic material or a moving electric charge within which the force of magnetism acts.

• A type of electric field that only occurs in conductors.

• A field that is only present in the absence of electric charges.

• A region where gravitational forces are stronger than magnetic forces.

All magnets are surrounded by what?

• Magnetic field

• Electric field

• Gravitational field

• Sound waves