Electromagnetism

A current is produced when _______________ flow in a circuit.

• protons

• neutrons

• electrons

• nucleons

What happens when an electric current flows through a wire?

• The wire begins to spin.

• Nothing happens.

• A field of gravity is created around the wire.

• A magnetic field is created around the wire.

A _____________ transforms mechanical energy into electrical energy.

• generator

• electromagnet

• circuit

• magnetic field

Increasing the number of coils in an electromagnet will _________ the power of the magnet.

• decrease

• increase

• not affect

If you wrap more coils around an electromagnet, it will become...(think about the Webquest.)

• brighter
• stronger
• weaker
• invisible

The process of creating a current in a circuit by changing a magnetic field

• A. electric generator
• B. electric motor
• C. electromagnetic induction
• D. magnet

A device that converts electrical energy into kinetic energy

• A. electromagnet
• B. electromagnetic induction
• C. electric motor
• D. electromagnetism

The relationship between electricity and magnetism is called

• scary
• magnet role reversal
• electromagnetism
• magneteel

Which of the following is the definition of a capacitor

• imaginary surface that we draw to represent the vibrating part of a wave.

• he charge passing a point in a circuit every second

• an electrical device for storing charge

A ____________________ is the first device capable of storing an electric charge.

• charge

• battery

• Leyden Jar

• restored