ELECTROMAGNETISM

Which of the following is not a good conductor?

• Copper

• Silver

• Aluminium

• Plastic

Particles with opposite charges ____________ and particles with same (or like) charges ____________.

• attract, repel

• repel, repel

• attract, attract

• repel, attract

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

A current is produced when _______________ flow in a circuit.

• protons

• neutrons

• electrons

• nucleons

The area of magnetic force around a magnet is known as its ____________.

• magnetism

• magnetic current

• magnetic field

• electric current

Tags

NGSS.MS-PS2-5

How do you increase the strength of an electromagnet?

• Add a motor and/or light bulbs

• Add more light bulbs and wire coils

• Add more wire coils

• Increase the voltage

What three minerals are attracted to a magnet?

• Gold, copper, cobalt

• Cobalt, aluminum, silver

• Iron, copper, aluminum

• Iron, nickel, cobalt

Tags

NGSS.MS-PS2-5

A device that converts electrical energy into mechanical energy

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

Tags

NGSS.HS-PS3-3

What kind of magnet can be turned on and off?

• refrigerator magnet
• electromagnet
• magnetite
• iron

Tags

NGSS.MS-PS2-3

What is the flow of electricity?

• electric motor
• Electric current
• Electric eel
• electric circuit

If a person accidentally cut a circuit, what would the circuit be called?

• closed circuit

• open circuit

• series circuit

• parallel circuit