Pretest for Electromagnetism

An electric current can produce a magnetic field.

• True 
• False

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

In large generators in power plants, ___________ rotate inside a coil of wire to produce an electric current.

• Wind
• Water
• Magnets
• Circuits

Tags

NGSS.MS-PS3-5

Magnets have two poles. What are they?

• North and South
• East and West
• Top and Bottom

Magnetism is a force that __________.

• freezes matter
• pushes or pulls
• expands and contracts

Tags

NGSS.MS-PS2-3

Choose the one that correctly describes magnetism.

• Like poles of a magnet attract, while opposite poles repel.
• Like poles of a magnet expand, while opposite poles contract
• Like poles of a magnet repel, while opposite poles attract.
• Like poles of a magnet contract, while opposite poles expand.

Which of the following conducts electricity?

• aluminum foil
• wood
• rubber band

What is the name for the type of electricity that happens when you drag your feet on the carpet and shock your friend?

• current electricity
• magnetic electricity
• static electricity

Which are all examples of electromagnets found in your house?

• shower, toothbrush, front door
• washing machine, blender, vacuum cleaner
• window shades, beach towel, bicycle

Tags

NGSS.MS-PS2-5

How is Earth's magnetic field similar to that of a magnet?

• It is hundreds of miles long
• It has north and south poles
• It is made in Earth's core
• It is shaped like a horseshoe

An electric current produces what?

• magnetic field

• magnet

• solenoid

• insulator