Magnetism

What do the lines around this magnet represent?

• North Pole
• South Pole
• Magnetic Declination
• Magnetic Field

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

As the distance between two magnets increases (they get farther apart), the force between them:

• Increases
• Decreases
• Stays the Same

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

If you cut a magnet in half, what happens to the poles?

• One half gets the North Pole, the other half gets the South Pole
• Both halves get only a North Pole
• Both halves get only a South Pole
• Both halves get a North pole and a South Pole

Tags

NGSS.MS-PS2-3

What is responsible for the Magnetic Field around Earth?

• The Earth's crust
• The Earth's molton iron core
• The Earth's mantel
• The Sun

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

An electromagnet's poles may be reversed by:

• decreasing the voltage of the coil
• increasing the number of coils
• changing the direction of current flow
• altering the material used to make the coils

Tags

NGSS.MS-PS2-5

In un-magnetized materials the domains are __________ aligned.

• super
• slightly
• randomly
• always

Tags

NGSS.MS-PS2-3

What kind of magnet can be turned on and off?

• refridgerator magnet
• electromagnet
• magnetite
• iron

Tags

NGSS.MS-PS2-3

If a glass plate is placed over a magnet and iron filings are sprinkled over the glass, a pattern will be visible. What does this pattern indicate?

• The magnetic field

• The electrostatic field

• The piezoelectric effect

• The chemical reaction of the magnet and the filings

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

How can a wire become magnetic?

• point it north

• add a resistor

• heat it up

• run a current through it

Tags

NGSS.MS-PS2-3

You can make an electromagnet stronger by...

• increasing the current through the wire
• make the iron core bigger
• increase the number of loops around the core
• All of these