magnets

What subject is attracted to a magnet?

• Silver
• Water
• Metal
• Iron

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

Tags

NGSS.MS-PS2-5

What is our best evidence that Earth has a magnetic field?

• All things fall toward Earth's center
• A compass needle lines up with it
• Winds blow from east to west
• Earth's oceans all have currents

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

How is an electromagnet different from a permanent magnet?

• An electromagnet is smaller and less powerful.
• An electromagnet's magnetism can be turned off.
• An electromagnet can be built without using metal.
• An electromagnet does not attract objects containing iron.

How can the strength of an electromagnet be increased?

• by rubbing it with a stronger magnet
• by increasing the coils of wire around the iron
• by increasing the length of the wire from the battery
• by loosening the coil of wire around the iron

What is magnet sorrounded by?

• nothing

• magnetic field

• magnetic energy

• i don't know

Iron, Nickel and cobalt are all __________________ materials

• Shiny
• poles
• magnetic
• cold

Tags

NGSS.MS-PS2-3

True or False: All metals are attracted to magnet.

• True
• False

Tags

NGSS.MS-PS2-3

Earth acts like a giant magnet because its center is made up MOSTLY of

• granite
• limestone
• iron
• nickel

This large crane magnet functions only when the electrical current is ON.  The crane magnet is an example of what type of magnet?

• NIB Magnet
• Ceramic Magnet
• Electromagnet
• funnel magnet

Tags

NGSS.MS-PS2-3