Magnets and Electricity REVIEW

What is magnetic force?

• a. A force exerted by a magnet only when it physically touches an object
• b. A force exerted by magnets that can be felt by objects around or near a magnet
• c. A force exerted by electrically charged particles
• d. A force exerted by magnets that makes an object become electrically charged

Tags

NGSS.MS-PS2-3

What is a magnet?

• a. An object that produces magnetic force
• b. An object that causes objects to become positively charged
• c. An object that causes objects to become negatively charged
• d. An object that attracts nonmetallic objects towards it

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

True or False: All objects made of iron, nickel or cobalt are magnets.

• True
• False

Tags

NGSS.MS-PS2-3

Complete the statement. The north pole of one magnet is ___________ the south pole of a second magnet.

• a. Attracted to
• b. Repelled by
• c. Attracted to or repelled by
• d. Neither attracted to or repelled by

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What is a magnetic material?

• a. A material that produces a magnetic force
• b. A material that is attracted to or repelled by a magnet
• c. A material that becomes positively charged when a magnet is brought near it
• d. A material that becomes negatively charged when a magnet is brought near it

Tags

NGSS.MS-PS2-5

How can you demagnetize a magnet?

• a. By running a permanent magnet over it in different directions
• b. By running a permanent magnet over it in the same direction
• c. By heating, hammering or dropping it
• d. By freezing it

Tags

NGSS.MS-PS2-3

What happens to the strength of magnetic field as you move away from the magnet?

• a. The strength of the magnetic field increases
• b. The strength of the magnetic field decreases
• c. The strength of the magnetic field doesn’t change

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What is responsible for creating a magnetic field around Earth?

• a. Earth’s atmosphere
• b. Earth’s crust
• c. Earth’s mantle
• d. Earth’s iron core

Earth’s magnetosphere is important because:

• a. It defects dangerous solar wind from the sun
• b. It keeps us in orbit around the Sun
• c. It keeps the moon in orbit around the Earth
• d. It prevents extraterrestrial objects from crashing into Earth

Where is Earth’s magnetic South Pole located in relation to Earth’s geographic South Pole?

• a. Earth’s magnetic South pole is located directly at Earth’s geographic South pole
• b. Earth’s magnetic South pole is located ~10° from Earth’s geographic South pole
• c. Earth’s magnetic South pole is located directly at Earth’s geographic North pole
• d. Earth’s magnetic South pole is located ~10° from Earth’s geographic North pole