Magnetism

A horseshoe magnet will generate a magnetic field similar in shape to that of two ________ poles brought near each other.

• like

• opposite

• positive

• negative

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

A magnetic field is a field of force that is produced by moving ________ charges.

• northern

• positive

• gravitational

• electric

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

The Earth produces its own ________ field.

• spectrum

• electric

• magnetic

• progressive

In magnetic materials, all of the ________ are pointing in the same direction.

• doors

• electrons

• domains

• orbits

Permanent magnets can be demagnetized by ___________________ them past the Curie point (approximately 1,060 °F).  

• heating

• freezing

• shaking

• solidifying

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Certain materials respond to magnetic fields by becoming ______________ themselves. ____________ is one of these materials.

• magnetic, Plastic

• electronic, Iron

• magnetic, Iron

• electronic, Plastic

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Some objects that normally aren't magnetic can become magnetized when connected to a circuit. Items that are magnetized in this way are called ________.

• electromagnets

• electrons

• electrochromic devices

• permanent magnets

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Probably the most useful thing about electromagnets is that they can be turned ________ and ________.

• on, off

• positive, negative

• north, south

• on, negative

If two magnets are placed so that a north pole and a south pole are facing each other, they will _____________ each other.

• date

• spin

• repel

• attract

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

If two magnets are placed so that two ____________ poles or two ____________ poles are facing each other, they will repel each other.

• North, South

• external, internal

• positive, negative

• North, West