Magnetism

Question 1

A substance that attracts magnetic materials

Answer 1

Magnet

Question 2

a point on a magnet where the magnet attraction is the greatest

Answer 2

Magnetic pole

Question 3

Pole that points north in the earths magnetic field

Answer 3

North Pole

Question 4

pole that points south in the earths magnetic field

Answer 4

South Pole

Question 5

coil of wire that carries an electric current

Answer 5

electromagnet

Question 6

Magnets forces are important because of the relationship between ______ and _____

Answer 6

Magnetism

electricity

Question 7

how many kinds of poles do magnets have

Answer 7

two

Question 8

the laws of magnetic force is that _____ poles attract each other and ______ poles _____ each other.

Answer 8

unlike
like
repel

Question 9

the force of gravity acts on objects that have ______.

Answer 9

mass

Question 10

All forces come in ____.

Answer 10

pairs

Question 11

In both left-rules, your thumb always points in the direction the ______ charges move.

Answer 11

negative

Question 12

the fingers of your left hand always point in the direction of the ______

Answer 12

magnetic field

Question 13

a bar shaped magnet generally produces its strongest effect at.

Answer 13

both poles

Question 14

two like magnets poles always

Answer 14

repel each other

Question 15

a moving charge creates a magnetic field. The strength of the field depends on the

Answer 15

speed and strength of the charge.

Question 16

in both left-hand rules, your thumb points in the direction in which

Answer 16

the negative charges move

Question 17

a coil that carries an electric current is called an

Answer 17

electromagnet

Question 18

one advantage of lifting magnet is that it can lift

Answer 18

odd shapes and sizes

Question 19

a magnetic chuck

Answer 19

is an electromagnet

Question 20

pieces of iron and steel can be removed from other materials on a belt by means of a.

Answer 20

magnetic pulley