Magnetic Forces

Question 1

Magnets exert _____ on each other at a distance

Answer 1

energy/force

Question 2

The magnetic forces are ______ between opposite poles and _____ between like poles.

Answer 2

attractive, repel.

Question 3

Magnetic ______ surround magnets and exert ______ when they contact other magnetic _____ or magnetic materials.

Answer 3

fields,force,fields

Question 4

Magnetic ______ line up in a strong magnetic _____.

Answer 4

domains, field

Question 5

The object becomes ______ when the magnetic ______ lines up.

Answer 5

magnetic, domain

Question 6

magnet

Answer 6

an object that attracts iron and other materials that have magnetic qualities similar to iron.

Question 7

ferromagnetic elements

Answer 7

iron, nickel, cobalet

Question 8

magnetic force

Answer 8

a force of attraction or repulsion created by a magnet (noncontact)

Question 9

Any material that is strongly attracted to a magnet is a _______ material.

Answer 9

magnetic

Question 10

magnetic pole

Answer 10

a place where the force a magnet applies is strongest (N & S)

Question 11

When you break a magnet into pieces, each piece will have a _______.

Answer 11

north and south pole

Question 12

a _____ exists between the poles of any two ______

Answer 12

force, magnets

Question 13

like poles _____

Answer 13

repel

Question 14

different poles_____

Answer 14

attract

Question 15

magnetic field

Answer 15

invisible, surrounds magnet,applies force to other magnets even when not in contacgt

Question 16

magnetic fields are represented by____

Answer 16

magnetic field lines

Question 17

the needle of a compass is a small _____

Answer 17

magnet

Question 18

the needle of a compass algins with earths _____

Answer 18

field lines

Question 19

can magnets differ in strenght

Answer 19

yuh

Question 20

magnetic potential energy

Answer 20

stored energy due to the interactions of magnetic poles in a magnetic fielda

Question 21

a _____ must be applied to increase the magnetic potential energy.

Answer 21

force

Question 22

magnetic domain

Answer 22

a region in a magnetic material in which the magnetic fields of the atoms all point in the same direction

Question 23

all matter is made of ____

Answer 23

atoms

Question 24

every atom has its own ______ _____

Answer 24

magnetic field

Question 25

nonmagnetic materials

Answer 25

do not have atoms grouped in magnetic domains (plastics)

Question 26

magnetic materials

Answer 26

atoms are grouped in magnetic domains (metal, iron)

Question 27

a magnetic materials becomes a ____ a the magnetic _____ of the materials magnetic ______ line up

Answer 27

magnet,fields, domain