Magnetic fields

Question 1

Magnet

Answer 1

Any object that had magnetic force

Magnetic Force-anything that pushed or pulls

Question 2

Magnetic Poles

Answer 2

Parts of a magnet where the magnetic force is the strongest

Question 3

How do Magnets Attract?

Answer 3

Metal made up of tiny particles

Question 4

What is a magnetic field?

Answer 4

Attract magnet force around a magnet

Question 5

Repel

Answer 5

To push away

Question 6

Attract

Answer 6

To come together

Question 7

What is a compass?

Answer 7

An instrument that uses Earth’s magnetic field to give people direction
Needle a tiny magnetic

Question 8

What is an Electromagnet?

Answer 8

A coil of wire wrapped around a metal core

Question 9

Loudspeaker

Answer 9

Device that changed electrical energy into sound

Question 10

What does a compass needle point north?

Answer 10

Needle points north because it lines up with Earths magnetic field

Question 11

How does a Generator work?

Answer 11

Motor turns wire loop between the 2 magnetic poles , magnetic field produces to the wire , wire gets closer to the magnet piles , electricity get pushed thru the wire

Question 12

Difference between a temporary and permanent magnet

Answer 12

Temporary magnet is when magnetic particles move

Permanent magnet when magnetic particles are lined up

Question 13

What can you do to make a electromagnetic more powerful?

Answer 13

Winding the wire into a long coil, each loop makes it stronger

Question 14

Devices that contain an electromagnet?

Answer 14

Radios, telephones , headphones

Question 15

How are speakers alike and different ?

Answer 15

They both use electromagnets.
Loudspeaker electrical energy into sound,
Microphone -sound into electrical energy or signals

Question 16

How does a speaker work?

Answer 16

Diaphragm is part of the loudspeaker that vibrates to make sound

Question 17

Parts needs to build a speaker, microphone, generator, and electric motor?

Answer 17

A metal core with wire wrapped around

Question 18

Motor

Answer 18

A device that changes electrical energy into mechanical energy

Question 19

Turbine

Answer 19

A fan that steam, wAter and air is used to turn blades and that is the mechanical energy used for the generator

Question 20

Microphone

Answer 20

A device that uses magnet to convert sound into electrical signals

Question 21

Alternating currents

Answer 21

Food is why direction and then flow is the opposite direction