Magnets. Magnets are everywhere. Earth! In fact you live on the biggest magnet around …. If you...

18
Magnets

Transcript of Magnets. Magnets are everywhere. Earth! In fact you live on the biggest magnet around …. If you...

Page 1: Magnets. Magnets are everywhere. Earth! In fact you live on the biggest magnet around …. If you have ever used a computer, microwave oven, or stereo speakers,

Magnets

Page 2: Magnets. Magnets are everywhere. Earth! In fact you live on the biggest magnet around …. If you have ever used a computer, microwave oven, or stereo speakers,

Magnets are everywhere.

Earth!

In fact you live on the biggest magnet around….

If you have ever used a computer, microwave oven, or stereo speakers, you have used magnets!

Page 3: Magnets. Magnets are everywhere. Earth! In fact you live on the biggest magnet around …. If you have ever used a computer, microwave oven, or stereo speakers,

Magnet Facts 1. Magnets are made

from a rock called magnetite or lodestone.

2. Magnetite attracts iron and steel.

Page 4: Magnets. Magnets are everywhere. Earth! In fact you live on the biggest magnet around …. If you have ever used a computer, microwave oven, or stereo speakers,

3. Magnets have two poles - the North Pole and the South Pole. 4. On a bar magnet the poles are on the ends.

Page 5: Magnets. Magnets are everywhere. Earth! In fact you live on the biggest magnet around …. If you have ever used a computer, microwave oven, or stereo speakers,

5. Magnets are strongest at the poles.

Page 6: Magnets. Magnets are everywhere. Earth! In fact you live on the biggest magnet around …. If you have ever used a computer, microwave oven, or stereo speakers,

6. Attract means to pull something to you. Magnets pull things made of iron and steel.

Page 7: Magnets. Magnets are everywhere. Earth! In fact you live on the biggest magnet around …. If you have ever used a computer, microwave oven, or stereo speakers,

7. Opposites Attract

The North Pole is attracted to the South Pole.

The South Pole is attracted to the North Pole.

Page 8: Magnets. Magnets are everywhere. Earth! In fact you live on the biggest magnet around …. If you have ever used a computer, microwave oven, or stereo speakers,

8. Repel means to push away. A North Pole repels another North Pole.

Page 9: Magnets. Magnets are everywhere. Earth! In fact you live on the biggest magnet around …. If you have ever used a computer, microwave oven, or stereo speakers,

9. A force is a push or a pull.

10. A magnetic force is the pulling force of a magnet.

Page 10: Magnets. Magnets are everywhere. Earth! In fact you live on the biggest magnet around …. If you have ever used a computer, microwave oven, or stereo speakers,

Find items that are attracted to

magnets.

Page 11: Magnets. Magnets are everywhere. Earth! In fact you live on the biggest magnet around …. If you have ever used a computer, microwave oven, or stereo speakers,

10. A compass uses a magnet to tell direction.

A compass has a magnet inside that moves the

arrow. The arrow on a

compass always points north.

Page 12: Magnets. Magnets are everywhere. Earth! In fact you live on the biggest magnet around …. If you have ever used a computer, microwave oven, or stereo speakers,

12. Magnets can have different sizes and

shapes.

Page 13: Magnets. Magnets are everywhere. Earth! In fact you live on the biggest magnet around …. If you have ever used a computer, microwave oven, or stereo speakers,

11. A magnet’s force can pull through other objects.

Try this:

1. Fill a clear cup with water.

2. Put a paper clip inside the cup of water.

3. Use a magnet on the outside of the cup.

Can you move the paper clip?

Page 14: Magnets. Magnets are everywhere. Earth! In fact you live on the biggest magnet around …. If you have ever used a computer, microwave oven, or stereo speakers,

What did you learn?

Magnet Review

1. Magnets are made from ______________.

a. magnetite - lodestone

b. vitamins with iron

c. a compass

2. Magnets attract things made from ___________.

a. rocks

b. iron

c. fish

Page 15: Magnets. Magnets are everywhere. Earth! In fact you live on the biggest magnet around …. If you have ever used a computer, microwave oven, or stereo speakers,

3. Attract means ______________.

a. a push or a pull

b. to push something away from you

c. to pull something to you

5. Magnets have 3 poles.

a. True

b. False

4. A magnet’s force can pull through other objects.

a. True

b. False

Page 16: Magnets. Magnets are everywhere. Earth! In fact you live on the biggest magnet around …. If you have ever used a computer, microwave oven, or stereo speakers,

6. On a bar magnet the poles are ____________.

a. in the middle

b. on the ends

7. Repel means ___________.

a. to push something away from you

b. to pull something to you

c. A push or a pull

8. Opposites attract - North Pole is attracted to the

South Pole.

a. True

b. False

Page 17: Magnets. Magnets are everywhere. Earth! In fact you live on the biggest magnet around …. If you have ever used a computer, microwave oven, or stereo speakers,

9. A magnetic force is the ____________.

a. pushing force of a magnet

b. pulling force of a magnet

11. A compass uses a magnet to tell direction.

a. True

b. False

10. The North Pole is attracted to ___________.

a. Santa Claus

b. another North Pole

c. the South Pole.

Page 18: Magnets. Magnets are everywhere. Earth! In fact you live on the biggest magnet around …. If you have ever used a computer, microwave oven, or stereo speakers,

12. Name three things that a magnet is attracted to. Did you think about these items?