Magnetism

Question 1

describe some common properties of magnets

Answer 1

*made of metal (usually iron)
*two poles
*attract metals
*repel poles of the same direction

Question 2

describe how to plot the magnetic field using plotting compasses

Answer 2

north to south

Question 3

describe how to make an electromagnet including how to make it stronger

Answer 3

1) Wrap in wire
2) Add more coils to increase the amount of current going through it

Question 4

list some common uses of electromagnets

Answer 4

bells, speakers, circuit breakers, buzzers, MRI scans

Question 5

what is a test to see the size of a magnetic field

Answer 5

You can see a magnet’s magnetic field by scattering tiny iron filings around it. The iron filings form a pattern that reveals the lines of the magnetic field.