Unit 5

Question 1

Magnets

Answer 1

Can attract or repel another magnetic substances
Attract ferromagnetic substances

Question 2

Ferromagnetic substances

Answer 2

Attracted to magnets
(NIC) nickel, iron and cobalt

Question 3

Non magnetic substances

Answer 3

Not attracted by magnets
Ex: aluminium, copper, lead, plastic, organic compound

Question 4

Magnetic field

Answer 4

Strongest at poles
North (red) - South (blue)

Space around a magnet (subjects other objects around to a force of attraction or repulsion)
North (out of) - South (into)

Compass will point in the same direction of magnetic lines

Question 5

Domains

Answer 5

Substances are composed of domains (represented by arrows) each domain is a tiny magnet

When aligned, substance is magnetic (arrows point in same direction)

Question 6

Going in (Current Direction)

Answer 6

Look at paper ⬆️
Clockwise (right hand thumb rule)

Conventional Current

Question 7

Going out (Current Direction)

Answer 7

Look at the paper ⬇️
Counter-Clockwise (right hand thumb rule)

Conventional current