IGCSE Physics F/M P2 part 2

Which is a unit of wavelength?

• A hertz

• B metre

• C metre per second

• D second

• A

• B

• C

• D

• A

• B

• C

• D

• A

• B

• C

• D

• A

• B

• C

• D

In which pair are both materials magnetic?

• A aluminium and copper

• B copper and iron

• C iron and steel

• D steel and aluminium

Which methods could be used to demagnetise a magnet?

method 1: place it in an east-west direction and hammer it

method 2: place it in an east-west direction and heat it until it is red hot

method 3: pull it slowly from a coil that is carrying an alternating current

method 4: put it slowly into a coil that is carrying a direct current

• A methods 1, 2 and 3

• B methods 2, 3 and 4

• C methods 1 and 2 only

• D methods 3 and 4 only

Which produces an electromotive force (e.m.f.)?

• A a battery

• B a filament lamp

• C a resistor

• D a spring balance

• A

• B

• C

• D

• A

• B

• C

• D