Physics Paper 2 Part 2 Revision
Topic 10
10.1
A positively charged nucleus surrounded by negative electrons.
10.2
10.3
Series Circuit: Current is same everywhere and no branches
Parallel Circuit: Branches, current splits but voltage is the same
10.5/10.6
Measured in volts
Energy transferred per unit charge measured in Joules per Coulomb
Energy transferred = charge moved x p.d (E=QV)
, Topic 12
12.1/12.2
Like poles repel and unlike poles attract
Magnetic materials include Cobalt, Nickel and Iron
12.3
Permanent Magnets: Always magnetic
Induced Magnets: Not permanently magnetic, instead temporary.
12.4/12.5
12.6
Topic 13
13.5/13.6
AC in rst coil causes changing magnetic eld which induces a current in the second coil.
Has to be AC as changing current causes moving magnetic eld so current induced.
Step Up Transformer: More turns on 2nd coil to increase voltage
Step Down Transformer: Fewer turns on 2nd coil to decrease voltage
13.7
fi fi fi
Topic 10
10.1
A positively charged nucleus surrounded by negative electrons.
10.2
10.3
Series Circuit: Current is same everywhere and no branches
Parallel Circuit: Branches, current splits but voltage is the same
10.5/10.6
Measured in volts
Energy transferred per unit charge measured in Joules per Coulomb
Energy transferred = charge moved x p.d (E=QV)
, Topic 12
12.1/12.2
Like poles repel and unlike poles attract
Magnetic materials include Cobalt, Nickel and Iron
12.3
Permanent Magnets: Always magnetic
Induced Magnets: Not permanently magnetic, instead temporary.
12.4/12.5
12.6
Topic 13
13.5/13.6
AC in rst coil causes changing magnetic eld which induces a current in the second coil.
Has to be AC as changing current causes moving magnetic eld so current induced.
Step Up Transformer: More turns on 2nd coil to increase voltage
Step Down Transformer: Fewer turns on 2nd coil to decrease voltage
13.7
fi fi fi
