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Paper 1
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Specific heat capacity
place
beaker
on
balance
and press 0
add
oil
to beaker and record mass of
oil
place thermometer and
immersion heater
into
oil
read starting
temperature
of the
oil
wrap
beaker
in insulating foam to reduce
thermal energy transfer
to surroundings
connect joule meter and
power pack
to
immersion heater
Leave setup for
30mins
read total number of joules of energy that passed into the immersion
heater
and final temperature of the
oil
specific
heat capacity
calculation
Thermal insulation
Place
small
beaker
inside
large
beaker
use a
kettle
to boil water
transfer
80cm3
hot water into the small beaker
use
cardboard lid
for the big beaker, lid should have a
hole
for thermometer
place thermometer through the hole, bulb of thermometer should be in
hot
water
record
starting
temperature of water and start
stopwatch
record temperature of water every
3mins
for
15mins
repeat experiment using
same
volume of hot water, using an
insulating
material to fill gap between two beakers
I/V characteristics of components
Make
circuit
: use
voltmeter
to read p.d across the resistor
use
ammeter
to read current through the resistor
record values in a
table
adjust variable resistor and record new readings on
voltmeter
and
ammeter
, repeat step 1-3 several times
switch
direction
of battery to
reverse
direction of potential difference
voltmeter and ammeter should have
negative
values
continue taking several readings of p.d and current
plot an
IV
graph: should be
straight
line passing 0 as they are directly proportional to each other
Replace resistor for any other component
Resistance
attach wire to
metre ruler
using
tape
connect wire to
rest
of circuit using
crocodile clips
move crocodile clips further apart to increase
length
of wire in the circuit, measure
resistance
in the circuit
plot graph: resistance is directly
proportional
to length of wire
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