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WorksheetsSpecific Heat Capacity
Total questions: 13
Worksheet time: 13mins
Name
Class
Date
1.
What is the purpose of having water in the hole for the thermometer?
a)
To prevent air gaps between the metal and the thermometer.
b)
To increase the accuracy of temperature readings.
c)
To cool down the metal block.
d)
To create a barrier between the heater and the block.
2.
How long should the temperature be recorded?
a)
Every minute for 10 minutes.
b)
Every minute for 5 minutes.
c)
Every 10 seconds for 1 minute.
d)
Every 5 seconds for 5 minutes.
3.
What is the equation for specific heat capacity?
a)
Energy (or heat transferred) = mass × SHC × temperature change
b)
SHC = energy ÷ (mass × temperature change)
c)
Energy = mass × SHC ÷ temperature change
d)
SHC = energy × (mass ÷ temperature change)
4.
How can power be measured accurately?
a)
Using a dual meter to count flashes in a certain time period.
b)
Using a voltmeter and an ammeter to measure current and voltage.
c)
Using a stopwatch to measure the time it takes to heat up the block.
d)
Using a balance to measure the mass of the block.
5.
What is the unit for specific heat capacity?
a)
Joules per kilogram per degree Celsius.
b)
Watts per second.
c)
Kilograms per degree Celsius.
d)
Joules per second.
6.
What is the correct equation for power?
a)
Power = current × voltage.
b)
Power = energy ÷ time.
c)
Power = mass × temperature change.
d)
Power = SHC × time.
7.
What should be ignored when measuring power using a voltmeter and an ammeter?
a)
The voltage shown on the powerpack.
b)
The current flowing through the heater.
c)
The potential difference (PD) or voltage.
d)
The accuracy of the voltmeter reading.
8.
What is the correct value of power in the experiment?
a)
34.7 watts (W).
b)
63 joules per second.
c)
1900 joules in 30 seconds.
d)
10 volts.
9.
What should be plotted on the y-axis of the graph?
a)
Temperature.
b)
Time.
c)
Energy.
d)
Power.
10.
How can specific heat capacity be calculated using the graph?
a)
SHC = (power × time) ÷ (mass × temperature change).
b)
SHC = (time ÷ temperature change) × (power ÷ mass).
c)
SHC = (energy ÷ mass) × temperature change.
d)
SHC = (mass × temperature change) ÷ power.
11.
Why might the calculated specific heat capacity be higher than the actual value?
a)
Energy loss to the surroundings.
b)
Inaccurate temperature readings.
c)
Insufficient power supply.
d)
Incorrect mass measurement.
12.
What is one solution to reduce energy loss in the experiment?
a)
Insulate the block using foam on the sides and bottom.
b)
Increase the power supply voltage.
c)
Use a different material for the block.
d)
Reduce the time taken for the experiment.
13.
What can be done to compare the specific heat capacities of different materials?
a)
Repeat the experiment with different materials.
b)
Change the mass of the block.
c)
Increase the temperature change.
d)
Use a different equation for specific heat capacity.
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