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WorksheetsSpecific heat capacity
Total questions: 13
Worksheet time: 33mins
Name
Class
Date
1.
___________ is measured by the unit Joules.
a)
Heat energy
b)
Temperature
c)
Specific heat
2.
What is the formula to calculate heat energy required to raise the temperature of any substance?
a)
Q=mc∆t
b)
Q=mc
c)
Q= ½mv
d)
m=QC
3.
A high specific heat means...
a)
It heats up quickly with energy added
b)
It requires more energy to change temperature
4.
The symbol for specific heat is .......
a)
c
b)
Q
c)
m
d)
t
5.
What unit do you use to measure Thermal Energy?
a)
J/Kg ºC
b)
Kg
c)
ºC
d)
J
6.
What is Specific Heat?
a)
The amount of thermal energy required to increase the temperature of 1kg of a material by 1°C.
b)
The amount of radiant energy required to increase the temperature of 1kgof a material by 1°C
c)
The amount of energy required to increase the temperature of 1kgof a material by 1°C.
d)
The amount of friction required to increase the temperature of 1kgof a material by 1°C.
7.
The specific heat of platinum is 0.133 J/g°C. How much heat(Q) is released when a 10 g piece of platinum cools from 100°C to 50°C?
a)
66.5 J
b)
665 J
c)
0.0266 J
d)
0.665 J
8.
20 g of water. specific heat of water is 4.18 J/g°C. temperature changes from 25° C to 20° C, how much heat energy (Q) moves from the water to the surroundings?
a)
418 J
b)
209 J
c)
83 J
d)
4.18 J
9.
The specific heat(c) of copper is 0.39 J/g °C. What is the temperature change(∆t) when 100 Joules of heat(Q) is added to 20 grams?
a)
12.82 °C
b)
24.12°C
c)
1.95 °C
d)
5128 °C
10.
10 kg of aluminium is heated from 120C to 220C. How much energy is needed?
a)
8 970 000 J
b)
897 J
c)
8970 J
d)
89 700 J
e)
897 000J
11.
1kg of water cools from 100C to 20C. What is true
a)
It gives out 336 kJ
b)
It gives out 336 J of energy
c)
It takes in 336 kJ
d)
It takes in 336 J
e)
It doesn't take in or give out any energy
12.
Which of the following is NOT true about heat?
a)
Heat moves from hot to cold
b)
Heat is a form of energy
c)
Heat cannot be transferred
d)
Heat makes molecules speed up
13.
In heat capacity equations, what does the triangle represent?
a)
Temperature
b)
energy
c)
mass
d)
change in
e)
change in temp
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