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WorksheetsThermal Expansion
Total questions: 7
Worksheet time: 9mins
Name
Class
Date
1.
What happens to the molecules of a solid when it is heated?
a)
Slow down
b)
Speed up
c)
Don't change speed
d)
Shrink
2.
Choose the symbol which denotes the 'coefficient of expansion'
a)
θ
b)
ρ
c)
Σ
d)
α
3.
What does the following symbol 'Δ' denote?
a)
Sum of
b)
Coefficient of Expansion
c)
Change in
d)
Temperature
4.
Select the correct formula to calculate linear change in length...
a)
ΔL = LαΔT
b)
ΔT = ΔL/Lα
c)
σ = F/A
d)
ε = ΔL/L
5.
Calculate the change in length of a 100mm aluminium bar that has increased in temperature by 55⁰C.
Take the coefficient of expansion to be 25 x 10-6
Take the coefficient of expansion to be 25 x 10-6
a)
0.258mm
b)
0.1375mm
c)
1.23mm
d)
1.37mm
6.
Select the correct formula to calculate change in temperature.
a)
ΔL = LαΔT
b)
α = ΔL/LΔT
c)
ΔT = ΔLαL
d)
ΔT = ΔL/Lα
7.
Calculate the change in temperature of an 900mm aluminium bar, that has increased in length to 901.035mm.
α = 25 x 10-6
α = 25 x 10-6
a)
12oC
b)
34.5oC
c)
57oC
d)
46oC
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