IGCSE - Thermal Expansion
Authored by tyas ajeng
Physics
7th - 9th Grade
Used 36+ times
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A wooden wheel can be strengthened by putting a tight circle of iron around it.
Which action would make it easier to fit the circle over the wood?
cooling the iron circle
heating the iron circle
heating the wooden wheel and cooling the iron circle
heating the wooden wheel but not heating or cooling the iron circle
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which one shows the relative order of thermal expansion of solids, liquids and gases?
solid > liquids > gases
solid > gases > liquids
gases > solids > liquids
gases > liquids > solids
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The diagram shows electricity cables being put up on a warm day. The cables are left loose
between the poles, as shown in the diagram.
Why are the cables left loose?
They will expand on very warm days.
They will expand on cold days.
They will contract on very warm days.
They will contract on cold days.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A glass bottle has a metal cap. The cap fits very tightly and is difficult to remove.
The cap and the neck of the bottle are dipped in a bowl of hot water. The cap can be removed more easily.
What happens to allow the cap to be removed more easily from the bottle?
The cap contracts.
The glass bottle contracts.
The cap expands.
The glass bottle expands
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The diagram shows the shape of the bimetallic strip before and after heating.
Which statement is correct?
Metal P expands more than metal Q on heating.
Metal P contracts more than metal Q on heating.
Metal Q expands more than metal P on heating.
Metal Q contracts more than metal P on heating.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When a bridge is built, a gap is left between each concrete slab.
Why are these gaps left?
The gaps contract on cold days.
The gaps expand on warm days.
Concrete contracts on warm days.
Concrete expands on warm days.
7.
OPEN ENDED QUESTION
5 mins • Ungraded
In terms of molecules, explain why solids expand when they are heated
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