Thermal Expansion - A Review
Revision of 'Thermal expansion of solids, liquids & gases'
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Topics of this game:
- Picture shows a metal ball and ring. How can you make the metal ball to pass through the metal ring?
- When a solid is heated, the particles gain heat energy
- Expansion joints in bridges and sidewalks are used to allow expansion & contraction of the metal joints, thus preventing cracking of the concrete.
- What happens to the gaps in rails during winter?
- Compare the density of the mercury in the thermometer in picture 2 with that of picture 1.
- Picture shows a thermometer at two different temperatures T1 and T2. Which thermometer will have more energy and more molecular separation? Why?
- How do you explain stage 3 based on the molecular separation with that of stage 1?
- A shaft is immersed in liquid nitrogen at a temperature of -200 degree Celsius. Why it is done?
- State the temperature range water behaves abnormally when it is cooled from room temperature. State what happens?
- Compare the volume and density of the water at - 6 degree Celsius and at 4 degree Celsius.
- In summer, when a car is left outside for a long time, blow-out of tyres happen. Why it occurs?
- In which matter the thermal expansion is more ?
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