Thermal Expansion- Understand the concepts
Revision
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Topics of this game:
- Three states of matter are
- When a matter is heated the molecules gain heat energy. vibrate faster so the ........
- When a matter is cooled, the molecules lose heat energy, vibrate slowly so the ........
- Expansion joints in bridges: Metal and concrete expand due to heat thus the joint gap size decreases during summer.
- Cables running over pylons become tight and may snap during winter. This is because, the cables
- When a liquid is heated in a pan, the volume drops below the initial level after a short time. Then the volume of water increases. Why this is so?
- The liquid in a thermometer expands or contracts due to high or low temperature respectively.
- Water shows anomalous behaviour when it is cooled .........
- Water shows anomalous behaviour when it is heated .........
- Anomalous behaviour of water
- Compare the size of thermal expansion
- Expansion of gas is more because
- Heating a gas in a tight container will have no room for expansion, hence this
- Hot air balloons can float because the air inside the balloon is
- Bursting of vehicle tyres is due to
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