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Matter expands when it gets hotter and contracts when it cools?
Wiki User
∙ 13y ago
The explanation of Thermal Expansion.
Wiki User
∙ 13y ago
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How does mercury in thermometer rise and fall?
When it heats, it expands and then it risesup the narrow glass tube. when it cools, it contracts and falls down. gallileo made one that used a bubble in water and traveled up and down a swell
How do thermometers measure temperatures?
they measure temperature using mercury (the liquid stuff inside the tube). Mercury expands when its hot and gets smaller when its cold.
Why a gas cools when it expands at high pressure?
as preasure increase tempreture decrease
Which 3 solids contract on cooling?
I don't know someone answer me please !
What happens to matter when it gets hot?
A matter expands on heating. It gets less density on expanding. But t gets more vlume but the weight remains the same. It also becomes more active ( moves more) for when it cools down it slows down in its consistent movement.
What are examples of thermal expansion and contraction?
the Mercury in a thermometer expands when heated and contracts when the temperature cools down.
What are the disadvantages of rubber tires?
When rubber is heated it expands and when it cools it contracts.
Why air expands as it cools?
Air doesn't expand when it cools it contracts. any easy way to prove this point is to blow up a balloon put it in the fridge and leave it there for a while it will become smaller take it out of the fridge and it will get bigger again. Air expands as it heats and contracts as it cools.
Why is Mercury used in the thermometer?
As the Mercury is heated it expands and as is cools it contracts. It is used because it also heats and cools in even intervals that are easy to track in a metric system.
Why mercury used in the thermometer?
As the Mercury is heated it expands and as is cools it contracts. It is used because it also heats and cools in even intervals that are easy to track in a metric system.
Why does the light fixture crackle when you turn off the lights?
the fixture expands from the heat generated by the bulb. so it contracts as it cools
Why would a soap bubble shrinks and vice versa when it takes from warm room to cold one?
This is the result of the volume of a gas being related to the temperature of a gas. The gas in the bubble expands when it warms and contracts when it cools. Similarly, the air in the room expands when it warms and contracts when it cools. So if the air in the bubble is warmer than the air in the room, the bubble gets bigger.
When a parcel of air moves upward it expands and cools?
When a parcel of air moves upward, it expands and cools due to the altitude.
Railway can expand and recoil?
Yeah! Railroad tracks are made with spaces in between them so when it gets hot it won't buckle up and ruin the track when it expands. When it cools down, it contracts
What happens when air rises?
It expands and cools
In gases and liquids heat moves by convection?
yes, the hotter fluid matter rises and when it cools it falls, hence creating a convection current.
When matter other than water cools it does it expand or contract?
Metals fit this criteria. 2) that's why they put gaps in train tracks, otherwise you'd get bent tracks when it expanded. when concrete does this and it has no room to expand, it often cracks 2) almost anything fits in this criteria but water expands when it freezes as you probably have seen when you freeze a water bottle that was full to the top and you get a cracked bottle. it's also why people put bags of water in their shoes and put them in the freezer to make them bigger
