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What makes mercury in a thermometer go up and down?
Change in temperature is what cause the Mercury to expand up (hotter) or shrink down (colder).
Does a rock expand or has contact with an increase in heat?
Yes, when a rock is heated, it expands due to an increase in temperature. As the rock cools down, it contracts. This expansion and contraction can lead to the formation of cracks and fractures in the rock over time.
If hot air rises why is it cooler in the mountains?
Temperature decreases with altitude due to the adiabatic lapse rate, where the atmosphere cools as it expands with elevation. This principle applies in mountains where the air rises, expands, and cools, resulting in lower temperatures at higher altitudes.
How do themometers work?
Thermometers work by measuring temperature using a temperature-sensitive component, like a liquid, gas, or a digital sensor. When the temperature changes, the component inside the thermometer expands or contracts, and this change is indicated on a scale as a temperature reading.
How does the liquid in a thermometer move up and down?
When the liquid in the thermometer gets warmer it expands. This means its volume increases. The only place for the extra volume to go is up the tube, so the level of liquid rises. When the liquid gets colder it contracts (reduces in volume) so it moves back down the tube. See http://www.energyquest.ca.gov/how_it_works/thermometer.html
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 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.
What makes mercury in a thermometer go up and down?
Change in temperature is what cause the Mercury to expand up (hotter) or shrink down (colder).
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.
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
