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Why can a dented table-tennis ball often be mended by warming in hot water?
As the internal air is warmed it expands and pushes out the dint.
Why would heating a hot air balloon make the balloon rise?
Heating the air inside the balloon makes it less dense than the surrounding air, causing it to become buoyant and rise. As the air inside the balloon is heated, it expands and its volume increases. This expansion pushes the surrounding air down, creating a lift force that allows the balloon to ascend.
Why does a balloon shoot around the room when it is allowed to deflate?
The air escaping out of the nozzle has momentum and creates a force on the balloon. According to the laws of motion, every action has an equal and opposite reaction; the balloon pushes the air out bacwards and the air pushes the balloon forward.
How power cylinder connection rod and cylinder block works in stirling engine?
The power cylinder works on the principle that heated air expands, and cooled air contracts. After the displacer moves the air to the hot side, the air heats up and expands (after a small delay) and pushes out the power cylinder, which in turn pushes the connecting rod and the crankshaft. When the displacer has moved the air to the cold side, the air contracts, pulling the power cylinder down, pulling the crankshaft. The power cylinder is 90 degrees 'behind' the displacer, due to the delay in expanding of the air after heating.
How do the lungs move?
The diaphragm is a strong wall of muscle on the bottom of the chest cavity. As this wall of muscle expands downward, a vacuum is created which pulls air into the lungs. As the diaphragm returns to it's original position, air is pushed out of the lungs.
What is the boundary that forms where warm air mass into pushes a colder air mass called?
warm front
When cold air moves in and pushes warm air up bringing stormy weather is called?
Persiptaton
In exercise are you supposed to breathe in or breathe out as you exert your muscles?
when you breath in your diaphragm muscle expands your lungs to take in air. when you breath out your diaphragm muscle pushes on your lungs to let out the air.
The sound produced when air ground lightning rapidly expands and contracts is called?
Thunder.
The sound produced when the air around lightning rapidly expands and contracts is called .?
Thunder
When cold air moves toward warm air it pushes the warm air?
I pushes the warm air upwards.
How does the air thermoscope work?
The air thermoscope works by using the expansion and contraction of air due to changes in temperature. As the air warms up, it expands and pushes a liquid (usually colored alcohol) up a narrow tube. This change in liquid level indicates the temperature change.
