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PLEASE HELP ME WITH SOME QUESTIONS


1. What is a convection current?

2. How do thermometers work?

Sagot :

Answer:

1.a current in a fluid that results from convection.

2.measures temperature through a glass tube sealed with mercury that expands or contracts as the temperature rises or falls.

Explanation:

lemonadeandsugarnade

Answer:

1.A convection current is a process that involves the movement of energy from one place to another. It is also called convection heat transfer. What is the reason that makes you feel hotter when placing hands above a campfire or when sitting next to it? Or, why is the movement of liquid so rapid when water is boiled in a pot? These things happen as a result of the Convection Currents.

Explanation:

2. A thermometer measures temperature through a glass tube sealed with mercury that expands or contracts as the temperature rises or falls. ... As temperatures rise, the mercury-filled bulb expands into the capillary tube. Its rate of expansion is calibrated on the glass scale.

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