Physics, 31.01.2020 11:48 alahewett2043

Classify the statements as correct or incorrect.

a thermometer measures
the average kinetic energy
of a substance.

heat is a form of energy.

heat flows from a colder
substance to a hotter
substance.

convection occurs only
in liquids and gases.

all substances radiate heat.

our body temperature is
always equal to the
temperature around us.

Answers: 1

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Answers

Answer from: reich9357

Explanation:

A thermometer does measure the temperature of a body and not the heat. It is known that temperature is a measure of average kinetic energy.

Therefore, the statement a thermometer measures the average kinetic energy of a substance is correct.

Heat is a form of energy as it can make a colder substance become hot and it moves from one place to another. Thus, the statement heat is a form of energy is correct. Also, heat flows from hotter substance to colder substance. Hence, the statement heat flows from a colder substance to a hotter substance is correct.Convection is a property of fluids or gases which makes less denser (hot) material to rise and more denser (colder) material to sink.

Therefore, the statement convection occurs only in liquids and gases is correct.

All substances radiate heat is an incorrect statement. For example, a thermos bottle does not radiate heat.Temperature of our body is about 98.4 degree celsius and hence we can conclude that the statement our body temperature is always equal to the temperature around us is incorrect.

Answer from: spooderfaxy7813

Correct:

-Heat is a form of energy.

-Heat flows from a colder substance a hotter substance.

-Convection occurs only in liquids and gases.

-All substances radiate heat.

Incorrect:

-Our body temperature is always equal to the temperature around us.

-A thermometer measures the average kinetic energy of a substance.

Explanation:

I just took the test!! :)

Answer from: Quest

i don’t know what the answer is i wish i

Answer from: Quest

dec 23, 2016 - a load of bricks weighing 680 n a distance of 10 m across a parking lot. if if the worker pushes the cart with a constant force of 209 n, what work= force x distance = 220 n x 10 m = 2200 n.m = 2200 j i don't know where the person got it from, but the initial part, work= force x distance me.

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Classify the statements as correct or incorrect.

a thermometer measures
the averag...