Grade 10 · Science · Chemistry

10th grade The four laws of thermodynamics in everyday life worksheet

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The four laws of thermodynamics in everyday life

Grade 10 Science Worksheet

NameDate

Circle the best answer, or write your answer on the line.

A gas is squeezed with 450 J of work done on it, and it gives off 600 J of heat. What is the change in its internal energy, Bo?
A gas is squeezed with 250 J of work done on it, and it gives off 90 J of heat. What is the change in its internal energy, Esme?
3.
Ice melts in a warm room. What happens to the water's entropy, Kira?
- It decreases
- It increases
- It stays at zero
4.
A drop of food coloring spreads through still water by itself. Which law does this show, Luz?
- The second law
- The zeroth law
- The third law
5.
Why does a refrigerator need to be plugged in, Milo?
- Cold has to be made from electricity
- Moving heat from cold to hot takes work
- Food gives off cold
6.
Hot soup sits in a cool kitchen. Which way does heat flow, Noah?
- No way: they're apart
- From the room to the soup
- From the soup to the room
7.
What happens to the universe's entropy during a spontaneous change, Pia?
- It decreases
- It drops to zero
- It increases
8.
What is absolute zero, Ren?
- 0 K, the lowest temperature
- 0 °C, where water freezes
- 100 K, the coldest gas
9.
What does the third law say about a perfect crystal at 0 K, Tala?
- Its entropy is at a maximum
- Its entropy is zero
- It turns into a gas
10.
Why does a perfect crystal at 0 K have zero entropy, Zee?
- Its particles have vanished
- It has the most freedom to move
- Its particles have one arrangement

The four laws of thermodynamics in everyday life. Every version has 10 questions, and the answer key prints on the second page.

I can state the zeroth law and explain how a thermometer works.
I can use the first law, ΔU = Q − W, and say energy changes form but is never used up.
I can use the second law: heat flows hot to cold, and the universe's entropy grows.
I can use the third law and convert temperatures to kelvins above absolute zero.

Standard: supports HS-PS3-4

thermal equilibrium: Equal temperatures, so no net heat flows

internal energy, U: The total energy of a system's particles

entropy: A measure of disorder, or how spread out energy and particles are

absolute zero: 0 K, −273.15 °C

isolated system: One that swaps no energy or matter with its surroundings

Your child added the work. Work the system does uses up some of the heat it took in, so ΔU = Q − W.

Your child added the heat the gas gave off. Heat leaving the system lowers its energy, so subtract it.

Your child subtracted 273.15. To go from °C to kelvins, add 273.15; kelvins are never negative.

What is the most common mistake with the four laws of thermodynamics in everyday life?

Your child added the work. Work the system does uses up some of the heat it took in, so ΔU = Q − W.

Are these 10th grade science worksheets free to print?

Yes. All 6 printable versions at each level are free to print, with the answer key, and no account is needed.

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