Question 1

What is the primary difference between heat and temperature?

Accepted Answer

Temperature is the intensity of heat in an object.

Answer

Heat is a measure of temperature.

Answer

Heat and temperature are the same.

Answer

Temperature depends on mass, while heat does not.

Question 2

If water freezes at 0°C, what is the equivalent temperature in Kelvin?

Accepted Answer

273 K

Answer

32 K

Answer

100 K

Answer

0 K

Question 3

Which formula is used to convert Celsius to Fahrenheit?

Accepted Answer

F = C × 9/5 + 32

Answer

F = C + 273

Answer

F = C - 32

Answer

F = 5/9 C - 32

Question 4

What is the boiling point of water in the Fahrenheit scale?

Accepted Answer

212°F

Answer

32°F

Answer

100°F

Answer

0°F

Question 5

Which thermometer is best suited for measuring body temperature?

Accepted Answer

Digital thermometer

Answer

Infrared thermometer

Answer

Alcohol thermometer

Answer

Mercury thermometer

Question 6

If a thermometer reads 100°C, what would be its reading in Fahrenheit?

Accepted Answer

212°F

Answer

373°F

Answer

32°F

Answer

100°F

Question 7

Which type of thermometer should you use to measure very low temperatures, such as -50°C?

Accepted Answer

Alcohol thermometer

Answer

Mercury thermometer

Answer

Digital thermometer

Answer

Clinical thermometer

Question 8

What is the formula to convert Celsius to Kelvin?

Accepted Answer

K = C + 273

Answer

K = C - 273

Answer

K = C × 9/5 + 32

Answer

K = 4/5 C

Question 9

If a temperature is 25°C, what is it in Kelvin?

Accepted Answer

298 K

Answer

273 K

Answer

250 K

Answer

308 K

Question 10

Why is it important to choose the correct thermometer for specific situations?

Accepted Answer

To get an accurate and safe temperature reading

Answer

Because all thermometers are equally suitable for any use

Answer

To save time

Answer

To avoid reading errors

Question 11

What happens to the molecules of a substance as it gains heat?

Accepted Answer

Molecules speed up and move further apart

Answer

Molecules slow down and move further apart.

Answer

Molecules slow down and move closer together.

Answer

Molecules speed up and move closer together

Question 12

Which of the following temperature scales does NOT use the degree symbol in its notation?

Accepted Answer

Kelvin

Answer

Fahrenheit

Answer

Celsius

Answer

Réaumur

Question 13

If the temperature is 32°F, what is it in Celsius?

Accepted Answer

0°C

Answer

100°C

Answer

273°C

Answer

-32°C

Question 14

What is an appropriate thermometer to use for outdoor weather measurements in extreme cold?

Accepted Answer

Alcohol thermometer

Answer

Digital thermometer

Answer

Clinical thermometer

Answer

Mercury thermometer

Question 15

Which thermometer is most suitable for measuring the temperature of a very hot oven?

Accepted Answer

Oven-safe thermometer

Answer

Mercury thermometer

Answer

Alcohol thermometer

Answer

Clinical thermometer

Question 16

What is the equivalent of 0 K in Celsius?

Accepted Answer

-273°C

Answer

0°C

Answer

273°C

Answer

100°C

Question 17

Why should a thermometer be cleaned before and after use?

Accepted Answer

To avoid contamination and ensure accurate readings

Answer

To reduce mercury evaporation

Answer

To avoid changing the temperature reading

Answer

To make it look shiny

Question 18

What is the relationship between the Celsius and Réaumur scales?

Accepted Answer

°C/5 = °Re/4

Answer

°C/5 = °Re/9

Answer

°C/4 = °Re/5

Answer

°C/9 = °Re/5

Question 19

What should you do if you are using a glass thermometer and the temperature you need to measure is very high?

Accepted Answer

Choose a thermometer designed for high temperatures, like an oven-safe thermometer

Answer

Shake the thermometer vigorously

Answer

Use the thermometer as usual

Answer

Place the thermometer in water first

Question 20

What is absolute zero?

Accepted Answer

The temperature at which molecular motion theoretically stops

Answer

The freezing point of water in Fahrenheit

Answer

The boiling point of water

Answer

The average temperature of Earth

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