Temperature Quiz

During a science project, the thermometer must never go over 280 K or below 275 K. Today, the thermometer shows 274 K. Which statement is correct?

1. The thermometer shows no reading.
2. The temperature is too low for the project.
3. The temperature is too high for the project.
4. The temperature is within the safe range.

Answer: (b) The temperature is too low for the project.

Your teacher sets the classroom thermostat to 21°C. If the thermometer goes 2 degrees higher, and then 1 degree lower, what is the final temperature reading?

1. 23°C
2. 22°C
3. 20°C
4. 21°C

Answer: (c) 20°C

A cold room is at −3°C. It gets 4 degrees colder, then 2 degrees warmer. What does the thermometer show now?

1. −6°C
2. −1°C
3. −7°C
4. −5°C

Answer: (d) −5°C

A scientist observes the temperature is 275 K. If it increases by 5 K each hour, and after 4 hours the air conditioner reduces it by 10 K, what is the final temperature?

1. 275 K
2. 103 K
3. 295 K
4. 285 K

Answer: (d) 285 K

Lava cools from 1000 K to 600 K over 5 minutes. What is the drop in kelvin in 1 minute?

1. 80 K
2. 60 K
3. 50 K
4. 75 K

Answer: (a) 80 K

Ella is checking the temperature in the garden early in the morning. The thermometer reads 8°C. By afternoon, the sun heats the garden and multiplies the temperature by 4. In the evening, the sprinkler system cools it down by 15°C. What is the final temperature?

1. 32°C
2. 25°C
3. 17°C
4. 40°C

Answer: (c) 17°C

A greenhouse shows 25°C. If the temperature doubles, then is divided by 5, what is the reading?

1. 15°C
2. 10°C
3. 27°C
4. 5°C

Answer: (b) 10°C

A scientist notes the temperature is 295 K. If it triples, then drops by 200 K, what does it show?

1. 685 K
2. 180 K
3. 450 K
4. 1000 K

Answer: (a) 685 K

At dawn, the thermometer shows 60°F. It triples in the afternoon, then drops by 40°F at night. What is the final reading?

1. 140°F
2. 120°F
3. 130°F
4. 110°F

Answer: (a) 140°F

Arun sets the air conditioner to 25°C before sleeping. During the night, the room feels chilly, so he increases the temperature setting. Which setting will make the room warmer?

1. 20°C
2. 18°C
3. 24°C
4. 28°C

Answer: (d) 28°C