8th Science Refresher course Topic 1 - Answer key
Lesson 1 - Heat and Temperature - Refresher course Answer
Convert the given temperature
1. 45°C = __ °F
Answer : 113 ° F
2. 20°C = __ °F
Answer : 67 ° F
3. 68°F = __ °C
Answer : 20°C
4. 0°C = __ K
Answer : -459.67 K
5. – 20°C = __ K
Answer : 253.15 K
6. 272.15 K = __ °C
Answer : -1° C
EVALUATION
1. The unit of temperature is ________.
Answer : Kelvin
2. The liquid used in thermometer is _________
Answer : Mercury
3. Mercury is used in laboratory thermometer because it ________
Answer : Expands Uniformly
4. The normal temperature of healthy man is ________
Answer : 98.6 F° ( 37°c)
5. Doctor uses ______ thermometer to measure the human body temperature.
Answer : Clinical thermometer
II. Match the following
Answer :
- i - 100° c
- ii - 0° c
- iii - Energy
- iv - 37°c
6. Heat energy transfers from ________ to ______
. Answer : Higher to Lower temperature
7. -10°C temperature is _______ than 0°C temperature.
Answer : cooler
8. At room temperature mercury is in _______ state.
Answer : liquid
