EASY
7th CBSE
IMPORTANT
Earn 100

Why does a clinical thermometer have a kink in its stem?

Important Questions on Heat and Its Effects

MEDIUM
7th CBSE
IMPORTANT
Living Science 7>Chapter 5 - Heat and Its Effects>EXERCISES>Q D
Explain why a substance expands on heating?
MEDIUM
7th CBSE
IMPORTANT
Living Science 7>Chapter 5 - Heat and Its Effects>EXERCISES>Q D
Give one example where expansion on heating is put to good use. Explain the working with the help of a labelled diagram.
MEDIUM
7th CBSE
IMPORTANT
Living Science 7>Chapter 5 - Heat and Its Effects>EXERCISES>Q D
Explain why gases expand more than liquids and solids.
MEDIUM
7th CBSE
IMPORTANT
Living Science 7>Chapter 5 - Heat and Its Effects>EXERCISES>Q D
Explain with the help of a labelled diagram an experiment to show that liquids expand when heated.
MEDIUM
7th CBSE
IMPORTANT
Living Science 7>Chapter 5 - Heat and Its Effects>EXERCISES>Q D

Expansion on heating can be a nuisance. Explain giving two examples.

MEDIUM
7th CBSE
IMPORTANT
Living Science 7>Chapter 5 - Heat and Its Effects>EXERCISES>Q D
Convert: 25 °C to °F and 86 °F to °C.
MEDIUM
7th CBSE
IMPORTANT
Living Science 7>Chapter 5 - Heat and Its Effects>EXERCISES>Q D
Calculate the temperature at which the reading on the Fahrenheit scale is double the reading on the Celsius scale.
MEDIUM
7th CBSE
IMPORTANT
Living Science 7>Chapter 5 - Heat and Its Effects>EXERCISES>Q D
What precautions will you take while measuring temperature with a laboratory thermometer? What extra precaution will you take while measuring body temperature with a clinical thermometer?