HARD
7th ICSE
IMPORTANT
Earn 100

Describe an activity to find the lower fixed point of a thermometer.

Important Questions on Heat and Temperature

EASY
7th ICSE
IMPORTANT
Distinguish between heat and temperature.
HARD
7th ICSE
IMPORTANT

Differentiate between mercury thermometer and alcohol thermometer.

MEDIUM
7th ICSE
IMPORTANT
Convert boiling point of water to Fahrenheit scale.
MEDIUM
7th ICSE
IMPORTANT

Convert 29°C to Kelvin Scale.

MEDIUM
7th ICSE
IMPORTANT
Convert temperature of ice point to the Kelvin scale.
MEDIUM
7th ICSE
IMPORTANT

Convert 77 °F to Celsius scale.

HARD
7th ICSE
IMPORTANT

Suppose you are holding a cup of hot tea in your hand. State the direction of transfer of heat in this case.

HARD
7th ICSE
IMPORTANT

The table given below shows the melting and boiling point of substances A, B and C in degree celsius.

Substance Melting point (°C) Boiling point (°C)
A 54 97 
B 39  128
C 10 30

What are the states of the substances at 50°C? Also, justify your answer.