HARD
9th ICSE
IMPORTANT
Earn 100

Represent graphically the variation of volume and density of water with temperature in 273 K to 283 K range.

Important Questions on Heat and Energy

MEDIUM
9th ICSE
IMPORTANT
Together With Physics Class 9>Chapter 5 - Heat and Energy>Self Evaluation Test>Q 8
What do you mean by global warming? State three impacts of global warming on the life on the earth.
MEDIUM
9th ICSE
IMPORTANT
Together With Physics Class 9>Chapter 5 - Heat and Energy>Self Evaluation Test>Q 9
What is tidal energy? Why it is not considered a major source of energy?
HARD
9th ICSE
IMPORTANT
Together With Physics Class 9>Chapter 5 - Heat and Energy>Self Evaluation Test>Q 10
In Hope's experiment to demonstrate the anomalous expansion of water, the temperature recorded by the thermometers is observed at a regular interval of time. Write the observations. Also, show the variation in temperature recorded by the thermometers used with time.
MEDIUM
9th ICSE
IMPORTANT
Together With Physics Class 9>Chapter 5 - Heat and Energy>Self Evaluation Test>Q 11
Classify non-renewable sources of energy.
MEDIUM
9th ICSE
IMPORTANT
Together With Physics Class 9>Chapter 5 - Heat and Energy>Self Evaluation Test>Q 12
Explain the reason for an increase in carbon dioxide's percentage in atmosphere.
HARD
9th ICSE
IMPORTANT
Together With Physics Class 9>Chapter 5 - Heat and Energy>Self Evaluation Test>Q 13
How is the environment getting affected with increasing the demand of energy?
HARD
9th ICSE
IMPORTANT
Together With Physics Class 9>Chapter 5 - Heat and Energy>Self Evaluation Test>Q 14
Differentiate between heat and temperature.