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WorksheetsClass 7th - Heat - Critical Approach
Total questions: 10
Worksheet time: 28mins
Choose the correct statement
Infrared is a form of radiation which our eyes can easily see
Infrared is a form of radiation which our eyes cannot see
When the sun goes down, the temperature of our atmosphere does not come down drastically. What is the main cause for this?
Greenhouse gases trap the sunlight coming from sun
Greenhouse gases trap the infrared radiations coming from earth surface
There are two boxes made of iron. Box A has a volume of 20 cm3 and Box B has a volume of 60 cm3 . Both boxes are now provided same amount of heat. Which box will have more temperature?
Box A
Box B
Both box will have same temperature
A substance with a low specific heat requires relatively little heat to raise its temperature.
True
False
Temperature measures the amount of heat present in an object.
True
False
Heat and temperature are both form of energy.
True
False
If we increase the amount of greenhouse gases in the earth atmosphere, the average temperature of earth will:
increase
decrease
will not change
Sea and land breeze happens because land has more specific heat capacity as compared to water in the oceans.
True
False
Choose the correct statement.
Our eyes can see all forms of radiation
Our eyes can see only two forms of radiation and that are x-rays and light
Our eyes can see only one form of radiation and that is called light
Our eyes can see only two forms of radiation and that is ultraviolet and light
You are given two substances A and B. Initially, the temperature of both substances is 20 degrees Celsius. You now give equal amounts of heat to both A and B. But, we see that the temperature of A is now 30 degrees and of B is 25 degrees. Based on this data, can you guess which substance will have more specific heat?
Substance A
Substance B
Both have equal specific heat
