14. Measurement and Effects of Heat

1. How much heat will be needed to raise the temperature of 1.5 kg of water from 15 Degree Celcius to 45 Degree Celcius ?

1) 35000 cal
2) 5000 cal
3) 45000 cal
4) 25000 cal

2. Which is is the biggest source of heat received by the earth?

1) Moon
2) Sun
3) Candle
4) LED Light

3. If the temperature of water changes by 10 0C on giving 300 cal of heat, what is the mass of water?

1) 30 gm
2) 3000 gm
3) 3 gm
4) 300 gm

4. Which element fission give us Atomic energy?

1) uranium and iron
2) carban and uranium
3) uranium and thorium
4) hydrogen and thorium

5. thermometer is used to measure ------------------------

1) mass of an object
2) temperature of an object
3) capasity of an object
4) volume of an object

6. what is Specific heat of copper ?

1) 0.09 cal/(gm 0C)
2) 0.58 cal/(gm 0C)
3) 0.11 cal/(gm 0C)
4) 0.03 cal/(gm 0C)

7. Specific heat of which two substance is same?

1) Aluminium and Copper
2) Gold and Hydrogen
3) Copper and Gold
4) Mercury and Gold

8. expansion of substances depends on------------------

1) increase in its Volume
2) increase in its size
3) increase in its temperature
4) increase in it mass

9. What will be the increase in length of a steel rod of length 0.5 m, when its temperature is increased by 60 Degree Celcius ?

1) 0.037 cm
2) 0.032 cm
3) 0.039 cm
4) 0.035cm

10. What is the unit of heat in SI system?

1) Joule
2) All of these
3) calorie
4) Celius

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