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class 11 heat and thermodynamics

Authored by DebaD Kashyap

Physics

11th Grade

Used 24+ times

class 11 heat and thermodynamics
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25 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

For the formula:
 Q= m c ∆T
The  units for specific heat are:

g /J C
°C/g J
kJ/g
J/g°C

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What would be the effect on the particles if more heat is supplied to the system?

They would slow down
They would stop moving
They would speed up
There would be no effect

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the specific heat of water is 4,186 J/kg∙°C, how much heat is required to increase the temperature of 1.2 kg of water from 23 °C to 39 °C? 

-80,371.2
44,938.6
80,371.2
112,575.9

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Steam at temperature of 100°C is piped to 3 kg of water at the temperature of 5°C until the water reaches the boiling point. The mass of the steam required is
[Specific latent heat of vaporization of water = 2.26 × 106 J kg−1, specific heat capacity of water = 4.2 × 103 J kg−1°C−1]

0.26 kg
0.53 kg
0.94 kg
1.89 kg

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the definition of CONDUCTION?

When heat is transferred from objects like rays of light or electromagnetically.
a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
When heat transfers from objects that are touching.
When heat transfers through the heater or AC in your house.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the definition of CONVECTION

When heat transfers through the heater or AC in your house.
When heat transfers from objects that are touching.
a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
 hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the definition of RADIATION

 hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
When heat is transferred from objects like rays of light or electromagnetically.
When heat transfers from objects that are touching.
When heat transfers through the heater or AC in your house.

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