GENERAL INSTRUCTIONS (Please read the following instructions very carefully)
1. Question marks are mentioned with each Question.
2. Please write neat and clean hand-writing on Answer Sheet. Use Margin on right side and left side of Answer Sheet.
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4. Do not click the button Submit Test before completing the paper on Answer Sheet.
5. This is a ONE TIME attempt test. Once started, it cannot be reversed or attempted again.
6. Take photo of all the Sheets and make single pdf file.
1
Where is energy used inside the human body ?
In stretching of muscles.
In pumping of heart.
In formation of ATP in cell.
All of these.
2
When you stand for a long time, the heart has to pump _________________ blood to them.
Less
More
No
None of these.
3
The main source of energy for the body is _____________.
Oxygen
Water
Soil
Food
4
Mechanical Energy is possessed by an object due to its_______________
Motion
Position
Both A and B
None of these
5
A total of 4900 joles was spent in lifting a 50 kg mass.The mass was raised to a height of _________________.
10 m
98 m
960 m
245,000 m
6
Elastic Potential Energy can be gained by an object due to _____________.
Stretching
Compressing
Bending
All of these
7
The energy possessed by an object due to the change in shape is known as _________________.
Kinetic Energy
Elastic Potential Energy
Gravitational Potential Energy
Magnetic Energy
8
Which of the following are the example of potential energy.
A moving bus
A rolling ball
Both of these
9
___________________ can only be changed from one form to another.
Mass
Length
Force
Energy
10
The energy required to raise a given volume of water from a well can be ____________
mega watts
mega newton
mega joules
kilo wants
11
An object possesses a potential energy of 10 J and kinetic energy of 5 J . The mechanical energy in an object will be _______________
10 J
5 J
15 J
Can not be calculated
12
Which of the following statements are true
1. The kinetic energy of an aeroplane at rest is zero.
2. The aeroplane standing at the ground level has zero potential energy.
3. The mechanical energy of the aeroplane at rest will be zero
Only 1
Only 1 and 2
1, 2 and 3
13
Which of the following are correct :
(a) A number of activities take place inside the body - some increase the energy of the body and some reduce it.
(b) Energy is used up when the muscles are stretched, the heart pumps blood, and so on.
Only (a) is correct.
Only (b) is correct.
Both (a) and (b) are correct.
14
(a) For electrical - energy consumption in houses, factories, shops, etc, kilowatt - hour is simply called ' unit'.
(b) For electrical - energy consumption in houses, factories, shops, etc, kilowatt - hour is simply called ' Watt'.
(c) The SI unit of energy is the joule (J).
Only (a) and (b) are correct.
Only (b) and (c) are correct.
Only (a) and (c) are correct.
15
(a) When a ball is dropped from a height, its gravitational potential energy decreases.
(b) When a ball is dropped from a height, its gravitational potential energy increases.
(c) When we switch on an electric torch, the chemical energy stored in the batteries is converted into heat energy.