Discussion :: Physics
- A vacuum cleaner works on the principle of pressure difference. On the moon it will
|
A.
Work as efficiently as on the earth |
|
B.
Not work at all |
|
C.
Work with reduced efficiency |
|
D.
Work with increased efficiency |
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Answer : Option B
Explanation :
Vacuum cleaners work by creating a lower pressure just inside the opening which touches the floor. Because there is no, or very little, atmosphere on the moon, we can't create a lower or higher gas pressure inside and outside the machine, so dirt cannot be sucked up from the ground.
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