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Answers
Answer:
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Explanation:
Q 1 : The dust particles that were previously at rest on the carpet remain at rest due to their inertia and hence, get separated from the carpet. This is why when a carpet is beaten with a stick, dust comes out from it.
Q 2 :
FORCE -
a) A force is a push or pull upon an object resulting from the object's interaction with another object.
b) Force is defined as the rate of change of momentum.
WEIGHT -
a) weight is the measurement of the gravitational force acting on an object.
b) the weight of an object depends on the gravity at that time.
Q 3 : Lightning is seen first because speed of light is much more than that of speed of sound therefore after sky lightning, thunder is seen later on and lightning first.