Physics
Grade-8
Easy
Question
The following example follows law of conservation of momentum. Is the statement true or false?
- True
- False
Hint:
Law of conservation of momentum states that for two or more bodies in an isolated system acting upon each other, their total momentum remains constant unless an external force is applied.
The correct answer is: True
When we inflate a balloon, we fill it with a pressurized gas (air). When we let go of the end, the air rushes out and pushes against the air around the balloon to move it in the opposite direction. Newton describes this effect in his Third Law of Motion: for every action, there is always an equal and opposite reaction.
hence true
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