Question 15
EasyOriginal questionA rocket rises because it pushes hot gases downwards out of its engine. Which law explains the upward push on the rocket?
Show the answer and explanation
CorrectNot quiteAnswer B
Correct answer: B
Explanation
The rocket exerts a force on the gases (action); the gases exert an equal and opposite force on the rocket (reaction).
That is Newton's third law: to every action there is an equal and opposite reaction.
Worth noting
A rocket works even in space, where there is no air to push against, because the push is between the rocket and its own exhaust.
- Concept
- Newton's third law
- Typical timeTypical
- 35 s
- Your timeYours
- —
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