5296950
Description
Flashcards by Sarah Collinson, updated more than 1 year ago
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Created by Sarah Collinson
almost 8 years ago
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| Question | Answer |
| What is meant by conservation of momentum? | The total momentum before a collision is equal to the total momentum after the collision |
| What is the total change in momentum after a collision? | 0 |
| What is the unit of momentum? | kgm/s |
| Why is the total momentum 0 after an explosion? | The objects move apart with equal and opposite momentum |
| What is the total momentum after a gun is fired and why? | 0 kgm/s, because the bullet and gun recoil have equal and opposite momentums |
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