Created by Sarah Collinson
over 3 years ago


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 