AP Physics 1mediummcq1 pt
A rocket in deep space accelerates by ejecting fuel. The rocket's momentum
A.increases while the rocket-fuel system's total momentum stays constant
B.is conserved by itself
C.decreases as fuel burns
D.cannot change in space
Explanation
Core Concept
The exhaust carries equal and opposite momentum, so the combined system conserves momentum.
Correct Answer
Aincreases while the rocket-fuel system's total momentum stays constant
More Unit 5: Momentum practice questions
- hardA 0.10 kg ball dropped from 5.0 m bounces to 3.2 m (g = 10 m/s²). The impulse from the floor is about
- easyA 3.0 kg object at rest explodes into a 1.0 kg piece moving east at 6.0 m/s and a 2.0 kg piece. The 2.0 kg piece moves
- easyA system's total momentum is unchanged during a collision even though individual momenta change. This is because
- hardA 2.0 kg cart at 6.0 m/s collides with a 4.0 kg cart at rest on frictionless track; they stick. The impulse on the 4.0 kg cart is
- hardA 0.30 kg hockey puck at 10 m/s is caught by a 70 kg goalie at rest on frictionless ice. The goalie's speed afterward is about
Practice more AP Physics 1 questions with full explanations
Practice Unit 5: Momentum Questions →