AP Physics U4

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Last updated 3:42 AM on 4/22/26
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10 Terms

1
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Momentum experimental procedure

  1. Measure cart’s mass w scale

  2. Measure cart’s velocity w meterstick + stopwatch combo or motion sensor

  3. Calculate!

2
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Objects momentum is constant and only changes when…

an external force acts on it

3
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Impulse is the area under Fxt and Favg is …

an external force to the system

4
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Slope of p vs t graph is…

Favg

5
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Impulse is exerted due to an ___ force

external

6
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When the external force is exerted…

Pi + J = Pf

7
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In inelastic collisions…

total KE of system decreases during collision by WNC

8
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A graph of KE before vs after collision with slope ___ indicates an elastic collision.

1

9
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In an elastic collision with identical objects, they will…

Swap velocities!

10
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Elastic 1D collision eq

Vo1 + Vf1 = Vo2 + Vf2