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Course: OCR A Level Physics A H556
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Curriculum

OCR A Level Physics A H556

1. Development of Practical Skills in Physics

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2. Foundations in Physics

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3. Forces and Motion

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4. Electrons, Waves and Photons

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OCR H556 chapter questions and answers

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Quiz

3.3.1 Conservation of Momentum – Check yourself

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  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
Momentum is conserved in a collision provided
kinetic energy is conserved
objects stick together
no resultant external force acts
the masses are equal
2.
A 1.0 kg trolley at 4.0 m s-1 hits a stationary 3.0 kg trolley and they join. The common velocity is
1.0 m s-1
1.3 m s-1
3.0 m s-1
4.0 m s-1
3.
A gun fires a bullet. The gun recoils because
bullet and gun have equal speeds
the bullet has less mass than the air
kinetic energy is zero
total momentum remains zero
4.
A 0.50 kg ball at 6.0 m s-1 hits a stationary 1.5 kg ball and stops. The velocity of the second ball is
1.0 m s-1
2.0 m s-1
3.0 m s-1
6.0 m s-1
5.
Newton's third law is used in the derivation because
forces are equal and opposite for equal times
mass is conserved
speeds are equal
energy is equal
6.
In a recoil situation starting at rest, the lighter object has
zero speed
the smaller speed
the same speed
the larger speed
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