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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

3.2.2 Terminal Velocity – Check yourself

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  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
At terminal velocity, the resultant force on a falling object is
equal to its weight
zero
downward
upward
2.
The initial acceleration of an object released from rest in air (ignoring buoyancy) is
zero
less than g
g
greater than g
3.
When a skydiver opens a parachute at high speed, the skydiver
accelerates downward
is at terminal velocity
decelerates because drag exceeds weight
has zero weight
4.
On a v-t graph for a falling object approaching terminal velocity, the gradient
decreases toward zero
stays constant
increases
becomes negative
5.
If drag is kv2, the terminal velocity is proportional to
m
m2
1/m
√m
6.
A 5.0 kg object falls through a fluid with upthrust 4.0 N. At terminal velocity the drag is
49 N
45 N
4.0 N
53 N
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