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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

0/56 Dr Dabour Hub Science Diagram and Course Material

2. Foundations in Physics

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3. Forces and Motion

0/108 Dr Dabour Hub Science Diagram and Course Material

4. Electrons, Waves and Photons

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OCR H556 chapter questions and answers

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Quiz

1.1.5 Using Practical Equipment and Materials – Check yourself

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  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
Which instrument is most suitable for measuring the diameter of a 0.30 mm wire?
Micrometer screw gauge
Metre rule
Vernier calipers of resolution 0.1 mm
Tape measure
2.
A balance reads 0.05 g with nothing on it. A sample reads 4.72 g. The true mass is:
4.77 g
4.67 g
4.72 g
0.05 g
3.
Parallax error is avoided by:
using a longer rule
using a stopwatch
reading the scale with the eye in line with the mark
taking repeated readings
4.
A length of 0.50 m is measured with a rule of resolution 1 mm. The percentage uncertainty from resolution is about:
2%
0.02%
20%
0.2%
5.
Which is a good precaution when stretching a wire to test it?
Wear eye protection
Use a very short wire
Use a thick wire
Heat the wire first
6.
Why must a spring not be extended beyond its elastic limit in repeated trials?
It becomes magnetic
It no longer returns to its original length
It becomes lighter
The mass changes
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Part of 1. Development of Practical Skills in Physics — see every lesson and quiz in this unit.
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