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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

3.7.8 Elastic and Plastic Deformation – Check yourself

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  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
An elastic material
keeps a permanent extension
cannot store energy
must obey Hooke's law
returns to its original length when the force is removed
2.
The area of a rubber band's hysteresis loop represents
elastic energy stored
power
energy dissipated as heat
the modulus
3.
Unloading a ductile metal from the plastic region gives a line that is
horizontal
parallel to the original linear section
back along the loading curve
perpendicular to it
4.
Which has the larger elastic limit?
Spring steel
A paper clip
Plasticine
Soft copper
5.
A wire is loaded past the elastic limit then unloaded fully. The extension at zero load is
zero
negative
equal to the maximum
permanent extension
6.
A brittle material typically shows
long plastic region
hysteresis loop
almost no plastic region
necking
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Part of 3. Forces and Motion — see every lesson and quiz in this unit.
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