If it undergoes large permanent stretching before it breaks.
1 of 9
Dense
Large mass per unit volume.
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Stiff
Difficult to stretch or bend. High Young Modulus.
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Tough
Does not break by snapping cleanly. Resistant to the propagation of cracks. Material dissipates large amount of energy per unit of new fracture surface. Opposite of brittle.
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Brittle
Breaks by snapping cleanly. Cracks propagate easily. Opposite of tough.
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Elastic
Regains shape after stretching.
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Plastic
Does not regain shape after stretching. Permanent distortion.
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Malleable
If it is easy to hammer or press into a desired shape.
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Hard
If it is difficult to dent the surface of the material. Brinell Hardness.
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Other cards in this set
Card 2
Front
Large mass per unit volume.
Back
Dense
Card 3
Front
Difficult to stretch or bend. High Young Modulus.
Back
Card 4
Front
Does not break by snapping cleanly. Resistant to the propagation of cracks. Material dissipates large amount of energy per unit of new fracture surface. Opposite of brittle.
Back
Card 5
Front
Breaks by snapping cleanly. Cracks propagate easily. Opposite of tough.
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