Learn elasticity MCQs, online A level physics MCQ for test prep. Mechanics and properties of matter quiz has multiple choice questions (MCQ), elasticity quiz questions and answers as tensile strain is equal to, answer key help with choices as force per unit area, force per unit volume, extension per unit length and force per unit length problem solving for viva, competitive exam preparation, interview questions. Free study guide is to practice elasticity quiz online with MCQs to practice test questions with answers.

MCQ. Tensile strain is equal to

1. Force per unit area
2. Force per unit volume
3. Extension per unit length
4. Force per unit length

C

MCQ. Hooke's law states that

1. extension is proportional to load when elastic limit is not exceeded
2. extension is inversely proportional to load when elastic limit is not exceeded
3. extension is independent of load when elastic limit is not exceeded
4. load is dependent on extension

A

MCQ. Dimensions of strain are

1. [L]
2. [M] [L]-1 [T]-2
3. [L]-1
4. It's a dimensionless quantity

D

MCQ. At ‘yield point’ of a copper wire

1. load hasn't exceeded elastic limit yet; so, Hooke's law applies
2. load has already exceeded elastic limit and material has become plastic
3. even plastic stage has passed and wire has snapped already
4. Like Brass and Bronze, Copper has no yield point

B

MCQ. Substances that elongate considerably and undergo plastic deformation before they break are known as

1. brittle substances
2. breakable substances
3. ductile substances
4. elastic substances

C