Question 1

If only one force is applied to an object can it be made to change shape?

Accepted Answer

No

Answer

Yes

Question 2

Which of these examples does NOT involve stretching, bending or compressing an object?

Accepted Answer

A car driving

Answer

A bungee jump

Answer

A car crash

Answer

Plucking a guitar string

Question 3

Which term is correct for this definition: 'Occurs when an object returns to its original shape and size when the forces are removed'

Accepted Answer

elastic deformation

Answer

elastic limit

Answer

extension curve

Answer

inelastic deformation

Question 4

What does this graph show?

Accepted Answer

Elastic material not stretched beyond its elastic limit

Answer

Inelastic material stretched beyond its elastic limit

Answer

Inelastic material not stretched beyond its elastic limit

Answer

Elastic material stretched beyond its elastic limit

Question 5

What does this graph show?

Accepted Answer

Elastic material stretched beyond its elastic limit

Answer

Inelastic material not stretched beyond its elastic limit

Answer

Elastic material not stretched beyond its elastic limit

Answer

Inelastic material stretched beyond its elastic limit

Question 6

What type of energy is stored in a stretched object?

Accepted Answer

elastic potential energy

Answer

gravitational potential energy

Answer

kinetic energy

Answer

thermal (heat) energy

Question 7

What type of force is acting here?

Accepted Answer

compression

Answer

bending

Answer

tension

Answer

stretching

Question 8

What is the work done if a 50 N load is raised by 20 m?

Accepted Answer

1000

Answer

0.4

Answer

2.5

Answer

70

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