3.2 Young’s Modulus & Strain Energy Quiz

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Key concepts in elasticity

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Syarafina Shatmi

Malaysia

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Froggy Jumps 3.2 Young’s Modulus & Strain Energy QuizVersion en ligne Key concepts in elasticity par Syarafina Shatmi 1 Which statement correctly defines Young’s modulus? a Ratio of compressive stress to compressive strain b Ratio of tensile stress to tensile strain c Ratio of force to extension 2 A steel wire has a radius of 1.5mm. A tensile force of 500N is applied to the wire. Calculate the tensile stress. a 1.06 × 10^8 Pa b 2.12 × 10^8 Pa c 7.07 × 10^7 Pa 3 A wire of original length 2.0m extends by 0.80mm. What is the tensile strain? a 2.5 × 10^−4 b 8.0 × 10^−4 c 4.0 × 10^−4 4 Two wires are made from the same material and have the same length. Wire A has twice the cross-sectional area of Wire B. If the same tensile force is applied to both wires, which statement is correct? a Wire B experiences twice the stress of Wire A. b Both wires experience the same stress. c Wire A experiences twice the stress of Wire B. 5 A wire of length 1.2m and cross-sectional area 2.0 × 10^−6 m^2 extends by 0.30mm when subjected to a force of 100N. Calculate its Young’s modulus. a 1.67 × 10^10 Pa b 2.00 × 10^11 Pa c 2.00 × 10^10 Pa 6 What is the strain energy per unit volume U/V equal to? a 1/2 F ε^2 b σ ε c 1/2 σ ε 7 What is the area under the stress-strain graph equal to? a thermal energy b work done per unit volume c strain energy per unit volume 8 A material has a tensile stress of 4.0 × 10^7 Pa and a strain of 2.0×10^−4. Calculate the strain energy per unit volume. a 2.0 x 10^3 J m^-3 b 4.0 x 10^3 J m^-3 c 8.0 x 10^3 J m^-3

Froggy Jumps

3.2 Young’s Modulus & Strain Energy QuizVersion en ligne

Key concepts in elasticity

par Syarafina Shatmi

Which statement correctly defines Young’s modulus?

Ratio of compressive stress to compressive strain

Ratio of tensile stress to tensile strain

Ratio of force to extension

A steel wire has a radius of 1.5mm. A tensile force of 500N is applied to the wire. Calculate the tensile stress.

1.06 × 10^8 Pa

2.12 × 10^8 Pa

7.07 × 10^7 Pa

A wire of original length 2.0m extends by 0.80mm. What is the tensile strain?

2.5 × 10^−4

8.0 × 10^−4

4.0 × 10^−4

Two wires are made from the same material and have the same length. Wire A has twice the cross-sectional area of Wire B. If the same tensile force is applied to both wires, which statement is correct?

Wire B experiences twice the stress of Wire A.

Both wires experience the same stress.

Wire A experiences twice the stress of Wire B.

A wire of length 1.2m and cross-sectional area 2.0 × 10^−6 m^2 extends by 0.30mm when subjected to a force of 100N. Calculate its Young’s modulus.

1.67 × 10^10 Pa

2.00 × 10^11 Pa

2.00 × 10^10 Pa

What is the strain energy per unit volume U/V equal to?

1/2 F ε^2

σ ε

1/2 σ ε

What is the area under the stress-strain graph equal to?

thermal energy

work done per unit volume

strain energy per unit volume

A material has a tensile stress of 4.0 × 10^7 Pa and a strain of 2.0×10^−4. Calculate the strain energy per unit volume.

2.0 x 10^3 J m^-3

4.0 x 10^3 J m^-3

8.0 x 10^3 J m^-3

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3.2 Young’s Modulus & Strain Energy Quiz

Froggy Jumps

À propos de cette activité

Créé par

Téléchargez la version pour jouer sur papier

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3.2 Young’s Modulus & Strain Energy QuizVersion en ligne

par Syarafina Shatmi

Which statement correctly defines Young’s modulus?

A steel wire has a radius of 1.5mm. A tensile force of 500N is applied to the wire. Calculate the tensile stress.

A wire of original length 2.0m extends by 0.80mm. What is the tensile strain?

Two wires are made from the same material and have the same length. Wire A has twice the cross-sectional area of Wire B. If the same tensile force is applied to both wires, which statement is correct?

A wire of length 1.2m and cross-sectional area 2.0 × 10^−6 m^2 extends by 0.30mm when subjected to a force of 100N. Calculate its Young’s modulus.

What is the strain energy per unit volume U/V equal to?

What is the area under the stress-strain graph equal to?

A material has a tensile stress of 4.0 × 10^7 Pa and a strain of 2.0×10^−4. Calculate the strain energy per unit volume.