Young's Modulus Quiz

What is the formula for calculating Young's modulus?

• Stress/Strain

• Force/Area

• Mass/Volume

• Velocity/Acceleration

What are the units of Young's modulus?

• kilograms per cubic meter (kg/m^3)

• meters per second (m/s)

• joules (J)

• pascals (Pa) or newtons per square meter (N/m^2)

Name one factor that affects Young's modulus.

• velocity

• density

• pressure

• temperature

What is the definition of Young's modulus?

• Young's modulus is a measure of the density of a material.

• Young's modulus is a measure of the flexibility of a material.

• Young's modulus is a measure of the hardness of a material.

• Young's modulus is a measure of the stiffness of a material.

What is the formula for calculating stress?

• extension / original length

• mass/density

• Force/Mass

• force/area

What is the formula for calculating strain?

• extension / original length

• mass/density

• Force/Mass

• force/area

The equation for stress is...

If you apply a force to deform a material then remove the force and the material returns to its original shape this is

• elastic deformation

• plastic deformation

• inelastic deformation

• unplastic deformation

What is the Youngs Modulus if a stress of 25MPa causes a strain of 0.003?

• 8x10⁹ Pa

• 8x10⁶ Pa

• 8x10³ Pa

• 8x10^-3 Pa

What is the equation for energy stored in elastic material

• E =¹ / ₂ kx

• E =¹/₂ + F/X

• E = ¹/₂ kx²

• E = 2Fx