Youngs Modulus

What is the equation for Tensile Strain of a material?

• Force / Area

• Stress / Area

• Extension / Length

• F / A

What happens at the Yield point?

• solid material that is being stretched begins to change shape permanently

• material begins to elastically deform

• Material is under high compressive forces and shrinks

What is the equation to calculate Young's Modulus?

• Young Modulus = E = ^Stress/_Strain

• Young's Modulus = E = mc²

• Youngs modulus = E =^Strain/_Stress

• Young's Modulus = E = ¹/₂Fx

Definition of Plastic Deformation?

• Being completely solid and not bending

• 'Stretching' and returning to the original shape

• 'Stretching' and not returning to the original shape

• Falling to the floor due to lack of structure.

What is the definition of tensile strength

• Resistance to localized plastic deformation induced by either mechanical indentation or abrasion.

• The external force acting on an object or surface parallel to the slope or plane in which it lies

• Maximum load that a material can support without fracture when being stretched.

What is the equation for energy stored in elastic material

• E =¹ / ₂ Fx

• E =¹/₂ + F/X

• E = ¹/₂ kx²

• E = 2Fx

What is the unit of stress?

• Nm^-2

• Nm²

• Pascals

• (N/M)^-2