Statics and Strength of Materials

What is the formula to calculate the moment of a force?

• force * distance

• force / distance

• force * time

• force + distance

What is the difference between static equilibrium and dynamic equilibrium?

• Static equilibrium is when an object is at rest, while dynamic equilibrium is when an object is accelerating.

• Static equilibrium is when an object is at rest, while dynamic equilibrium is when an object is moving at a constant velocity.

• Static equilibrium is when an object is accelerating, while dynamic equilibrium is when an object is at rest.

• Static equilibrium is when an object is moving at a constant velocity, while dynamic equilibrium is when an object is at rest.

What is the formula to calculate stress?

• stress = force / area

• stress = force - area

• stress = force + area

• stress = force * area

What is the formula to calculate strain?

• Strain = Change in length / Original length

• Strain = Change in length + Original length

• Strain = Change in length * Original length

• Strain = Change in length / Final length

What is the difference between tensile stress and compressive stress?

• Tensile stress compresses a material, while compressive stress stretches a material.

• Tensile stress stretches a material, while compressive stress compresses a material.

• Tensile stress and compressive stress are the same thing.

• Tensile stress and compressive stress have the same effect on a material.

What is the formula to calculate the bending moment in a beam?

• M = F / d

• M = F * L

• M = F + d

• M = F * d

What is the formula to calculate the deflection of a beam?

• (5 * w * L^4) / (384 * E * I^2)

• (5 * w * L^3) / (384 * E * I)

• (5 * w * L^4) / (384 * E * I^3)

• (5 * w * L^4) / (384 * E * I)

What is the difference between elastic deformation and plastic deformation?

• Elastic deformation occurs in metals, while plastic deformation occurs in non-metals.

• Elastic deformation is temporary and reversible, while plastic deformation is permanent and irreversible.

• Elastic deformation is permanent and irreversible, while plastic deformation is temporary and reversible.

• Elastic deformation and plastic deformation are the same thing.

What is the formula to calculate the modulus of elasticity?

• stress/strain

• velocity/time

• mass/acceleration

• force/area

What is the formula to calculate the shear stress in a beam?

• Shear Stress = Shear Force * Distance from Neutral Axis

• Shear Stress = (Shear Force * Distance from Neutral Axis) / (Area Moment of Inertia * Distance between Centroid and Neutral Axis)

• Shear Stress = Shear Force / Area Moment of Inertia

• Shear Stress = Shear Force / Distance between Centroid and Neutral Axis