Stress and Forces Quiz

What is compression stress?

• An inward pushing/crushing force

• An outward pulling/stretching force

• A force that increases the volume of an object

• A force that has no effect on the volume of an object

What happens to the volume of an object under compression stress?

• It increases

• It decreases

• It remains the same

• It fluctuates

What is tension stress?

• An inward pushing/crushing force

• An outward pulling/stretching force

• A force that decreases the volume of an object

• A force that has no effect on the volume of an object

What happens to the volume of an object under tension stress?

• It increases

• It decreases

• It remains the same

• It fluctuates

What is torsion?

• A force that compresses an object

• A force that stretches an object

• A force that twists an object

• A force that bends an object

What is shearing?

• A force that compresses an object

• A force applied to an object at one point and an opposing force applied nearby

• A force that stretches an object

• A force that bends an object

What can shearing result in?

• Twisting

• Stretching

• Cutting

• Bending

What is a dynamic load?

• A load that is always changing or moving

• A load that is always stationary

• A load that is always increasing

• A load that is always decreasing

What are the main components of concrete?

• Aggregate, cement, and H2O

• Sand, gravel, and stone

• Cement and water

• Stone and cement

What happens when the H2O in concrete evaporates?

• The aggregate and cement solidify

• The concrete melts

• The concrete becomes liquid

• The concrete changes color