REVIEWER

A quantity that has both magnitude and direction.

• Mass

• Weight

• Vector

• Scalar

Which of the following best describes dynamics?

• Study of forces and their effects on stationary objects.

• Measurement of static friction in objects.

• The relationship between motion and the forces acting on objects.

• Analysis of forces and motion in objects that are moving.

What is the unit for stress?

• Pascal

• Ampere

• Newton

• Dimensionless

If you have 256 millimeters, how many meters is that?

• 0.256 m

• 2.56 m

• 256 m

• 25.6 m

What condition must be met for an object to be in static equilibrium?

• Net force must be zero.

• Net force must be greater than zero.

• Net moment must be less than zero.

• Net moment must be greater than zero.

Which of Newton's laws states that for every action, there is an equal and opposite reaction?

• First Law

• Second Law

• Third Law

• Law of Gravitation

A rubber band stretches from 20 cm to 25 cm. What is the strain in the rubber band?

• 0.2

• 0.75

• 0.5

• 0.25

Kinetics can be best described as the study of?

• The speed of an object without reference to direction.

• How objects move in a straight line.

• The relationship between motion and the forces acting on objects.

• Analysis of forces and motion in objects that are moving.

What is the primary focus of mechanics?

• The study of forces and their effects on bodies.

• The study of energy.

• The study of thermodynamics.

• The study of waves.

A concrete column has a cross-sectional area of 0.5 m2. It supports a load of 50,000 N. Calculate the stress on the column.

• 150 KG

• 150 KPA

• 100 KPA

• 100 KG