Midterm Exam 2023a

Force is best defined as

• a. a scalar quantity.
• b. a push or pull by one object on another.
• c. something that is measured only in degrees.

Identify all of the prime movers from the list below. (multiple responses).

• pressure diference
• temperature difference
• voltage
• resistance
• temperature

When using the System International (SI) measuring system, mechanical force is measured in

• a. newtons.
• b. newtons per square meter (N/m2).
• c. pounds.

A non-zero net force means that all forces acting on an object

• a. create a balanced condition.
• b. are in the same line.
• c. create an unbalanced condition.

Two teams are in a tug-of-war; each pulls on a rope with opposite forces of 170 pounds. In this tug-of-war, the forces on the rope

• a. will cause movement.
• b. are unbalanced.
• c. are balanced.

The total amount of matter contained in an object

• weight
• torque
• mass

A physical quantity described only by magnitude

• weight
• mass
• scalar

The product of the force applied and the length of the lever arm

• weight
• torque
• mass

A physical quantity described by both magnitude and direction

• weight
• vector
• gravity

A measure of gravitational pull

• weight
• vector
• gravity