GEAS 14

Which is NOT a vector quantity?

• A. Displacement

• B. Velocity

• C. Acceleration

• D. Time

Which is NOT a fundamental physical quantity of mechanics?

• A. Length

• B. Mass

• C. Volume

• D. Time

What is an arrowed line whose length is proportional to the magnitude of some vector quantity and whose direction is that of the quantity?

• A. Vector diagram

• B. Vector

• C. Component

• D. Resultant

What is scaled drawing of the various forces, velocities or other vector quantities involved in the motion of a body?

• A. Vector diagram

• B. Vector

• C. Component

• D. Resultant

The _______ of a moving object is the distance it covers in a time interval divided by the time interval.

• A. acceleration

• B. instantaneous speed

• C. average speed

• D. instantaneous velocity

The rate at which velocity changes with time is known as ________.

• A. acceleration

• B. instantaneous speed

• C. average speed

• D. instantaneous velocity

“The work done by the net force on a particle equals the change in the particle’s kinetic energy.” This statement is known as _________.

• A. Law of conservation of energy

• B. Work-energy theorem

• C. Law of conservation of work

• D. Total work theorem

The ________ of a particle is equal to the total work that particle can do in the process of being brought to rest.

• A. kinetic energy

• B. potential energy

• C. total energy

• D. mechanical energy

Work is defined as the product of:

• A. Force and displacement

• B. Force and time

• C. Displacement and time

• D. Power and time

What is defined as the time rate at which work is done?

• A. impulse

• B. Momentum

• C. Power

• D. Energy