PHYSICS 165 MODULE 4 CERTIFICATION
SET 2026 GRADED A+
⫸ What is the unit for both energy and work? Answer: Joules
⫸ Which of the following changes will decrease the amount of work
done by a force Answer: a) Make the force as large as possible
b) Increase the angle between the force and the displacement
c) Apply the force over a larger displacement
d) Apply the force in the same direction as the displacement
Answer: B
⫸ How can a waiter apply a force to a tray and NOT do any work on it?
Answer: Either apply the force in a direction that is perpendicular to the
displacement, have no displacement
⫸ When the energy of a system increases, what type of work is most
likely done ON that system? Answer: a) positive work
b) negative work
c) zero work
d) there is no relationship between work and energy
, Answer: A
⫸ Which two of the follow will affect the amount of work you do in
lifting a book onto a shelf? Answer: a) the path that the book takes as
you lift it to the shelf
b) the time it takes you to lift it to the shelf
c) the height of the shelf
d) the mass of the book
Answer C and D
⫸ Which of the following forces is an example of a non-conservative
force? Answer: a) Electric
b) Friction
c) Gravity
d) Magnetic
Answer: B
⫸ True or False: A football is kicked into the air. As it rises, its kinetic
energy decreases and its gravitational potential energy increases.
Answer: True
⫸ If you wanted to make the kinetic energy of a thrown ball larger,
what two things could you do to make the kinetic energy of the ball
SET 2026 GRADED A+
⫸ What is the unit for both energy and work? Answer: Joules
⫸ Which of the following changes will decrease the amount of work
done by a force Answer: a) Make the force as large as possible
b) Increase the angle between the force and the displacement
c) Apply the force over a larger displacement
d) Apply the force in the same direction as the displacement
Answer: B
⫸ How can a waiter apply a force to a tray and NOT do any work on it?
Answer: Either apply the force in a direction that is perpendicular to the
displacement, have no displacement
⫸ When the energy of a system increases, what type of work is most
likely done ON that system? Answer: a) positive work
b) negative work
c) zero work
d) there is no relationship between work and energy
, Answer: A
⫸ Which two of the follow will affect the amount of work you do in
lifting a book onto a shelf? Answer: a) the path that the book takes as
you lift it to the shelf
b) the time it takes you to lift it to the shelf
c) the height of the shelf
d) the mass of the book
Answer C and D
⫸ Which of the following forces is an example of a non-conservative
force? Answer: a) Electric
b) Friction
c) Gravity
d) Magnetic
Answer: B
⫸ True or False: A football is kicked into the air. As it rises, its kinetic
energy decreases and its gravitational potential energy increases.
Answer: True
⫸ If you wanted to make the kinetic energy of a thrown ball larger,
what two things could you do to make the kinetic energy of the ball
