PAPER 2026 GRADED A+
⫸ What is the process of producing change in the environment called?
A) Energy
B) Force
C) Power
D) Work Answer: D) Work
⫸ What is the unit of both energy and work? Answer: JOULES
⫸ True or False: When you hold a dumbbell in place 3 feet off the
ground, work is being done.
A) True
B) False Answer: B) False
⫸ Which of the following could be a unit for power?
A) Candelas
B) Horsepower
C) Amperes
D) Volts Answer: B) Horsepower (and Watts)
, ⫸ Which of the following changes will maximize the work done by a
force? Answer: Apply the force in the same direction as the
displacement
⫸ 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 decreases, what type of work is most
likely done ON that system? Answer: zero work
⫸ When the energy of a system increases, what type of work is most
likely done ON that system?
A) Positive work
B) Negative work
C) Zero work
D) There is no relationship between work and energy Answer: A)
Positive work
⫸ Explain why that force does no work. Answer: Large amount of
GRAVITATIONAL FORCE and normal force, but no
DISPLACEMENT, so no work has been done
⫸ 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