Update 2026 ) Physics | Questions &
Answers | Grade A | 100% Correct -
Portage Learning
Which TWO of the following will NOT affect the amount of work you do in lifting a book
onto a shelf? -CORRECTANSWER The path that the book takes as you lift it to the
shelf, and the time it takes you to lift it to the shelf
What is the process of producing change in the environment called?
A) Energy
B) Force
C) Power
D) Work -CORRECTANSWER D) Work
What is the unit of both energy and work? -CORRECTANSWER JOULES
True or False: When you hold a dumbbell in place 3 feet off the ground, work is being
done.
A) True
B) False -CORRECTANSWER B) False
Which of the following could be a unit for power?
, A) Candelas
B) Horsepower
C) Amperes
D) Volts -CORRECTANSWER B) Horsepower (and Watts)
Which of the following changes will maximize the work done by a force? -
CORRECTANSWER 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? -
CORRECTANSWER 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? -CORRECTANSWER 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 -CORRECTANSWER A) Positive
work