PHYS 165 Module 4 Exam Newest 2026 Complete Questions | With 100%
Correct Answers graded A+ Guaranteed Success!!
What is the process of producing change in the environment called? - (answer)Work
"Johnny, it is time to go to work." Which meaning of the word work does this sentence use? -
(answer)The everyday meaning of work
"Mowing the grass is hard work." Which meaning of the word work does this sentence use? -
(answer)The scientific meaning of work
What is the unit of both energy and work? - (answer)Joules
Answer the following questions:
A) Give an example of a situation where a force is applied to an object and it moves, but the force does
no work on the object.
B) Explain why the force does no work on the object. - (answer)A. This would happen if you were
carrying a moving box at a constant height while walking across the room.
B. This happens because the force applied is perpendicular to the objects motion. Resulting in 0 work
being done on the box.
Answer the following questions:
A) Describe a situation where a force is exerted on an object for a large amount of time but that force
does no work.
B) Explain why that force does no work. - (answer)Your Answer:
A. The situation is me sitting in a chair for an hour.
B. There is gravitational and normal forces at play, but there is no displacement so 0 work is being done.
Answer the following questions:
In Figure 4.23, a rope pulls a car.
A) Under what conditions does the rope cause the car to increase in energy?
, PHYS 165 Module 4 Exam Newest 2026 Complete Questions | With 100%
Correct Answers graded A+ Guaranteed Success!!
B) Under what conditions does the rope cause the car to decrease in energy? - (answer)Your Answer:
A. If the rope pulls the same direction as the displacement.
B. If the rope pulls the opposite direction of the displacement.
Answer the following questions:
A) Does the work you do on a book as you lift it onto a shelf depend on the path that the book takes?
B) On the time it takes?
C) On the height of the shelf?
D) On the mass of the book? - (answer)Your Answer:
A. No
B. No
C. Yes
D. Yes
Give an example of a conservative force. - (answer)Gravity, electricity, magnetism, and elasticity
Describe the energy transformations in the throwing of a football. Start with the quarterback picking up
the football, throwing it downfield, and end with the football landing incomplete on the ground. -
(answer)The football starts with no energy. When the quarterback picks up the football, he does work
on the football, thereby increasing both the kinetic energy and the gravitational potential energy. During
the throw, the kinetic energy of the football is greatly increased. Once it lets go, the football goes up and
increases in gravitational potential energy and decreases in kinetic energy until it reaches the top of the
path. As it starts to come down, the gravitational potential energy decreases, and the kinetic energy
increases. Once it hits the ground, the gravitational potential energy has all been converted to kinetic
energy. Friction and heat then take the kinetic energy away from the football as it rolls to a stop.
Answer the following questions:
A) Explain why it is easier to climb a mountain in a zigzag path rather than one that is straight up the
mountain.
Correct Answers graded A+ Guaranteed Success!!
What is the process of producing change in the environment called? - (answer)Work
"Johnny, it is time to go to work." Which meaning of the word work does this sentence use? -
(answer)The everyday meaning of work
"Mowing the grass is hard work." Which meaning of the word work does this sentence use? -
(answer)The scientific meaning of work
What is the unit of both energy and work? - (answer)Joules
Answer the following questions:
A) Give an example of a situation where a force is applied to an object and it moves, but the force does
no work on the object.
B) Explain why the force does no work on the object. - (answer)A. This would happen if you were
carrying a moving box at a constant height while walking across the room.
B. This happens because the force applied is perpendicular to the objects motion. Resulting in 0 work
being done on the box.
Answer the following questions:
A) Describe a situation where a force is exerted on an object for a large amount of time but that force
does no work.
B) Explain why that force does no work. - (answer)Your Answer:
A. The situation is me sitting in a chair for an hour.
B. There is gravitational and normal forces at play, but there is no displacement so 0 work is being done.
Answer the following questions:
In Figure 4.23, a rope pulls a car.
A) Under what conditions does the rope cause the car to increase in energy?
, PHYS 165 Module 4 Exam Newest 2026 Complete Questions | With 100%
Correct Answers graded A+ Guaranteed Success!!
B) Under what conditions does the rope cause the car to decrease in energy? - (answer)Your Answer:
A. If the rope pulls the same direction as the displacement.
B. If the rope pulls the opposite direction of the displacement.
Answer the following questions:
A) Does the work you do on a book as you lift it onto a shelf depend on the path that the book takes?
B) On the time it takes?
C) On the height of the shelf?
D) On the mass of the book? - (answer)Your Answer:
A. No
B. No
C. Yes
D. Yes
Give an example of a conservative force. - (answer)Gravity, electricity, magnetism, and elasticity
Describe the energy transformations in the throwing of a football. Start with the quarterback picking up
the football, throwing it downfield, and end with the football landing incomplete on the ground. -
(answer)The football starts with no energy. When the quarterback picks up the football, he does work
on the football, thereby increasing both the kinetic energy and the gravitational potential energy. During
the throw, the kinetic energy of the football is greatly increased. Once it lets go, the football goes up and
increases in gravitational potential energy and decreases in kinetic energy until it reaches the top of the
path. As it starts to come down, the gravitational potential energy decreases, and the kinetic energy
increases. Once it hits the ground, the gravitational potential energy has all been converted to kinetic
energy. Friction and heat then take the kinetic energy away from the football as it rolls to a stop.
Answer the following questions:
A) Explain why it is easier to climb a mountain in a zigzag path rather than one that is straight up the
mountain.
