Chapter 7 Practice Quiz Cpl - Period 5 - Friday, 4/17/20
(87).webp "Chapter 7 Practice Quiz Cpl - Period 5 - Friday, 4/17/20 - Quiz")
Archbishop Wood High SchoolPhysics 9 CPL – Period 5Date: 4/17/20 Read moreChapter 7 Practice Quiz – Machines, Work, and EnergyMs. Antes
DIRECTIONS: Identify the choice that best completes the statement or answers
- 1.
The fixed point around which levers rotate is called the:
- A.
Input Arm.
- B.
Output Arm.
- C.
Fulcrum.
- D.
Lever Arm.
Correct Answer
C. Fulcrum.Explanation
Section 7.2Rate this question:
-
- 2.
Friction is a “catch-all” term for many processes that oppose:
- A.
Heat.
- B.
Wear.
- C.
Motion.
- D.
None of the above.
Correct Answer
C. Motion.Explanation
Section 7.3Rate this question:
-
- 3.
The metric unit for work is the:
- A.
Newton.
- B.
Joule.
- C.
Watt.
- D.
Meter
Correct Answer
B. Joule.Explanation
Section 7.1Rate this question:
-
- 4.
All of the following are considered to be simple machines EXCEPT:
- A.
Scissors.
- B.
A bicycle.
- C.
A jackknife.
- D.
A see-saw.
Correct Answer
B. A bicycle.Explanation
Section 7.2Rate this question:
-
- 5.
In a theoretical machine, work output:
- A.
Can be calculated by dividing output displacement by output force.
- B.
Is always greater than the work input.
- C.
Can be calculated by multiplying output force by output displacement.
- D.
Is always less than the work input.
Correct Answer
C. Can be calculated by multiplying output force by output displacement.Explanation
Section 7.2Rate this question:
-
Quiz Review Timeline +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
-
Current Version
-
Nov 16, 2023Quiz Edited by
ProProfs Editorial Team -
Apr 16, 2020Quiz Created by
Dantes
Back to top