1. Power ishow strong someone or something is. C. how mưch work is being done,how much force is being used.A.В.D. how fast work is being done.2. In which situation is a person doing work on an object? .A. A school crossing guard raises a stop sign that weighs 10 N.A student walks 1 m/s while wearing a backpack that weighs 15 N.A man exerts a 350 N force on a rope attached to a house.A worker holds a box 1 m off the floor.В.С.D.- 3. Juan and Anita each lift an identical stack of books the same distance onto a table, but Anita does thejob twice as fast. Therefore, her actions involve twice as muchA. work input.work output.C. power.D. efficiency.В.4. Which of the following is NOT an example of work according to the scientific definition of work?A. playing baseballB. reading a chapter for homeworkC. pushing a wheelbarrowD. bowling5. A man applies a force of 500 N to push a truck 100 m down the street. How much work has been done?A. 500,000 JВ. 5,000 JC. 510 JD. 50,000 J6. Which of the following actions do more work on an object?A. lifting an 80 N box 1 m up off the floorB. lifting a 160 N box 1 m up off the floorC. lifting a 90 N box 2 m up off the floorD. lifting a 100 N box 1.5 m up off the floor1

Power is Let's check each option one by one A. How strong someone or something is Incorrect option…

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1. Power is how strong someone or something is. C. how much work is being done, how much force is being used. А. В. D. how fast work is being done.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.

Question

1. Power is
how strong someone or something is. C. how mưch work is being done,
how much force is being used.
A.
В.
D. how fast work is being done.
2. In which situation is a person doing work on an object? .
A. A school crossing guard raises a stop sign that weighs 10 N.
A student walks 1 m/s while wearing a backpack that weighs 15 N.
A man exerts a 350 N force on a rope attached to a house.
A worker holds a box 1 m off the floor.
В.
С.
D.
- 3. Juan and Anita each lift an identical stack of books the same distance onto a table, but Anita does the
job twice as fast. Therefore, her actions involve twice as much
A. work input.
work output.
C. power.
D. efficiency.
В.
4. Which of the following is NOT an example of work according to the scientific definition of work?
A. playing baseball
B. reading a chapter for homework
C. pushing a wheelbarrow
D. bowling
5. A man applies a force of 500 N to push a truck 100 m down the street. How much work has been done?
A. 500,000 J
В. 5,000 J
C. 510 J
D. 50,000 J
6. Which of the following actions do more work on an object?
A. lifting an 80 N box 1 m up off the floor
B. lifting a 160 N box 1 m up off the floor
C. lifting a 90 N box 2 m up off the floor
D. lifting a 100 N box 1.5 m up off the floor
1

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