Physics Exam
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WeekTwoMidtermPHS104IntroductoryPhysics.pdf
5/17/2020 Take Test: Week Two Midterm – PHS104 Introductory Physics
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Take Test: Week Two MidtermPHS104 Introductory Physics Week Two
Take Test: Week Two Midterm
Test Information
Description
Instructions
Timed Test This test has a time limit of 4 hours.You will be noti�ed when time expires, and you may continue or submit. Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain.
Multiple Attempts
Not allowed. This test can only be taken once.
Force Completion
This test can be saved and resumed later. The timer will continue to run if you leave the test.
This is a 15-question Quiz which will assess your knowledge on this week's Learning Resources.
Please answer each question below and click Submit when you have completed the Quiz.
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QUESTION 1
What is the di�erence between displacement and distance?
Paragrap Arial 3 (12pt)
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Question Completion Status:
Remaining Time: 3 hours, 56 minutes, 04 seconds.
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Home Shaquille Lane
5/17/2020 Take Test: Week Two Midterm – PHS104 Introductory Physics
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QUESTION 2
Give a de�nition of acceleration and deceleration.
Paragrap Arial 3 (12pt)
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QUESTION 3
Give a de�nition of average velocity.
Paragrap Arial 3 (12pt)
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QUESTION 4
An airplane lands with an initial velocity of 70 m/s and then decelerates at 1.50 for 40 sec. What is its �nal
velocity?
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Question Completion Status:
Remaining Time: 3 hours, 56 minutes, 04 seconds.
Click Save and Submit to save and submit. Click Save All Answers to save all answers.
5/17/2020 Take Test: Week Two Midterm – PHS104 Introductory Physics
https://nu.blackboard.com/webapps/assessment/take/launch.jsp?course_assessment_id=_291422_1&course_id=_124945_1&content_id=_9409420_… 3/7
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Paragrap Arial 3 (12pt)
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QUESTION 5
What is the acceleration of a rock thrown straight upward on the way up? At the top of its �ight? On the way down?
Paragrap Arial 3 (12pt)
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QUESTION 6
At the end of a race a runner decelerates from a velocity of 9 m/s at a rate of 400 .
(a) How far does she travel in the next 15 sec? (b) What is her �nal velocity?
Paragrap Arial 3 (12pt)
20 points Save Answer
Question Completion Status:
Remaining Time: 3 hours, 56 minutes, 04 seconds.
Click Save and Submit to save and submit. Click Save All Answers to save all answers.
5/17/2020 Take Test: Week Two Midterm – PHS104 Introductory Physics
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QUESTION 7
Find the north and east component of the displacement for the hikers shown in the Figure.
Paragrap Arial 3 (12pt)
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QUESTION 8
What is the net external force acting on a rock thrown straight up when it is at the top of its trajectory?
Paragrap Arial 3 (12pt)
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Question Completion Status:
Remaining Time: 3 hours, 56 minutes, 04 seconds.
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5/17/2020 Take Test: Week Two Midterm – PHS104 Introductory Physics
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QUESTION 9
What net external force is exerted on a 110 kg artillery shell �red from a battleship if the shell is accelerated at
?
Paragrap Arial 3 (12pt)
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QUESTION 10
Compare the kinetic energy of a 20,000 kg truck moving at 110 km/h with that of an 80 kg astronaut in orbit moving at 27,500 km/h.
Paragrap Arial 3 (12pt)
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QUESTION 11
Suppose a 50 kg teenager pocks up an 11 kg stereo and raises it 0.75 m from the �oor to a tabletop. (a) How much work did he do on the stereo? (b) How much work did he do to raise his own center of mass 0.40 m in the process?
Paragrap Arial 3 (12pt)
20 points Save Answer
Question Completion Status:
Remaining Time: 3 hours, 56 minutes, 04 seconds.
Click Save and Submit to save and submit. Click Save All Answers to save all answers.
5/17/2020 Take Test: Week Two Midterm – PHS104 Introductory Physics
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QUESTION 12
(a) What is the momentum of a garbage truck moving at 30 m/s? (b) At what speed would an 8 kg trash can have the same momentum?
Paragrap Arial 3 (12pt)
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QUESTION 13
What is an elastic collision? What is an inelastic collision?
Paragrap Arial 3 (12pt)
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QUESTION 14
Verify that the SI unit of is .
Paragrap Arial 3 (12pt)
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Question Completion Status:
Remaining Time: 3 hours, 56 minutes, 04 seconds.
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5/17/2020 Take Test: Week Two Midterm – PHS104 Introductory Physics
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QUESTION 15
To sterilize a 50 g glass baby bottle, we must raise its temperature from 22ºC to 95ºC. How much heat is required?
Paragrap Arial 3 (12pt)
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Question Completion Status:
Remaining Time: 3 hours, 56 minutes, 04 seconds.
Click Save and Submit to save and submit. Click Save All Answers to save all answers.
