Midterm - PHYS 204 EC2 2222_ Attempt review

pdf

School

Concordia University *

*We aren’t endorsed by this school

Course

204

Subject

Physics

Date

Jan 9, 2024

Type

pdf

Pages

7

Uploaded by ProfessorKnowledge24515

Report
10/19/23, 11:54 PM Midterm - PHYS 204 EC2 2222: Attempt review https://cole.concordia.ca/mod/quiz/review.php?attempt=113878&cmid=30900 1/7 Dashboard / My courses / PHYS-204-2222-EC2 / Your midterm exam / Midterm - PHYS 204 EC2 2222 PHYS-204-2222-EC2 Started on Sunday, 16 October 2022, 1:01 PM State Finished Completed on Sunday, 16 October 2022, 1:57 PM Time taken 56 mins 1 sec Grade 17.00 out of 25.00 ( 68 %) This exam is worth 25 marks. Do your best to answer each question. Good luck! Mark 0.00 out of 2.00 1 of 11 Two cars collide head on. Car A is travelling at 100km/hr and Car B is stopped on the road. The magnitude of the force Car A exerts on Car B is and the magnitude of the force Car B exerts on Car A is . Which of the following it true? A. B. C. D. You need to know the masses of the cars to answer this. The correct answer is: 2 Marks Exam Support
10/19/23, 11:54 PM Midterm - PHYS 204 EC2 2222: Attempt review https://cole.concordia.ca/mod/quiz/review.php?attempt=113878&cmid=30900 2/7 Mark 0.00 out of 2.00 2 of 11 You ride your bike around a circular track maintaining a constant speed of 21.1m/s. Choose the correct statement(s) regarding your acceleration. A. The magnitude of your acceleration is zero. B. Your tangential acceleration is zero. C. Your radial acceleration is zero. D. Your velocity is constant. The correct answer is: Your tangential acceleration is zero. Mark 2.00 out of 2.00 3 of 11 Suppose that a car traveling to the west (the negative x direction) begins to speed up. Which statement concerning its acceleration in the x direction is correct? A. Both its acceleration and its velocity are negative. B. Both its acceleration and its velocity are positive. C. Its acceleration is negative but its velocity is positive. D. Its acceleration is positive but its velocity is negative The correct answer is: Both its acceleration and its velocity are negative. Mark 0.00 out of 2.00 4 of 11 Two ants stand on a solid rotating wheel. Ant 1 is 10cm from the centre of the wheel and Ant 2 is 20cm from the centre of the wheel. If Ant 1 is rotating at a rate of 5.4rad/s, what is the angular speed of Ant 2? (Answer in rad/s) Answer: 2.7 The correct answer is: 5.40 2 Marks 2 Marks 2 Marks Exam Support
10/19/23, 11:54 PM Midterm - PHYS 204 EC2 2222: Attempt review https://cole.concordia.ca/mod/quiz/review.php?attempt=113878&cmid=30900 3/7 Mark 2.00 out of 2.00 5 of 11 Which of the following free body diagrams best describes the force acting on a person who is in an elevator that is descending at a constant speed? Answer A: F_e up, F_g down, F_e larger. Answer B: F_e up, F_g down, F_g larger. Answer C: F_e up, F_g down, same magnitude. Answer D: Both vectors down, same magnitude. A. B. C. D. The correct answer is: C. 2 Marks Exam Support
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
  • Access to all documents
  • Unlimited textbook solutions
  • 24/7 expert homework help
10/19/23, 11:54 PM Midterm - PHYS 204 EC2 2222: Attempt review https://cole.concordia.ca/mod/quiz/review.php?attempt=113878&cmid=30900 4/7 Mark 2.00 out of 2.00 6 of 11 A ball is tied to a 30cm-long-string and is swung in a vertical circle at a constant rate. Which free body diagram(s) for the ball could be correct at the instant the ball is at the bottom of the circle? The force of gravity and tension are indicated. Answer A: Gravity and tension down and equal in magnitude. Answer B: Gravity down, tension up, gravity larger magnitude. Answer C: Gravity down, tension up, tension larger magnitude. Answer D: Gravity and tension up, tension larger magnitude. A. B. C. D. The correct answer is: C. 2 Marks Exam Support
10/19/23, 11:54 PM Midterm - PHYS 204 EC2 2222: Attempt review https://cole.concordia.ca/mod/quiz/review.php?attempt=113878&cmid=30900 5/7 Mark 3.00 out of 3.00 7 of 11 For the following question use that the ball's angular speed is a constant 10rad/s and the mass of the ball is 0.099kg. Find the magnitude of the tension in string when the ball is at the top of the circle. (Answer in newtons) Answer: 1.99881 The correct answer is: 2.0 Mark 4.00 out of 4.00 8 of 11 An angry monkey stands on the edge of a cliff that is 15m above the ocean. She then throws a banana off the edge of the cliff at an angle of 30 degrees below the horizontal with a speed of 23.4m/s. What is the magnitude of the velocity of the banana when it hits the water? (Answer in m/s) Answer: 29.014 The correct answer is: 29.01 3 Marks 4 Marks Exam Support
10/19/23, 11:54 PM Midterm - PHYS 204 EC2 2222: Attempt review https://cole.concordia.ca/mod/quiz/review.php?attempt=113878&cmid=30900 6/7 Mark 2.00 out of 2.00 9 of 11 A 10-kg-box sits on a frictionless ramp inclined by an angle of 37 degree as shown below. A horizontal force is applied to the box. The magnitude of the force is 38N. What is the magnitude of the normal force between the block and the ramp? (Answer in newtons) Answer: 101.215 The correct answer is: 101.14 Mark 2.00 out of 2.00 10 of 11 What is the magnitude of the acceleration of the box? (answer in m/s ) Answer: 2.868 The correct answer is: 2.86 2 Marks 2 Marks Exam Support
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
  • Access to all documents
  • Unlimited textbook solutions
  • 24/7 expert homework help
10/19/23, 11:54 PM Midterm - PHYS 204 EC2 2222: Attempt review https://cole.concordia.ca/mod/quiz/review.php?attempt=113878&cmid=30900 7/7 Mark 0.00 out of 2.00 11 of 11 What is the direction of motion of the box? a. Up the ramp. b. Down the ramp. c. It is not moving. d. It could be any of the above. The correct answer is: It could be any of the above. 2 Marks Exam Support

Related Documents

1_4_Hookes_law_lab revised_2022.docx
phisics.docx
Lab Manual.pdf
pre lab ch5.docx
Sound Lab.pdf
CE3121. Assignement 13.pdf
Final-Exam-a-Fall-2021(1).docx
FINAL PROJECT PHYS.docx
Lab 2 Uniform acceleration.pdf
ES 1023-2123- Lab 8 Earthquake Seismology.pdf
Experiment 13 - Declan Rogers.docx
Review for Honors Physics final .pdf
Recommended textbooks for you
Text book image
Astronomy
Physics
ISBN:9781938168284
Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher:OpenStax
Text book image
Stars and Galaxies (MindTap Course List)
Physics
ISBN:9781337399944
Author:Michael A. Seeds
Publisher:Cengage Learning
Text book image
The Solar System
Physics
ISBN:9781337672252
Author:The Solar System
Publisher:Cengage
Text book image
Foundations of Astronomy (MindTap Course List)
Physics
ISBN:9781337399920
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
Text book image
Horizons: Exploring the Universe (MindTap Course ...
Physics
ISBN:9781305960961
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
Text book image
Stars and Galaxies
Physics
ISBN:9781305120785
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
SEE MORE TEXTBOOKS
Recommended textbooks for you
Text book image
Astronomy
Physics
ISBN:9781938168284
Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher:OpenStax
Text book image
Stars and Galaxies (MindTap Course List)
Physics
ISBN:9781337399944
Author:Michael A. Seeds
Publisher:Cengage Learning
Text book image
The Solar System
Physics
ISBN:9781337672252
Author:The Solar System
Publisher:Cengage
Text book image
Foundations of Astronomy (MindTap Course List)
Physics
ISBN:9781337399920
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
Text book image
Horizons: Exploring the Universe (MindTap Course ...
Physics
ISBN:9781305960961
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
Text book image
Stars and Galaxies
Physics
ISBN:9781305120785
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
SEE MORE TEXTBOOKS