Physics Multiple Choice with Key | Jackson College

University:
Jackson College
Course:
PHY 231 | College Physics I
Academic year:

2024
Views:

345

Pages:

15
Author:

Tripp Floyd

PART A: MULTIPLE CHOICE Value: 70 marks (2 marks per question) Suggested Time: 70 minutes INSTRUCTIONS: For each question, select the best answer and record your choice on the Response Form provided. Using an HB pencil, completely fill in the circle that has the letter corresponding to your answer. 1. Which of the following correctly applies to a projectile in the absence of friction? A. The vertical velocity is changing. B. The horizontal velocity is changing. C. The vertical acceleration is changing.. D. The horizontal acceleration is changing. rem V 2. An 1800 kg car initially travelling at 15 m/s brakes to avoid hitting another car. The car accelerates at -1.9 m/s² while braking to a stop. How far does the car travel during its acceleration? a A. 29 m B. 59 m C. 120 m D. 180 m Ve 2 d= Vr²-V Ja 0-(15)-59.2m 3. A 15 kg rock is projected horizontally from a very high cliff at a speed of 65 m/s as shown. v=65 m/s 35 m v = ? What is the speed of the rock after it has fallen a vertical distance of 35 m? A. 26 m/s B. 59 m/s C. 65 m/s D. 70 m/s 4. Which of the following is equal to the gravitational field strength? A. F_{\mathfrak{a}} B. m/F_{0} F C. D. F_{E}*m ل 5. A cart of unknown mass is attached to a 2.2 kg mass hanging over the edge of a table as shown. The cart accelerates at 3m / (s ^ 2) (Ignore friction.) a = 3m / (s ^ 2) m = 2.2 kg F Op -F Og =F ast What is the mass of the cart? A. 1.2 kg B 5.0 kg C. 6.6 kg D. 7.2 kg 25. Three charges of identical magnitude are arranged as shown. Q_{2} Q_{3} What is the direction of the electric force on Q_{2} ? A. B. C. D. 26. Identical 12µC charges are placed at the ends of a metre stick. 12 με (+) P 12 με + What is the electric potential at point P at the 60 cm mark on the metre stick? A. 9 * 10 ^ 4 * V Scalor just add (no dvection) Tuse signs in equation) B. 3.8 * 10 ^ 5 * V =+ C. 4.5 * 10 ^ 5 * V D. 9.8 * 10 ^ 5 * V 27. What is the internal resistance of the battery if it delivers 1.5 A when connected to a 3.0 2 external load? E = 6.0 V r 1=1.5 A 3.0 Ω Μετ Α. 1.0 Ω Β. 3.0 Ω C. 4.0 Ω D. 7.0 Ω 28. In the circuit below, what is the current through the 2.0 Q resistor? 24 V 2.0 Ω 6.0 Ω Br 10.40 Ω A. 9.5 A B. 10 A C. 12 A D. 13 A