University:
Concordia University Wisconsin
Course:
PHYS 1514 | General Physics I
Academic year:

2019
Views:

412

Pages:

24
Author:

Nesbyenvkk

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. m 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 Ve d=7 A. 29 m B. 59 m C. 120 m D. 180 m 416+20d d=V-V Ja 2 0-(15ml) 2(-1.9m) 759.2m 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 y=? 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 Un = 65m N thas V=70 09-98 d=35m Page 1 =2619- 4. Which of the following is equal to the gravitational field strength? A. F B. F C. F D. Fxm g 37 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 3.0 m/s². (Ignore friction.) a = 3.0 m/s m=7 2.2 kg What is the mass of the cart? A. 1.2 kg B 5.0 kg C. 6.6 kg D. 7.2 kg = m, a (22/98)= (m+2.2) (3ml) -3m m-5kg H Page 2 25. Three charges of identical magnitude are arranged as shown. Θ What is the direction of the electric force on Q,? A. B. C. D. 26. Identical 12 µC charges are placed at the ends of a metre stick. 12 με (+) P 400m 12 με 50 What is the electric potential at point P at the 60 cm mark on the metre stick? A. 9.0×10 V B. 3.8×10 V C. 4.5×10 V D. 9.8×10 V added? veo -9-10/1200 4 120 = 90,000 + 450,00 Page 11 1

Physics Part A Multiple Choice

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