CONCEPTUAL Physics 2a Test Bank Chapter 2.
1. A change in a physical quantity w having initial value wi and final value wf is given by which of the following?
a. wi − wf
b. wf − wi
c. (wf + wi)/2
d. none of the above
b. wf − wi
2. Displacement is which of the following types of quant...
CONCEPTUAL Physics 2a Test Bank
Chapter 2.
1. A change in a physical quantity w having initial value wi and final value wf is given by which of the
following?
a. wi − wf
b. wf − wi
c. (wf + wi)/2
d. none of the above
b. wf − wi
2. Displacement is which of the following types of quantities?
a. vector
b. scalar
c. magnitude
d. dimensional
a. vector
4. Which of the following is not a vector quantity?
a. temperature
b. velocity
c. acceleration
d. displacement
a. temperature
5. In one-dimensional motion, the average speed of an object that moves from one place to another and
then back to its original place has which of the following properties?
a. It is positive.
b. It is negative.
c. It is zero.
d. It can be positive, negative, or zero.
a. It is positive.
6. In one-dimensional motion where the direction is indicated by a plus or minus sign, the average
velocity of an object has which of the following properties?
a. It is positive.
b. It is negative.
c. It is zero.
d. It can be positive, negative, or zero.
d. It can be positive, negative, or zero.
, 7. An object moves 10 m east in 30 s and then returns to its starting point taking an additional 50 s. If
west is chosen as the positive direction, what is the sign associated with the average velocity of the
object?
a. +
b. −
c. 0 (no sign)
d. any of the above
c. 0 (no sign)
12. Jeff throws a ball straight up. For which situation is the vertical velocity zero?
a. on the way up
b. at the top
c. on the way back down
d. none of the above
b. at the top
16. Changing the positive direction in a reference frame to the opposite direction does not change the
sign of which of the following quantities?
a. velocity
b. average velocity
c. speed
d. displacement
c. speed
17. On a position-versus-time graph, the slope of the straight line joining two points on the plotted curve
that are separated in time by the interval Δt, is which of the following quantities?
a. average steepness
b. average velocity
c. instantaneous velocity
d. average acceleration
b. average velocity
18. Consider the magnitude of the average speed, vavg, speed, mag, and the magnitude of the average
velocity, vavg, velocity, mag, for the same trip. Which of the following is always true?
a. vavg, speed, mag = vavg, velocity, mag
b. vavg, speed, mag ≥ vavg, velocity, mag
c. vavg, speed, mag ≤ vavg, velocity, mag
d. none of the above
b. vavg, speed, mag ≥ vavg, velocity, mag
21. An x vs. t graph is drawn for a ball moving in one direction. The graph starts at the origin and at t = 5
s the velocity of the ball is zero. We can be positive that at t = 5 s,
a. the slope of the curve is non-zero.
b. the ball has stopped.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller ACADEMICAIDSTORE. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R214,59. You're not tied to anything after your purchase.
