Physics 1401
Online Quiz 2
Chapter 3 in
Conceptual Physics
12th edition
Question 1.
If
average speed
= distance/time, then for a 5-hour trip where you travelled 250 miles, your
average speed
was
(a) 0 mph,
(b) 25 mph,
(c) 50 mph,
(d) 5 mph,
(e) 120 mph.
Question 2.
For the trip mentioned above, would the speedometer have to read a constant speed for the entire trip?
(a) yes
(b) no
Question 3.
For the trip mentioned above, could the speedometer have read a constant speed for the entire trip?
(a) yes
(b) no
Question 4.
If the
average acceleration
= change in velocity/time, then for a car that starts from rest and attains a velocity of 25 km/hour in 5 seconds, the average acceleration (in km/hour/second) is
(a) 0
(b) 5
(c) 10
(d) 25
(e) 50
Question 5.
The average acceleration of a car that maintains a constant velocity of 100 km/hour for 10 seconds (in km/hour/sec) is
(a) 0
(b) 5
(c) 10
(d) 25
(e) 50
Question 6.
During the first two seconds, a freely falling object released from rest near the surface of the earth will fall a distance (in m) of
(a) 0
(b) 5
(c) 10
(d) 20
(e) 50
Question 7.
By the end of the first two seconds, a freely falling object released from rest will attain a speed (in m/s) of
(a) 0
(b) 5
(c) 10
(d) 20
(e) 50
Question 8.
A ball is thrown straight up with an initial speed of 20 m/s. Neglecting air resistance, the ball will rise to a height above its release point (in m) of
(a) 5
(b) 10
(c) 20
(d) 40
(e) 45
Question 9.
Neglecting air resistance, the ball in the previous question will return to its release point with a speed (in m/s) of
(a) 5
(b) 10
(c) 20
(d) 40
(e) 45
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