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Transcript of Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your...
![Page 1: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/1.jpg)
Chapter 3
Linear Motion
![Page 2: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/2.jpg)
You’re lying on the sand on a breezy day when
a pesky fly wishes to join you. The breeze is
blowing at a steady 2 m/s. In order for the fly to
land on you it should hover over you while flying
a. against the breeze at 2 m/s.
b. with the breeze at 2 m/s.
c. a bit faster than 2 m/s.
d. about 4 m/s relative to the breeze.
![Page 3: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/3.jpg)
You’re lying on the sand on a breezy day when
a pesky fly wishes to join you. The breeze is
blowing at a steady 2 m/s. In order for the fly to
land on you it should hover over you while flying
a. against the breeze at 2 m/s.
b. with the breeze at 2 m/s.
c. a bit faster than 2 m/s.
d. about 4 m/s relative to the breeze.
![Page 4: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/4.jpg)
A glance at your speedometer will
tell you your
a. average speed.
b. instantaneous speed.
c. overall speed.
d. acceleration.
![Page 5: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/5.jpg)
A glance at your speedometer will
tell you your
a. average speed.
b. instantaneous speed.
c. overall speed.
d. acceleration.
![Page 6: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/6.jpg)
Nellie runs the length of a 100-yard
football field in a time of 20 seconds.
Her average running speed is
a. 1/2 yard/s.
b. 5 yards/s.
c. 50 yards/s.
d. No way to say.
![Page 7: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/7.jpg)
Nellie runs the length of a 100-yard
football field in a time of 20 seconds.
Her average running speed is
a. 1/2 yard/s.
b. 5 yards/s.
c. 50 yards/s.
d. No way to say.
![Page 8: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/8.jpg)
The average speed of a deer
traveling a distance of 2 km in a time
of 1/2 hour is
a. 1 km/h.
b. 2 km/h.
c. 4 km/h.
d. more than 4 km/h.
![Page 9: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/9.jpg)
The average speed of a deer
traveling a distance of 2 km in a time
of 1/2 hour is
a. 1 km/h.
b. 2 km/h.
c. 4 km/h.
d. more than 4 km/h.
![Page 10: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/10.jpg)
Suppose you hike a distance of 1 km
in a time of 1/2 hour. Then your
average speed is
a. almost 1 km/h.
b. 1 km/h.
c. slightly more than 1 km/h.
d. twice 1 km/h.
![Page 11: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/11.jpg)
Suppose you hike a distance of 1 km
in a time of 1/2 hour. Then your
average speed is
a. almost 1 km/h.
b. 1 km/h.
c. slightly more than 1 km/h.
d. twice 1 km/h.
![Page 12: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/12.jpg)
Your average speed in skateboarding to
your friend’s house is 5 mi/h. It is possible
that your instantaneous speed at some
point was
a. less than 5 mi/h.
b. 5 mi/h.
c. more than 5 mi/h.
d. Any of these.
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Your average speed in skateboarding to
your friend’s house is 5 mi/h. It is possible
that your instantaneous speed at some
point was
a. less than 5 mi/h.
b. 5 mi/h.
c. more than 5 mi/h.
d. Any of these.
![Page 14: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/14.jpg)
Sophia runs along the aisle of a train car that
moves at 8 m/s. Sophia’s speed relative to the
floor is 3 m/s. Her speed relative to an observer at
rest on the ground is
a. 3 m/s.
b. 5 m/s.
c. 11 m/s.
d. either 11 m/s or 5 m/s depending on whether
she runs in the same or opposite direction to the
train’s motion.
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Sophia runs along the aisle of a train car that
moves at 8 m/s. Sophia’s speed relative to the
floor is 3 m/s. Her speed relative to an observer at
rest on the ground is
a. 3 m/s.
b. 5 m/s.
c. 11 m/s.
d. either 11 m/s or 5 m/s depending on whether
she runs in the same or opposite direction to the
train’s motion.
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When you walk at an average speed
of 4 m/s, in 5 s you’ll cover a
distance of
a. 2 m.
b. 10 m.
c. 15 m.
d. 20 m.
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When you walk at an average speed
of 4 m/s, in 5 s you’ll cover a
distance of
a. 2 m.
b. 10 m.
c. 15 m.
d. 20 m.
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When a ball increases in speed by
the same amount each second, its
acceleration
a. also increases each second.
b. decreases each second.
c. is constant.
d. fluctuates.
![Page 19: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/19.jpg)
When a ball increases in speed by
the same amount each second, its
acceleration
a. also increases each second.
b. decreases each second.
c. is constant.
d. fluctuates.
![Page 20: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/20.jpg)
If a ball rolls down an inclined plane
and picks up 4 m/s each second it rolls,
its acceleration is
a. one-half of 4 m/s.
b. one-half of 4 m/s2.
c. 4 m/s2.
d. 10 m/s2.
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If a ball rolls down an inclined plane
and picks up 4 m/s each second it rolls,
its acceleration is
a. one-half of 4 m/s.
b. one-half of 4 m/s2.
c. 4 m/s2.
d. 10 m/s2.
![Page 22: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/22.jpg)
A motor scooter undergoes
acceleration when it
a. gains speed.
b. decreases speed.
c. changes direction.
d. All of these.
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A motor scooter undergoes
acceleration when it
a. gains speed.
b. decreases speed.
c. changes direction.
d. All of these.
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Velocity and acceleration
are actually
a. one and the same concept, but expressed
differently.
b. rates of one another.
c. expressions for changing speeds.
d. entirely different concepts.
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Velocity and acceleration
are actually
a. one and the same concept, but expressed
differently.
b. rates of one another.
c. expressions for changing speeds.
d. entirely different concepts.
![Page 26: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/26.jpg)
The acceleration of a raindrop that
falls at constant velocity
a. is zero.
b. is directed downward.
c. decreases over time.
d. increases over time.
![Page 27: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/27.jpg)
The acceleration of a raindrop that
falls at constant velocity
a. is zero.
b. is directed downward.
c. decreases over time.
d. increases over time.
![Page 28: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/28.jpg)
If a falling object gains 10 m/s each
second it falls, its acceleration is
a. 10 m/s.
b. 10 m/s2.
c. directed upward.
d. steadily increasing.
![Page 29: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/29.jpg)
If a falling object gains 10 m/s each
second it falls, its acceleration is
a. 10 m/s.
b. 10 m/s2.
c. directed upward.
d. steadily increasing.
![Page 30: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/30.jpg)
During each second of free fall,
the speed of an object
a. increases by the same amount.
b. changes by increasing amounts each second.
c. remains constant.
d. doubles each second.
![Page 31: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/31.jpg)
During each second of free fall,
the speed of an object
a. increases by the same amount.
b. changes by increasing amounts each second.
c. remains constant.
d. doubles each second.
![Page 32: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/32.jpg)
At the end of 1 second of free fall, an
apple falling from rest has a speed of
a. 1 m/s.
b. 5 m/s.
c. 10 m/s.
d. more than 10 m/s.
![Page 33: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/33.jpg)
At the end of 1 second of free fall, an
apple falling from rest has a speed of
a. 1 m/s.
b. 5 m/s.
c. 10 m/s.
d. more than 10 m/s.
![Page 34: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/34.jpg)
An object in free fall has a speed of
60 m/s. One second later its speed is
a. 10 m/s.
b. 30 m/s.
c. 60 m/s.
d. 70 m/s.
![Page 35: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/35.jpg)
An object in free fall has a speed of
60 m/s. One second later its speed is
a. 10 m/s.
b. 30 m/s.
c. 60 m/s.
d. 70 m/s.
![Page 36: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/36.jpg)
A free-falling object has a speed of
30 m/s at one instant. Exactly 1
second later its speed will be
a. the same.
b. 35 m/s.
c. more than 35 m/s.
d. 60 m/s.
![Page 37: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/37.jpg)
A free-falling object has a speed of
30 m/s at one instant. Exactly 1
second later its speed will be
a. the same.
b. 35 m/s.
c. more than 35 m/s.
d. 60 m/s.
![Page 38: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/38.jpg)
The speed of a vertically thrown ball
at the top of its path is
a. 0.
b. 10 m/s2.
c. between 0 and 10 m/s2.
d. dependent on the mass of the ball.
![Page 39: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/39.jpg)
The speed of a vertically thrown ball
at the top of its path is
a. 0.
b. 10 m/s2.
c. between 0 and 10 m/s2.
d. dependent on the mass of the ball.
![Page 40: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/40.jpg)
Which of these statements is true
about the coin-and-feather experiment
cited in your textbook?
a. Air drag doesn’t act in a vacuum.
b. Gravity doesn’t act in a vacuum.
c. A feather and a coin will accelerate equally in
air.
d. A feather will accelerate more than a coin in a
vacuum.
![Page 41: Chapter 3homepage.smc.edu/said_asma/Course2/03_Clicker_Que… · · 2010-09-13A glance at your speedometer will tell you your a. average speed. b. instantaneous speed. c. overall](https://reader034.fdocuments.in/reader034/viewer/2022042422/5afb929e7f8b9aff28901159/html5/thumbnails/41.jpg)
Which of these statements is true
about the coin-and-feather experiment
cited in your textbook?
a. Air drag doesn’t act in a vacuum.
b. Gravity doesn’t act in a vacuum.
c. A feather and a coin will accelerate equally in
air.
d. A feather will accelerate more than a coin in a
vacuum.