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Physical Science, 5/e
Bill Tillery, Arizona State University

Motion

Chapter 2 Multiple Choice Quiz 2

Please answer all questions



1

The speedometer of a car gives you a reading of the car's
A)constant speed.
B)average speed.
C)instantaneous speed.
D)total speed.
2

For a trip of several hours duration, a ratio of the total distance traveled to the total time elapsed is a(an)
A)instantaneous speed.
B)average speed.
C)constant speed.
D)total speed.
3

The symbol <a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg:: ::/sites/dl/free/0072414944/9340/speedv.jpg','popWin', 'width=33,height=33,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a> is used to represent
A)instantaneous speed.
B)average speed.
C)constant speed.
D)total speed.
4

If <a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg:: ::/sites/dl/free/0072414944/9340/speedv.jpg','popWin', 'width=33,height=33,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a> = d/t, then d = ?
A)
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg:: ::/sites/dl/free/0072414944/9340/speedv.jpg','popWin', 'width=33,height=33,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a> /t
B)
t/<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg:: ::/sites/dl/free/0072414944/9340/speedv.jpg','popWin', 'width=33,height=33,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a>
C)
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg:: ::/sites/dl/free/0072414944/9340/speedv.jpg','popWin', 'width=33,height=33,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a> t
D)
(<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg:: ::/sites/dl/free/0072414944/9340/speedv.jpg','popWin', 'width=33,height=33,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a> )(1/t)
5

The size of a quantity is called
A)vector.
B)scalar.
C)ratio.
D)magnitude.
6

A quantity of 15 m/s to the north is a measure of
A)velocity.
B)acceleration.
C)speed.
D)directional distance in the metric system.
7

A quantity of 60 km/hr describes a(an)
A)vector.
B)acceleration.
C)speed.
D)metric distance.
8

A quantity of 5 m/s2 is a measure of
A)metric area.
B)acceleration.
C)speed.
D)velocity.
9

Measurements that have both magnitude and direction are
A)scalar quantities.
B)vector quantities.
C)dual quantities.
D)ratios.
10

A ratio of Δv/Δt is a measure of motion that is known as (recall that the symbol Δ means "a change in")
A)speed.
B)velocity.
C)acceleration.
D)none of the above.
11

A ratio of Δd/Δt is a measure of motion that is known as
A)speed.
B)acceleration.
C)mass density.
D)none of the above.
12

Which one of the following is not the same as the expression of m/s2?
A)m/s/s
B)(m/s)(s)
C)(m/s)(1/s)
D)none of the above
13

An automobile has how many different devices that can cause it to undergo acceleration?
A)none
B)one
C)two
D)three or more
14

You can find an average velocity by adding the initial and final velocity and dividing by 2 only when the acceleration is
A)changing.
B)uniform.
C)increasing.
D)decreasing.
15

Ignoring air resistance, an object falling toward the surface of the earth has a velocity that is
A)constant.
B)increasing.
C)decreasing.
D)acquired instantaneously, but dependent on the weight of the object.
16

Ignoring air resistance, an object falling near the surface of the earth has an acceleration that is
A)constant.
B)increasing.
C)decreasing.
D)dependent on the weight of the object.
17

Two objects are released from the same height at the same time, and one has twice the weight of the other. Ignoring air resistance,
A)the heavier object hits the ground first.
B)the lighter object hits the ground first.
C)they both hit at the same time.
D)whichever hits first depends on the distance dropped.
18

A ball rolling across the floor slows to a stop because
A)there are unbalanced forces acting on it.
B)the force that started it moving wears out.
C)the forces are balanced.
D)the net force equals zero.
19

If there are no unbalanced forces acting on a moving object it will
A)slow to a stop.
B)continue to move.
20

The distance that an object in free fall has covered is proportional to the square of the
A)weight of the object.
B)mass of the object.
C)time of fall.
D)distance of the fall.
21

When you throw a ball directly upward, it is accelerated
A)only as it falls.
B)during the instantaneous stop and during the fall.
C)at all times.
D)none of the time.
22

After leaving the rifle, a bullet fired horizontally has how many forces acting on it (ignoring air resistance)?
A)one, from the gunpowder explosion
B)one, from the pull of gravity
C)two, one from the gunpowder explosion and one from gravity
D)none
23

Which of the following best describes the path that a bullet follows after it leaves a rifle?
A)
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::Choice a::/sites/dl/free/0072414944/9340/choicea.jpg','popWin', 'width=81,height=72,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif">Choice a (5.0K)</a>Choice a
B)
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::Choice b::/sites/dl/free/0072414944/9340/choiceb.jpg','popWin', 'width=110,height=72,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif">Choice b (6.0K)</a>Choice b
C)
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::Choice c::/sites/dl/free/0072414944/9340/choicec.jpg','popWin', 'width=97,height=72,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif">Choice c (5.0K)</a>Choice c
D)
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::Choice d::/sites/dl/free/0072414944/9340/choiced.jpg','popWin', 'width=72,height=72,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif">Choice d (5.0K)</a>Choice d