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1 | |
The two vectors shown on the left side of the diagram are being combined. Which mathematical operation with these vectors is shown on the right side of the diagram?
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070890862/141729/SF10_Ch05_Q1.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (3.0K)</a>]]>
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| | A) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070890862/141729/SF10_Ch05_Q1a.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a>]]> |
| | B) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070890862/141729/SF10_Ch05_Q1b.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a>]]> |
| | C) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070890862/141729/SF10_Ch05_Q1c.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a>]]> |
| | D) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070890862/141729/SF10_Ch05_Q1d.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a>]]> |
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2 | |
A ball rolls past two points marked on a metre stick, as shown.
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070890862/141729/SF10_Ch05_Q2.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (5.0K)</a>]]>
The displacement of the ball is +20.1 cm. What is the best description of the motion of the ball? |
| | A) | from point A to point B |
| | B) | from point B to point A |
| | C) | from the left end of the metre stick to point B and then back to point A |
| | D) | from the right end of the metre stick to point A and then back to point B |
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3 | |
An aircraft traveled 542 km [N20°W] along a straight line. The journey took 1.5 h. What quantity can NOT be calculated from this information? |
| | A) | velocity |
| | B) | speed |
| | C) | displacement |
| | D) | acceleration |
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4 | |
Which set of quantities includes only vectors? |
| | A) | position, speed, velocity |
| | B) | distance, speed, time |
| | C) | displacement, velocity, acceleration |
| | D) | time interval, distance, displacement |
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5 | |
What is the difference between scalar and vector quantities? |
| | A) | Scalar quantities have direction, but vectors do not. |
| | B) | Vector quantities have direction, but scalars do not. |
| | C) | Scalar quantities have magnitude (size or amount) but vectors do not. |
| | D) | Vector quantities have magnitude (size or amount), but scalars do not. |
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6 | |
Which characteristics of an object affect its kinetic energy? |
| | A) | mass and velocity |
| | B) | mass and distance moved |
| | C) | velocity and distance moved |
| | D) | mass, velocity and distance moved |
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7 | |
According to the formula for kinetic energy, what combination of units is the same as a joule? |
| | A) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070890862/141729/SF10_Ch05_Q7a.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (1.0K)</a>]]>
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| | B) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070890862/141729/SF10_Ch05_Q7b.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (1.0K)</a>]]>
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| | C) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070890862/141729/SF10_Ch05_Q7c.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (1.0K)</a>]]> |
| | D) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070890862/141729/SF10_Ch05_Q7d.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (1.0K)</a>]]>
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8 | |
A soccer goaler catches and holds the fast-moving ball. What happens to the kinetic energy of the ball? |
| | A) | Kinetic energy stays the same because energy is conserved. |
| | B) | Kinetic energy is destroyed because the ball stops moving. |
| | C) | Kinetic energy is transformed into potential energy. |
| | D) | Kinetic energy is transformed into heat. |
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9 | |
How can you increase the kinetic energy of a person moving on a playground swing? |
| | A) | Push in the same direction as the swing is moving. |
| | B) | Push in the direction opposite to the motion of the swing. |
| | C) | Push sideways to change the direction the swing is moving. |
| | D) | Kinetic energy cannot be increased because energy is conserved. |
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10 | |
A world class sprinter runs a 100 m sprint at an average speed of 9.50 m/s. If the sprinter's kinetic energy is 9.40 x 103J what is the his mass? |
| | A) | 1.98 x 103 m/s |
| | B) | 208 kg |
| | C) | 104 kg |
| | D) | 52.1 kg |
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11 | |
The graph below shows the position of a marble as it rolls across the floor and comes to rest against a wall. What is the greatest velocity that the marble has in the time interval shown?
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070890862/141729/SF10_ch05_Q12.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (11.0K)</a>]]>
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| | A) | 0.80 m/s |
| | B) | 0.16 m/s |
| | C) | 0.27 m/s |
| | D) | 0 m/s |
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12 | |
At some points in its orbit, the international space station moves at a speed of 7.7 x 103 m. At this speed, how far does the Station move in two minutes? |
| | A) | 1.5 x 104 m |
| | B) | 4.6 x 105 m |
| | C) | 9.2 x 105 m |
| | D) | 64 m |
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13 | |
A 1.36 kg (3 pound) bowling ball traveled 19.16 m down the alley in 3.6 seconds. What was the velocity of the ball? |
| | A) | 7.2 m/s toward the pins |
| | B) | 0.19 m/s toward the pins |
| | C) | 69 m/s toward the pins |
| | D) | 5.3 m/s toward the pins |
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14 | |
A 76 kg skydiver has kinetic energy of about 1.0 x 103J just before landing. What is her velocity? |
| | A) | 26 m/s downward |
| | B) | 5.1 m/s downward |
| | C) | 8.7 m/s downward |
| | D) | 12 m/s downward |
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15 | |
A single-engine aircraft started its takeoff "ground run" from rest. The plane reached its takeoff speed of 155 m/s after accelerating steadily for 27 s. What was the average acceleration of the aircraft? |
| | A) | 5.7 m/s2 |
| | B) | 0.17 m/s2 |
| | C) | 4.2 x 103 m/s2 |
| | D) | Additional information is needed to calculate acceleration. |
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16 | |
A baseball pitcher hurls a 149 g baseball at 41.0 m/s. How much kinetic energy will be removed from the ball when it is stopped by the catcher's mitt? |
| | A) | 6.11 J |
| | B) | 125 J |
| | C) | 250 J |
| | D) | 9.33 J |
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