Conceptual Physics, 11e (Hewitt)
Double-Answer Multiple Choice Questions on Various Topics
Questions About Vectors
Figure V-1
1) A block is pulled across a floor as shown in the vector diagram. The force vector F has the greater component in the
1) horizontal direction,
2) vertical direction,
and this component is
3) larger than the vector F.
4) smaller than the vector F.
5) equal to the vector F.
Answer: 1, 4
Diff: 1
Topic: Questions About Vectors
Figure V-2
2) A block is pulled across a floor as shown in the vector diagram. The greater component of the vector lies in the
1) horizontal direction,
2) vertical direction,
although both horizontal and vertical components would be of equal magnitude if vector F were
3) horizontal.
4) vertical.
5) at an angle of 45°.
Answer: 2, 5
Diff: 1
Topic: Questions About Vectors
Figure V-3
3) The weight of the barrel on the slope is shown by the vector which has components (not shown) parallel to the surface of the incline and perpendicular to the surface of the incline. Judging from the slope of incline, the greater of these two components is the one which is
1) parallel to the slope.
2) perpendicular to the slope.
3) both the same.
4) not enough information is given to say.
If the slope of the incline were steeper, this component vector would
5) decrease.
6) remain the same.
7) increase.
8) again, can't really say.
Answer: 2, 5
Diff: 1
Topic: Questions About Vectors
Figure V-4
4) Which of the sailboats shown sails the fastest in its forward direction?
1) 1
2) 2
3) 3
4) 4
It is interesting to note that
5) this is the only boat that sails forward.
6) only two of the boats sail forward.
7) three out of the four boats sail forward.
8) all sail forward, but at different speeds.
Answer: 1, 5
Diff: 2
Topic: Questions About Vectors
Figure V-5
5) A small railroad car is pulled by a rope as shown in the sketch (top view). The force F that the rope exerts on the car actually has a component along the track and another component perpendicular to the track. Judging from the diagram, the larger of these two components would be
1) along the track.
2) perpendicular to the track.
These components will be equal if
3) the rope makes an angle of 45° with the track.
4) the rope is pulled in a direction along the track, rather than at an angle to it.
5) they form an action-reaction pair on the car.
6) but they can never really be equal.
Answer: 2, 3
Diff: 2
Topic: Questions About Vectors
Figure V-6
6) The boat that will sail the fastest and in the intended direction is
1) 1,
2) 2,
3) 3,
4) 4,
and the boat that will respond least to the wind is
5) 1.
6) 2.
7) 3.
8) 4.
Answer: 2, 5
Diff: 2
Topic: Questions About Vectors