9637519
Descripción
Test por Anibal Santamaria, actualizado hace más de 1 año
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Creado por Anibal Santamaria
hace casi 7 años
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Pregunta 1
Pregunta
A teacher does the following:
i. walks 2 m, south
ii. walks 4 m, east
iii. walks 2 m, north
iv. walks 4 m, west.
The overall distance traveled by the teacher is _____.
Respuesta
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0 m
-
6 m
-
12 m
-
... Nonsense! It cannot be calculated without knowing time information.
Pregunta 2
Pregunta
In terms of their definitions, an essential difference between displacement and distance is that _____.
Respuesta
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distance has a direction and displacement has no direction
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distance is a large number and displacement is a small number
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distance is a scalar and displacement is a vector
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displacement is a scalar and distance is a vector
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none of these
Pregunta 3
Pregunta
For any given motion, the distance is _____.
Respuesta
-
the direction which an object moves
-
the scalar of the object's velocity
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how far out of place which the object finishes relative to the starting location
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the amount of ground which is covered by the moving object
-
none of these
Pregunta 4
Pregunta
A football coach starts at the 50-yard line (A) and walks east to the 10-yard line (B). He turns around and walks to the 40-yard line (C). He turns around again and walks back to the 0-yard line (D). He turns around once more and walks back to the 30-yard line (E, thus completing his 10 minutes of pacing.
The couach's overall displacement is _____.
Respuesta
-
20 yd, east
-
20 yd, west
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20 yd
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50 yd, east
-
50 yd, west
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50 yd
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70 yd, east
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70 yd, west
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70 yd
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80 yd, east
Pregunta 5
Pregunta
Grandma H challenges Michael Johnson in the 400-meter dash. Grandma H spins her wheelchair wheels five times and gives up 15 meters from the starting line. MJ makes a complete circle around the track and stops at the starting line. In this race, _____.
Respuesta
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their distance values are the same
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grandma Henderson has the greatest distance
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Michael Johnson has the greatest distance
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Neither has any distance since they start at rest and each eventually stop.
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None of these.
Pregunta 6
Pregunta
A football coach starts at the 10-yard line and walks east to the 40-yard line. He turns around and walks to the 0-yard line. He turns around again and walks back to the 50-yard line. He turns around once more and walks back to the 25-yard line, thus completing his 10 minutes of pacing.
The coach's overall distance is _____.
Respuesta
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15 yd
-
50 yd, east
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50 yd
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60 yd, west
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60 yd
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85 yd, east
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85 yd
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145 yd, west
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145 yd
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none of these
Pregunta 7
Pregunta
A teacher does the following:
i. walks 4 m, south
ii. walks 8 m, east
iii. walks 4 m, north
iv. walks 8 m, west.
The overall displacement of the teacher is _____.
Respuesta
-
0 m
-
6 m
-
12 m
-
... Nonsense! It cannot be calculated without knowing time information.
Pregunta 8
Pregunta
For any given motion, displacement is _____.
Respuesta
-
the direction which an object moves
-
the magnitude which the object moves
-
how far out of place which the object finishes relative to the starting location
-
the amount of ground which is covered by the moving object
-
None of these.
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