Distance Displacement Speed And Velocity
Simple questions about moving objects.
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Questions and Answers
- 1.
The difference between velocity and speed is that .....
- A.
Speed is a scalar, velocity is a vector
- B.
Speed is a vector, velocity is a scalar
- C.
Speed with a particular force
- D.
Speed after a certain distance
Correct Answer
A. Speed is a scalar, velocity is a vectorExplanation
Speed is a scalar quantity because it only considers the magnitude of the motion, while velocity is a vector quantity because it considers both magnitude and direction of the motion. Scalar quantities have only magnitude, such as distance or time, while vector quantities have both magnitude and direction, such as displacement or velocity. Therefore, the difference between velocity and speed lies in the fact that speed is a scalar while velocity is a vector.Rate this question:
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- 2.
A vector quantity differs from a scalar in that a vector always includes..
- A.
Magnitude of distance
- B.
Time
- C.
Magnitude and direction
- D.
Size and unit of measurement
- E.
Speed
Correct Answer
C. Magnitude and directionExplanation
A vector quantity differs from a scalar in that a vector always includes magnitude and direction. Unlike a scalar, which only has magnitude (such as distance or time), a vector has both magnitude (size or amount) and direction. This means that a vector not only tells us the quantity or value but also the direction in which it is acting or moving.Rate this question:
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- 3.
A cyclist travels 125km in 5hours. How fast is the cyclist moving?
- A.
25 mph
- B.
25km/h
- C.
0.04mph
- D.
0.04km/h
- E.
625km/h
Correct Answer
B. 25km/hExplanation
The cyclist is traveling at a speed of 25km/h because they cover a distance of 125km in 5 hours. To calculate the speed, we divide the total distance by the total time taken, which gives us 25km/h.Rate this question:
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- 4.
A plane travels at 600km/h. How far will it travel in 3hr 15min?
- A.
185km
- B.
190km
- C.
1950km
- D.
1890km
Correct Answer
C. 1950kmExplanation
The plane is traveling at a speed of 600km/h. To find the distance it will travel in 3 hours and 15 minutes, we need to convert the minutes to hours. 15 minutes is equivalent to 0.25 hours. So, the total time is 3.25 hours. To find the distance, we multiply the speed by the time: 600km/h * 3.25h = 1950km. Therefore, the correct answer is 1950km.Rate this question:
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- 5.
A snail is crawling for 45s at a speed of 0.1cm/s. How far does it travel?
- A.
1.286m
- B.
450cm
- C.
4.5cm
- D.
45.35cm
- E.
1.575m
Correct Answer
C. 4.5cmExplanation
The snail is crawling for 45 seconds at a speed of 0.1 cm/s. To find the distance traveled, we can multiply the speed by the time. 0.1 cm/s * 45 s = 4.5 cm. Therefore, the snail travels a distance of 4.5 cm.Rate this question:
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- 6.
The journey from Winnipeg to Austin is 200km. If the train travels at 100km/h, how long will journey take?
- A.
20,000hrs
- B.
0.5 hrs
- C.
1.0 hrs
- D.
2.0 hrs
Correct Answer
D. 2.0 hrsExplanation
The journey from Winnipeg to Austin is 200km. If the train travels at 100km/h, it will cover a distance of 200km in 2 hours. This is because the time taken to complete a journey is equal to the distance divided by the speed. In this case, 200km divided by 100km/h equals 2 hours. Therefore, the journey will take 2.0 hours.Rate this question:
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- 7.
A sprinter runs the 200m at 8.6m/s. How long does she take to complete the race?
- A.
23.3s
- B.
23.3min
- C.
23.3hrs
- D.
0.043s
- E.
1720s
Correct Answer
A. 23.3sExplanation
The sprinter runs the 200m at a speed of 8.6m/s. To find the time taken to complete the race, we can use the formula: time = distance / speed. Plugging in the values, we get time = 200m / 8.6m/s = 23.3s. Therefore, it takes the sprinter 23.3 seconds to complete the race.Rate this question:
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- 8.
An upward, straight sloping line (left to right) on a distance time graph means:-
- A.
Speeding Up
- B.
Constant Speed
- C.
Slowing Down
- D.
Going Up hill
Correct Answer
B. Constant SpeedExplanation
An upward, straight sloping line on a distance-time graph indicates constant speed because the distance covered is increasing at a steady rate over time. If the line was sloping upwards but becoming steeper, it would indicate speeding up. If the line was sloping upwards but becoming less steep, it would indicate slowing down. However, since the line is straight and upward, it suggests that the object is moving at a constant speed. The graph does not provide information about going uphill or downhill, only the rate at which the distance is changing over time.Rate this question:
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- 9.
A flat, non-sloping line on a distance time graph means:-
- A.
No Speed
- B.
Slowing Down
- C.
Going Down Hill
- D.
Acceleration
Correct Answer
A. No SpeedExplanation
A flat, non-sloping line on a distance-time graph indicates that there is no change in the distance over time. This means that the object is not moving and therefore has no speed.Rate this question:
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- 10.
On a distance time graph if Line A has a steeper slope than Line B, then Object A has a__________ than Object B:-
- A.
Lesser Speed
- B.
Greater Speed
- C.
Same Speed
Correct Answer
B. Greater SpeedExplanation
If Line A has a steeper slope than Line B on a distance-time graph, it indicates that Object A covers a greater distance in a shorter amount of time compared to Object B. This suggests that Object A has a greater speed than Object B.Rate this question:
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- 11.
A curved line which is getting steeper on a Distance-Time graph represents:-
- A.
Deceleration
- B.
Constant Speed
- C.
Acceleration
- D.
A Stationary Object
Correct Answer
C. AccelerationExplanation
A curved line on a Distance-Time graph represents a change in speed over time. If the line is getting steeper, it means that the speed is increasing at a faster rate, indicating acceleration. Acceleration is the rate at which an object's velocity changes, either by speeding up or slowing down. Therefore, the correct answer is acceleration.Rate this question:
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- 12.
A flat, non-sloped line on a Velocity-Time graph represents
- A.
Constant Speed
- B.
No Speed
- C.
Constant Acceleration
Correct Answer
A. Constant SpeedExplanation
A flat, non-sloped line on a Velocity-Time graph represents constant speed because the velocity of an object remains unchanged over time. This means that the object is moving at a consistent rate without speeding up or slowing down. The flat line indicates that the object is maintaining a steady velocity throughout the given time period, indicating constant speed.Rate this question:
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