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Distance Velocity Acceleration Basics
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1
Question
What is distance in the distance vs displacement comparison?
Answer
Total path length travelled between two points
2
Question
What is displacement in the distance vs displacement comparison?
Answer
Straight-line distance from initial to final position
3
Question
What is the SI unit for distance and for displacement?
Answer
Metre (m) for both
4
Question
What is velocity defined as?
Answer
Rate of change of displacement
5
Question
Is velocity a scalar or vector quantity?
Answer
Vector
6
Question
What does acceleration measure?
Answer
Rate of change of velocity
7
Question
Is acceleration a scalar or vector quantity?
Answer
Vector
8
Question
What is the formula for velocity given displacement and time?
Answer
Velocity = displacement travelled ÷ time taken
9
Question
What is the formula for acceleration?
Answer
Acceleration = change in velocity ÷ time taken
10
Question
In a distance-speed-acceleration-time problem, how is average speed defined?
Answer
Total distance divided by total time
11
Question
What is the formula for speed in distance-time problems?
Answer
v = d / t
12
Question
In a pigeon flight example, how is distance calculated from speed and time?
Answer
d = v × t
13
Question
What is the equation to relate acceleration to change in velocity over time?
Answer
a = Δv / t
14
Question
What does a distance-time graph with steeper gradient indicate?
Answer
Faster speed (greater velocity)
15
Question
What does a distance-time graph plot on the x-axis and y-axis?
Answer
Time on the x-axis; distance on the y-axis
16
Question
What does a straight line on a distance-time graph indicate about speed?
Answer
Constant speed
17
Question
How is speed obtained from a distance-time graph?
Answer
Gradient of the line (rise over run)
18
Question
In a distance-time graph, what does a horizontal line represent?
Answer
No distance change; stationary period
19
Question
What is the formula for average speed using distance and time?
Answer
Speed = distance/time (v = s/t)
20
Question
If a distance-time graph shows a line from (0,0) to (6,4) in cm and seconds, what is the average speed?
Answer
4 cm / 6 s = 0.667 cm/s (approximately)
21
Question
What does the gradient of a distance-time graph correspond to physically?
Answer
Speed of the object
22
Question
What would a distance-time graph with a steeper gradient indicate compared to a less steep one?
Answer
Faster speed
23
Question
How would you represent a stop in motion on a distance-time graph?
Answer
Horizontal segment (zero slope)
24
Question
In the given toy train example, what is the velocity during 0 to 6 s?
Answer
0.68 cm/s (from described segment)
25
Question
What is the relationship between distance s and time t in the basic formula v = s/t?
Answer
Average speed times time equals distance (s = v t)
26
Question
What is the meaning of a piecewise linear distance-time graph?
Answer
Different constant speeds in different time intervals
27
Question
From (0,0) to (6,4), what is the slope (velocity) of the first segment?
Answer
Velocity = 4/6 = 0.667 cm/s
28
Question
What does the horizontal segment from t=6 to t=10 s indicate about motion during that interval?
Answer
The train is at rest (zero velocity)
29
Question
What is the velocity of the third segment from (10,4) to (14,10)?
Answer
Velocity = (10-4)/(14-10) = 6/4 = 1.5 cm/s
30
Question
What is the total time interval covered by the three segments?
Answer
14 seconds