# 4.1 Speed Mastery Check

## Quiz by Macie Morris

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14 questions
• Q1
Which of the following factors affect an object's speed?
Distance only.
Time only.
Both distance and time.
Neither distance nor time.
30s
• Q2
What is the SI unit for speed?
Meter per second
Meter per hour
Kilogram per second
Kilometer per hour
30s
• Q3
What is the formula to calculate average speed?
Total distance divided by total time
Total distance times total time
Total distance divided by total velocity
Total time minus total distance
30s
• Q4
Which of the following is an example of instantaneous speed?
The speed limit on a highway
The speedometer reading of a car at a particular moment
The speed of light in a vacuum
The average speed of a car over a long trip
30s
• Q5
A car travels at a speed of 60 km/h for 2 hours and then at a speed of 40 km/h for 3 hours. What is the average speed of the car for the entire journey?
54 km/h
36 km/h
48 km/h
64 km/h
30s
• Q6
A runner completes a race in 2 hours and covers a total distance of 42 kilometers. What is the average speed of the runner?
12 km/h
21 km/h
48 km/h
30 km/h
30s
• Q7
A train travels a distance of 500 kilometers in 4 hours. What is the average speed of the train?
200 km/h
125 km/h
100 km/h
150 km/h
30s
• Q8
Which of the following statements is true about distance-time graphs?
The steeper the line, the slower the object is moving.
The slope of the line represents the speed of an object.
Distance is always measured on the x-axis and time on the y-axis.
Distance and time have a linear relationship in all cases.
30s
• Q9
In a distance-time graph, what does a curved line indicate?
The object is at rest.
Changing speed.
The object is moving at a constant speed.
The object is moving in a straight line.
30s
• Q10
What does a horizontal line on a distance-time graph indicate?
The object is at rest.
The object is accelerating.
The object is moving at a constant speed.
The object is moving in the opposite direction.
30s
• Q11
What does a downward sloping line on a distance-time graph indicate?
The object is returning to its starting point.
The object is accelerating.
The object is moving at a constant speed.
The object is moving away from its starting point.
30s
• Q12
On a distance-time graph, what does a steeper line indicate?
Changing direction.
Faster speed.
Constant speed.
Slower speed.
30s
• Q13
What does a horizontal line on a distance-time graph with a positive slope indicate?
Constant speed.
Decelerating motion.
Accelerating motion.
Changing direction.
30s
• Q14
What does a vertical line on a distance-time graph indicate?
The object is not moving.
The object is accelerating.
The object is changing direction.
The object is moving at a constant speed.
30s

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