# 4.1 Speed Mastery Check

## Quiz by Macie Morris

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14 questions

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- Q1Which of the following factors affect an object's speed?Distance only.Time only.Both distance and time.Neither distance nor time.30s
- Q2What is the SI unit for speed?Meter per secondMeter per hourKilogram per secondKilometer per hour30s
- Q3What is the formula to calculate average speed?Total distance divided by total timeTotal distance times total timeTotal distance divided by total velocityTotal time minus total distance30s
- Q4Which of the following is an example of instantaneous speed?The speed limit on a highwayThe speedometer reading of a car at a particular momentThe speed of light in a vacuumThe average speed of a car over a long trip30s
- Q5A 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/h36 km/h48 km/h64 km/h30s
- Q6A 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/h21 km/h48 km/h30 km/h30s
- Q7A train travels a distance of 500 kilometers in 4 hours. What is the average speed of the train?200 km/h125 km/h100 km/h150 km/h30s
- Q8Which 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
- Q9In 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
- Q10What 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
- Q11What 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
- Q12On a distance-time graph, what does a steeper line indicate?Changing direction.Faster speed.Constant speed.Slower speed.30s
- Q13What does a horizontal line on a distance-time graph with a positive slope indicate?Constant speed.Decelerating motion.Accelerating motion.Changing direction.30s
- Q14What 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