Question 1 Multiple Choice
A student measures that a toy car travels 3 meters in 6 seconds. What is the car's speed?
A18 meters per second
B3 meters per second
C0.5 meters per second
D2 meters per second
Speed = distance ÷ time = 3 meters ÷ 6 seconds = 0.5 meters per second.
Question 2 True / False
To calculate speed, you primarily need to know the distance an object traveled.
Answer: False
You need both distance and time. Speed is distance divided by time, so without the time measurement, you cannot calculate speed.
Question 3 Short Answer
Why might two students get slightly different speed measurements for the same toy car?
Think about your answer, then reveal below.
Model answer: They may have started or stopped their stopwatches at slightly different moments, or measured the distance slightly differently.
Small differences in reaction time and measurement precision cause slight variations in results.