# Kidscience: Calculating Speed

5 Questions | Total Attempts: 1171  Settings  Speed, being a scalar quantity, is the rate at which an object covers distance. The average speed is the distance per time ratio. Have you just learnt how to measure speed? Take this Kid science: Calculating Speed quiz and see if you know how to calculate speed given the examples below.

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• 1.
Snail Motion  Time (Hours) Distance (centimeters) 2 50 4 90 6 130 8 180What is the speed of the snail at 2 hours?
• A.

50 cm/hr

• B.

45 cm/hr

• C.

0.04 cm/hr

• D.

25 cm/hr

• 2.
Bob can run the 100 meter dash in 25 seconds.  What is his speed?
• A.

2500 meters/sec

• B.

4 miles/hr

• C.

4 meters/sec

• D.

2500 miles/hr

• 3.
Time (sec) Distance (m) 0 0 5 10 10 10 15 30 Which of the following statements is true?
• A.

The object did not stop between 0 and 15 seconds.

• B.

The speed of the object at 5 seconds was 0.5 m/sec.

• C.

The object had the greatest speed between 0 and 5 seconds.

• D.

None of the above.

• 4.
Time (hour) Distance (miles) 0 0 1 100 2 200 3 300 What is the average speed of the object?
• A.

10 mi/hr

• B.

30 mi/hr

• C.

100 mi/hr

• D.

.01 mi/hr

• 5.
: Time (minutes) Distance (miles) 5 0 10 0 15 0 20 20Which of the following describes the motion of the object?
• A.

The speed at 20 minutes was 1 minute per mile.

• B.

The object did not move between 5 and 15 minutes.

• C.

The graph would show a horizontal line and then the line would go up.

• D.

None of the above

• E.

All of the above