⏱️ Part 1: Basic Time Conversions

1. Convert 3.5 minutes to seconds. Show your working.

2. A marathon runner completes the race in 2 hours, 45 minutes and 30 seconds. Express this time in:

a) Total seconds: ________________

b) Total minutes (as a decimal): ________________

3. Convert 8,750 milliseconds to seconds (express as a decimal):

🏃‍♂️ Part 2: Sporting Events & Precision

4. In a 100m sprint, the winning times were recorded as:

• Runner A: 9.87 seconds

• Runner B: 9,920 milliseconds

• Runner C: 9.91 seconds

a) Convert Runner B's time to seconds: ________________

b) Who won the race? ________________

c) What was the time difference between 1st and 3rd place (in milliseconds)? ________________

5. A swimmer's lap times are recorded in milliseconds. Convert each to seconds (as decimals):

Lap 1: 28,450 ms = ________ seconds

Lap 2: 29,120 ms = ________ seconds

Lap 3: 28,890 ms = ________ seconds

Total time in minutes (as a decimal): ________________

🧮 Part 3: Multiple Choice Challenge

6. Which of these is equivalent to 4.25 minutes?

4 minutes 25 seconds

4 minutes 15 seconds

255 seconds

425 seconds

7. A reaction time of 0.285 seconds is the same as:

28.5 milliseconds

285 milliseconds

2,850 milliseconds

0.285 milliseconds

8. Select ALL the times that are greater than 2.5 minutes:

150 seconds

2 minutes 45 seconds

140,000 milliseconds

2.4 minutes

155 seconds

🏆 Part 4: Real-World Applications

9. A Formula 1 car completes a lap in 1 minute, 23.456 seconds. The track record is 82.890 seconds.

a) Convert the car's lap time to seconds: ________________

b) How much slower was this lap compared to the record (in milliseconds)? ________________

10. Match each time measurement with its most appropriate use:

1. Milliseconds

2. Seconds

3. Minutes

4. Hours

A. Cooking pasta

B. Olympic sprint times

C. School day duration

D. Holding your breath

11. Challenge Problem: A cyclist's training session data shows:

• Warm-up: 12.5 minutes

• Main workout: 2,850 seconds

• Cool-down: 8 minutes 30 seconds

Calculate the total training time in:

a) Minutes (as a decimal): ________________

b) Hours and minutes: _______ hours _______ minutes

💭 Part 5: Problem Solving

12. Explain why milliseconds are important in competitive sports. Give two specific examples.

13. Create your own time conversion problem involving at least three different units (seconds, minutes, milliseconds). Then solve it.

Your problem:

Your solution:

Time Conversion Challenge

Time Conversion Challenge

⏱️ Part 1: Basic Time Conversions

🏃‍♂️ Part 2: Sporting Events & Precision

🧮 Part 3: Multiple Choice Challenge

🏆 Part 4: Real-World Applications

💭 Part 5: Problem Solving

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