Rocket Experiment Data Analysis

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📚 Part 1: Multiple Choice

1. What was the main dependent variable measured in the rocket experiment?

Height reached (metres)

Flight time (seconds)

Colour of rocket

Mass of rocket (kg)

2. Which factor was deliberately changed between launches (the independent variable)?

Volume of water in the rocket (mL)

Rocket colour

Time of day

Type of safety gear used

3. Which safety item was most important for observers during launches?

Safety glasses

Oven mitts

Sunscreen

Stethoscope

4. Check all observations that were recorded for each launch:

Height reached (m)

Flight time (s)

Horizontal distance travelled (m)

Mass of rocket after launch (kg)

✏️ Part 2: Short Answers & Data Analysis

Experiment summary (12/03/2026, 22°C, wind ≈ 10 km/h):

Launch 1 — 50 mL water → height 18 m

Launch 2 — 75 mL water → height 35 m

Launch 3 — 100 mL water → height 29 m

Launch 4 — 125 mL water → height 42 m

Launch 5 — 150 mL water → height 38 m

5. Which volume of water produced the greatest height? Explain in one sentence.

6. Calculate the mean (average) height of the five launches. Show your working.

7. Calculate the range of heights. Is there an outlier? Explain briefly.

8. List two possible sources of experimental error and one improvement to make the results more reliable.

9. Sketch a simple graph showing water volume (x-axis) vs height (y-axis). Label the axes and draw the trend.

Rocket Experiment Data Analysis

Rocket Experiment Data Analysis

📚 Part 1: Multiple Choice

✏️ Part 2: Short Answers & Data Analysis

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