Cambridge IGCSE Combined Science practice
Try the question first, then check the answer and practise the same topic again.
At a glance
MCQ
Type
cambridge_mcq
Style
Topic
Sound
Exam-style question
Why is it important to repeat measurements in an experiment?.
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Common mistake
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Flashcard 1 of 6
Question 1 of 5
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Method
In this experiment, you will measure the time it takes for a sound to travel a known distance in air.
| Step | Action |
|---|---|
| 1 | Set up a sound source and a distance measuring device. |
| 2 | Measure a distance of 100 meters. |
| 3 | Use a stopwatch to time how long it takes for the sound to reach the measuring device. |
| 4 | Record the time taken. |
Identify Identify the independent variable in this experiment.
Aim for approximately 1 distinct marking point.