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Edexcel IGCSE Physics Precise Observations and Measurements Questions

Practise Edexcel IGCSE Physics precise observations and measurements by reading instruments, choosing apparatus and presenting measured data clearly.

Syllabus
Issue 4 (2024)
Course
Physics 4PH1

Exam points

  • Describe how to measure a height or angle accurately using suitable apparatus and alignment.
  • Read an analogue scale or meter carefully and give the recorded value.
  • Draw a results table with the measured quantity, appliance or object, and correct unit heading.

Edexcel IGCSE Physics Precise Observations and Measurements Questions question 1

[Maximum number: 2]

Diagram 1 shows the apparatus a student uses to investigate the bending of a wooden strip.

Part of the wooden strip is clamped to a table.
A load is fixed to the free end of the wooden strip, causing it to bend.

Diagram 1

Diagram 1

The free end of the wooden strip is positioned a length, L , beyond the edge of the table, as shown in diagram 1.

The weight of the load causes the end of the wooden strip to move down through a height, h.

A student investigates how the length, L , affects the height, h .

This is the student's method for the investigation.
- clamp the wooden strip so that L=20 cm\mathrm{L}=20 \mathrm{~cm}
- fix the load to the end of the wooden strip, as shown in diagram 1
- measure the height, h

The student repeats this method for different values of L.

Suggest how the student could accurately measure the height, h .

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