Edexcel IGCSE Physics Precise Measurements
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.
Precise observations and measurements question 1
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
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
- 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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