Edexcel IGCSE Physics Geometry and Trigonometry
Practise Edexcel IGCSE Physics geometry and trigonometry by measuring angles, using scale diagrams and estimating areas from grids.
- Syllabus
- Issue 4 (2024)
- Course
- Physics 4PH1
Exam points
- Measure an angle of incidence accurately from a ray diagram or choose the correct value.
- Use a diagram scale factor to convert a measured height into a laboratory value.
- Estimate an area by counting grid squares and multiplying by the area of one square.
Covered syllabus points
5 Geometry and trigonometry question 1
The diagram shows the path of a ray of light.
Measure the angle of incidence for the ray at point K.
Which of these is the angle of incidence?
A
43 degrees
B
47 degrees
C
51 degrees
D
55 degrees
5 Geometry and trigonometry question 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
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 .
The table shows the results of the investigation.
Diagram 2 shows the wooden strip when .
Diagram 2
Using diagram 2, determine the height, h, in the laboratory.
[1 cm on the diagram = 10 cm in the laboratory]
height, h=
cm
5 Geometry and trigonometry question 3
A student investigates how much pressure she exerts on the ground when she is standing up.
The student measures the area of one of her feet when it is in contact with the ground. She draws around her foot on a piece of squared paper.
The squares on the paper have a side length of 2 cm.
Estimate the area of the student's foot in contact with the ground.
area = ............ cm^2
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