Edexcel A-Level Physics A2 C 4 Geometry and Trigonometry Questions

Review geometry and trigonometry in Edexcel A-Level Physics through areas, volumes, right-angle checks, angular estimates and radian conversion.

Exam points

calculate physical areas or volumes using circles, cylinders and measured dimensions
use Pythagoras or trigonometry to check right angles, gradients or projected sizes
convert phase or angle values from degrees to radians using the correct 2π/360 factor

Covered syllabus points

C.4.1—Angles in regular structures C.4.2—Representing two- and three-dimensional forms C.4.3—Areas and volumes C.4.4—Pythagoras and triangle angles C.4.5—Trigonometry in physical problems C.4.6—Small-angle approximations C.4.7—Degrees and radians

[Maximum number: 2]

A student made measurements of the plastic protractor shown.

Figure for Question 1 — Edexcel A-Level Physics A2

The student determined the volume V of the plastic protractor from the measurements shown.
The student recorded the following measurements.
D = 10.10 cm ± 0.05 cm
x = 4.5 mm ± 0.1 mm
t = 1.40 mm ± 0.02 mm

Show that V is about $6.2 \mathrm{~cm}^{3}$ .

[Maximum number: 1]

Two sources produce waves with a phase difference of $40^{\circ}$ .
Which of the following gives the angle of $40^{\circ}$ in radians?

$\frac{40 \times 2 \pi}{360}$

$\frac{360}{40 \times 2 \pi}$

$\frac{40 \times \pi}{360}$

$\frac{360}{40 \times \pi}$

All question bank results loaded

Covered syllabus points

Question 1

Question 2