This checkpoint tests Block B: light waves, colour and the eye, the electromagnetic spectrum, applications of waves, and wave investigations.
This checkpoint assesses your understanding of light, colour, the electromagnetic spectrum and wave applications.
Light waves: reflection, refraction, absorption, transparent vs opaque materials.
Colour and the eye: primary colours, colour mixing, structure and function of the eye.
The electromagnetic spectrum: order, wavelength, frequency, energy, sources.
Applications of waves: communication, medicine, remote sensing, Australian innovations.
Wave investigations: designing fair tests, controlling variables, analysing data.
1. Light is an example of which type of wave?
2. Which colour of visible light has the longest wavelength?
3. Which part of the eye contains cells that detect light?
4. The primary colours of light are...
5. Which type of electromagnetic radiation has the highest frequency?
6. Which EM wave is commonly used in microwave ovens and mobile phone towers in Australia?
7. A student notices that her skin burns after spending two hours at an Australian beach on a summer day. Which type of radiation is most responsible?
8. Which application uses X-rays?
9. All electromagnetic waves travel through a vacuum at approximately...
10. Two students are designing an investigation to see how the angle of incidence affects the angle of reflection. Which variable should they keep constant?
11. Describe how the human eye detects colour. Include the roles of cones, the retina and the brain in your answer. 4 MARKS
12. Compare infrared and ultraviolet radiation in terms of wavelength, frequency and one practical application of each. 4 MARKS
13. A student shines white light through a glass prism and observes a spectrum on a screen. Explain why this happens and list the colours of the visible spectrum in order from longest to shortest wavelength. 4 MARKS
Tick when you have finished all questions and reviewed your answers.