1. True or False? 20 questions

2. Question 1 Sound is a transverse wave

3. Question 2 The human ear can detect sound waves as low as 10Hz

4. Question 3 Amplitude is the maximum distance from the normal of a wave

5. Question 4 Frequency is the maximum disturbance in the wave.

6. Question 5 For a light ray reflected by a mirror, angle of incidence is greater than the angle of reflection.

7. Question 6 You cannot reflect all waves

8. Question 7 All waves are visible

9. Question 8 A virtual image can be projected onto a screen.

10. Question 9 If you see a tall, thin image of yourself, you are looking in a convex mirror.

11. Question 10 In sound the higher the frequency the higher the note

12. Question 11 A wave will travel faster in a less dense material

13. Question 12 A concave mirror always forms a real image

14. Question 13

15. Question 14 In stars a red giant is hotter than a blue dwarf and has a higher frequency

16. Question 15 Waves can go around corners

17. Question 16 Digital waves have a range of frequencies

18. Question 17 Optical fibres use dispersion to transfer from one end to the other

19. Question 18 When sunlight passed through a raindrop it splits into a spectrum of colours. This is because light has different frequencies and wavelengths.

20. Question 19 A “ noisy” wave is a bad thing. Noise is interference but can be corrected.

21. Question 20 Write down as many uses of each type of wave as you can