True or False? 20 questions

Question 1 Sound is a transverse wave

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

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

Question 4 Frequency is the maximum disturbance in the wave.

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

Question 6 You cannot reflect all waves

Question 7 All waves are visible

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

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

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

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

Question 12 A concave mirror always forms a real image

Question 13

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

Question 15 Waves can go around corners

Question 16 Digital waves have a range of frequencies

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

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

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

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