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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 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
True or False? 20 questions.
Addition 1’s to 20.
0 - 0.
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We will resume in: 25 Minutes.
Electromagnetic spectrum Light is just a small part of the electromagnetic spectrum. Microwaves, infra-red radiation and x-rays are other parts. The various.
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