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True or False? 20 questions
Question 1 Sound is a transverse wave False its longitudinal!
Question 2 Waves are vibrations True!
Question 3 Amplitude is the maximum distance from the normal of a wave True!
Question 4 Frequency is measured in Lambda ( ) False! It is measured in Hertz!
Question 5 Radio 1 FM (88-91MHz) has a shorter wavelength that BBC 5 Live MW (693-909 kHz) False!
Question 6 You cannot reflect all waves False! It is a property of waves!
Question 7 All waves are visible False! Think of the Electromagnetic waves!
Question 8 Diffraction is where waves change direction due to a change in speed False! This would be refraction!
Question 9 A Tsunami is made of lots of little waves creating one big wave as in interference of waves False!
Question 10 In sound the higher the frequency the higher the note True!
Question 11 A wave will travel faster in a more dense material False! It will travel slower!
Question 12 Gamma radiation has the highest frequency of the waves in the electromagnetic spectrum True!
Question 13 All waves of the electromagnetic spectrum can pass through the body False! What about light?
Question 14 In stars a red giant is hotter than a blue dwarf and has a higher frequency False! Blue hot is hotter than orange hot and gives off a higher frequency!
Question 15 Waves can go around corners False! They travel in straight lines! (Unless they diffract!)
Question 16 Digital signals have a range of frequencies False! Digital signals don’t have a frequency in the sense we use it here.
Question 17 Optical fibres use dispersion to transfer from one end to the other False! They use Total Internal Reflection!
Question 18 When sunlight passed through a raindrop it splits into a spectrum of colours. This is because sunlight is made up of different frequencies and wavelengths. True!
Question 19 A “ noisy” wave is a bad thing. Noise is interference but can be corrected. True!
Question 20 Write down as many uses of each type of wave as you can
True or False? 20 questions. Question 1 Sound is a transverse wave.
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Physical Science: Optics Outcome C1. Properties of waves –Light is a type of electromagnetic energy which travels in a wave at the speed of 300, 000 km/s.
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