P6 The wave model of radiation Answers without questions POSSIBLE SOLUTIONS Possible question Answer How can you measure the wavelength of a Measure the distance between consecutive transverse wave? peaks or consecutive troughs with a ruler. Is a Mexican wave transverse or This is an example of a transverse wave. longitudinal? As you increase the frequency of a wave The wavelength will get less. what happens to its wavelength? How can you measure the wavelength of a Measure between consecutive longitudinal wave? compressions or consecutive rarefactions with a ruler. What is Diffraction? This is when a wave travels through a narrow gap and spreads out afterwards. What family of waves does Infra red come The electromagnetic spectrum. from? Which type of wave from the X-rays can be used for this. electromagnetic spectrum can be used by doctors to find out if a person has broken a bone? Is a sound wave longitudinal or transverse? This is an example of a longitudinal wave. What is reflection? This is where a wave hits an object and bounces back from it. The angle i= the angle r. What could be used to detect visible light? The human eye can me used for this. Which member of the electromagnetic Gamma radiation is produced by these spectrum is often emitted from radioactive materials. materials? What is refraction? This is where a wave changes direction as it travels from one medium to another. It is accompanied by a change of speed. Why does your car radio sometimes crackle This is caused by interference between as you drive along? waves from two radio transmitters. In what form is DAB radio data It is transmitted as a binary code consisting transmitted? of a string of 1’s and 0’s. How can we use radio waves to search for We use huge radio telescopes for this. extra terrestrial intelligence? They “listen” for transmissions from the stars that show signs of intelligence.
Pages to are hidden for
"P5 Electrical circuits - DOC"Please download to view full document