1. (#260] Thunder and lightning. You see a sudden flash of light, then 6 seconds later you hear the thunder. Take the speeds of sound and light as 340 m s-and 3 10 m s respectively. How far away away was the lightning strike? Remember to think about significant figures. The lightning strike was km away. (A reminder: This test is for assessment and, because the course runs on-demand, we cannot give you the answers and so you will not receive feedback on this test. If you can't do a question and you need feedback, we suggest that you go review the relevant lesson and ther do the quiz: the quiz questions do have feedback.) Enter answer here 29°C Haze
Properties of sound
A sound wave is a mechanical wave (or mechanical vibration) that transit through media such as gas (air), liquid (water), and solid (wood).
Quality Of Sound
A sound or a sound wave is defined as the energy produced due to the vibrations of particles in a medium. When any medium produces a disturbance or vibrations, it causes a movement in the air particles which produces sound waves. Molecules in the air vibrate about a certain average position and create compressions and rarefactions. This is called pitch which is defined as the frequency of sound. The frequency is defined as the number of oscillations in pressure per second.
Categories of Sound Wave
People perceive sound in different ways, like a medico student takes sound as vibration produced by objects reaching the human eardrum. A physicist perceives sound as vibration produced by an object, which produces disturbances in nearby air molecules that travel further. Both of them describe it as vibration generated by an object, the difference is one talks about how it is received and other deals with how it travels and propagates across various mediums.
![1. [#260] Thunder and lightning.
You see a sudden flash of light, then 6 seconds later you hear the thunder. Take the speeds of sound and light as 340 m·sland 3 x
10° m s, respectively. How far away away was the lightning strike? Remember to think about significant figures.
The lightning strike was
km away.
(A reminder: This test is for assessment and, because the course runs on-demand, we cannot give you the answers and so you will not
receive feedback on this test. If you can't do a question and you need feedback, we suggest that you go review the relevant lesson and then
do the quiz: the quiz questions do have feedback.)
Enter answer here
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