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Speed of Sound and Temperature.

February 9, 2023 Math teacher In Richmond Hill, Physics Grade 11 0

Sound needs a medium to travel. The speed of sound needs a medium to carry on their wave.

When the temperature of the medium increases the molecules have more energy as a result molecules move faster so the speed of sound can travel faster.

The speed of sound in air at 0 ˚c is 346 m/s.

so

V=346°c

If air temperature increases by 1°c the speed increase by 0.606

So our formula will be

V=331.4m/s+(0.606m/s/˚c)T

Which T indicates the temperature of its units in Celsius.

Example:

Determine the speed of sound at 45.0˚c

Given:T=45.0˚c

Formula:

V=331.4m/s+(0.606m/s/˚c)T

V=331.4m/s+(0.606m/s/˚c)45      (substitude the T in formula)

V=358.67 m/s

Do you struggle with problem-solving in physics

July 4, 2020 Math teacher In Richmond Hill, Physics, Physics Grade 11 0

Most of the students are struggling with problem_solving in physics One of the main reason is that they do not know about the relation between the formula and the question. There is one method that leads you to find the answer. This method is knowing that answer is inside the question so read the question, Start to write your data or given then you can find suitable formula from your formula sheets( that formula which include all your given is the best formula), if you live in ontario you have formulla sheet when you have exam. But maybe in other places maybe you should memorize the fotmula dependent to where you live.After finding sepecific formula, substitute the number inside the formula, just be careful about the unit of each term.

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