Sound waves and reflection of sound. Science State Board, Class 10: lessons, tests, tasks.

1.	Introduction
2.	Sound waves and its type
3.	Factors affecting velocity of sound
4.	Velocity of sound waves
5.	Reflection of sound
6.	Reflection at the boundary of a denser and rarer medium
7.	Reflection of sound in plane and curved surfaces
8.	Echoes
9.	Measuring velocity of sound waves using echo method
10.	Applications: Reflection of sound waves
11.	Doppler effect
12.	Expression for apparent frequency due to doppler effect
13.	Numericals based on doppler effect
14.	Applications of Doppler effect
15.	Mind map

1.	Formula and unit Difficulty: easy	4
2.	Vibrating part of musical instruments Difficulty: easy	2
3.	Numericals based on Time period and frequency Difficulty: easy	2
4.	Sound waves and their nature Difficulty: easy	2
5.	Velocity of sound waves Difficulty: easy	4
6.	Sound range Difficulty: medium	3
7.	Types of sound waves Difficulty: medium	3
8.	Wavelength of a sound wave Difficulty: medium	3
9.	Nature and speed of the sound wave Difficulty: medium	4
10.	Riddles on sound waves Difficulty: medium	4
11.	Numerical based on time period Difficulty: medium	3
12.	Basics of acoustics Difficulty: medium	2
13.	Comparison between light and sound Difficulty: medium	3
14.	Sound- Match the right terms Difficulty: medium	4
15.	Amplitude and frequency Difficulty: medium	2
16.	Assertion and reasoning type excercise Difficulty: medium	6
17.	Range of sound waves Difficulty: medium	3
18.	Numerical based on SONAR Difficulty: medium	4
19.	Numerical based on the speed of the sound wave Difficulty: medium	4
20.	Numerical based on the time period Difficulty: medium	4
21.	Numerical based on the wavelength of a sound wave Difficulty: medium	3
22.	Speed of sound waves in water Difficulty: medium	4

1.	Numerical to find the height of the cloud Difficulty: medium	4
2.	Speed of the sound in air Difficulty: hard	5
3.	Time of splash Difficulty: hard	8
4.	Apparent frequency of a sound wave Difficulty: hard	10
5.	Numerical based on speed of sound Difficulty: hard	5

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Methodical recommendation

Sound waves and reflection of sound