Sound Questions and Answers

0 votes

6 answers

why the bulb of the thermometer is blackened

asked Feb 11, 2022 in Physics Form 2 by iqrosi44

0 votes

1 answer

A person stands between two high walls d metres apart. He stands 400m from the nearer wall. He blows a whistle and hears two echoes, the first one after 2.5 seconds and the second one 2 seconds later. Determine:

asked Aug 23, 2021 in Physics Form 2 by anony mous

0 votes

3 answers

Define an echo.

asked Aug 23, 2021 in Physics Form 2 by anony mous

0 votes

1 answer

A man standing at the middle of two parallel walls fires a gun. He hears an echo after 1.5 seconds. Determine the distance of separation of the walls.

asked Aug 18, 2021 in Physics Form 1 by anonymous

0 votes

4 answers

A person stands between two vertical cliffs 400m from the nearer cliff. The cliffs are x distance apart. Every time the person strikes the rock once, two echoes are heard, the first one after 2.5s and the second one 2.0 s later. Calculate

asked Aug 5, 2021 in Physics Form 2 by anony mous

0 votes

1 answer

A boy whistles once at a distance 250 m from a vertical cliff. If the temperature in the surrounding is 50C .If the speed of sound = (331.5m/s at 00c) the speed in air increases at about 0.6 m/s per 0C,

asked Jul 29, 2021 in Physics Form 3 by anonymous

0 votes

1 answer

Wambua strikes a steel super bridge with a hammer. If the speed of sound in steel is 5,200 m/s, determine the time taken for the sound to reach another Samuel 2.6 km far off the bridge with his ear on the rail.

asked Jul 29, 2021 in Physics Form 2 by anonymous

0 votes

1 answer

State two characteristics of sound waves.

asked Jul 29, 2021 in Physics Form 2 by anonymous

0 votes

1 answer

Explain how sound reaches our ears.

asked Jul 29, 2021 in Physics Form 2 by anonymous

0 votes

1 answer

A man standing 400 away from a wall bangs two pieces of wood together and hears an echo 2.5 seconds later. Determine the speed of sound in air at that place.

asked Jul 29, 2021 in Physics Form 1 by anonymous

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