Question

6. The force acting on a unit area of a surface is known as …………….
7. The pressure when a force of 16N applied over an area of 4cm2 is ………….
8. 5cm2 =……………..m2
9. The loudness of sound depends on …………. Of the vibration
10.The pitch of sound depends on …………of the vibrations of the sound
producing object.​

Answer 1

Answer:-

1) The force acting on a unit area of a surface is known as …………….

Ans:- Pressure

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2) The pressure when a force of 16N applied over an area of 4cm2 is ………….

Ans:- conversion of unit

4cm² = 4/10000m² = 0.0004 m²

As we know that

• Pressure = Force/Area

Substitute the value we get

→ Pressure = 16/0.0004

→ Pressure = 40000 Pa

• Hence, the pressure is 40000 Pascal.

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3) 5cm2 =……………..m2

Ans:- We have to convert the cm² into m²

So we divide the given area by 10000 to change into m²

→ 5/10000

→ 0.0005m²

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4) The loudness of sound depends on …………. Of the vibration

Ans:- Amplitude

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5) The pitch of sound depends on …………of the vibrations of the sound producing object.

Ans:- Frequency

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Answer 2

Required Answer :-

6. The force acting on a unit area of a surface is known as

Pressure

7. The pressure when a force of 16 N applied over an area of 4 cm² is

1 m² = 10,000 cm²

4 cm² = 4/10000 = 0.0004 m²

Now

P = F/A

P = 16/0.0004

P = 40000 Pa

Hence

Pressure is 40,000 Pa

8. 5cm² =……………..m²

5 cm² = 5/10000 = 0.0005 m²

9. The loudness of sound depends on …………. Of the vibration

amplitude

10.The loudness of sound depends on …………. Of the vibration

Frequency

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Know More :-

Some formula

P = F/A

P = pressure

F = force

A = acceleration

T = 1/f

T = Time

f = frequency