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.
Answers
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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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