Sound [CBSE (Central Board of Secondary Education) Class-8 Science]: Questions 1 - 7 of 24
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Question 1
Question MCQ▾
Unit of loudness is:
Choices
Choice (4) | Response | |
---|---|---|
a. | dB | |
b. | Hz | |
c. | Question does not provide sufficient data or is vague | |
d. | None of the above |
Question 2
Question MCQ▾
Larynx is called as:
Choices
Choice (4) | Response | |
---|---|---|
a. | Body՚s voice box | |
b. | Sound producing organ in human | |
c. | Both a. and b. are correct | |
d. | Question does not provide sufficient data or is vague |
Question 3
Question MCQ▾
Why one cannot listen the sounds on moon?
Choices
Choice (4) | Response | |
---|---|---|
a. | There are ultrasonic waves | |
b. | There are infrasonic waves | |
c. | There is no medium on moon | |
d. | Maximum vibration of an object |
Question 4
Question MCQ▾
Number of oscillations per second is called as:
Choices
Choice (4) | Response | |
---|---|---|
a. | Loudness | |
b. | Frequency | |
c. | Oscillation | |
d. | Time period |
Question 5
Question MCQ▾
Sound is defined as:
Choices
Choice (4) | Response | |
---|---|---|
a. | Form of energy | |
b. | Sound can be created or transmitted only in medium | |
c. | Both a. and b. are correct | |
d. | Question does not provide sufficient data or is vague |
Question 6
Question MCQ▾
Ear is divided into how many parts?
Choices
Choice (4) | Response | |
---|---|---|
a. | Three | |
b. | Five | |
c. | Two | |
d. | Four |
Question 7
Question MCQ▾
Sound of low frequency is called as:
Choices
Choice (4) | Response | |
---|---|---|
a. | Bass | |
b. | Amplitude | |
c. | Vibration | |
d. | Shrill |