Sound-Sound [CBSE (Central Board of Secondary Education) Class-8 Science]: Questions 1 - 4 of 4
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Question 1
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 2
Question MCQ▾
Some crude musical instruments make soothing musical sound when struck with the help of a stick such as:
Choices
Choice (4) | Response | |
---|---|---|
a. | Ghattam | |
b. | Munjira | |
c. | Kartal | |
d. | All a., b. and c. are correct |
Question 3
Question MCQ▾
Sound is produced when:
Choices
Choice (4) | Response | |
---|---|---|
a. | To and fro motion of an object | |
b. | Any object that vibrates mechanically produces sound | |
c. | Intensity of sound | |
d. | The number of vibrations per second as perceived by a listener |
Question 4
Question MCQ▾
Audible range of frequency is:
Choices
Choice (4) | Response | |
---|---|---|
a. | Above 20,000Hz | |
b. | Below 20 Hz | |
c. | Above 20 KHz | |
d. | 20 Hz to 20,000Hz |