Advertisements
Advertisements
Write true or false for a given statement.
A ticking clock sound is heard late when heard through a metal.
Concept: undefined >> undefined
Fill in the blank.
The number of times a body vibrates in one second is called its ______.
Concept: undefined >> undefined
Advertisements
Fill in the blank.
The pitch of a sound depends on its ________.
Concept: undefined >> undefined
Fill in the blank.
We can hear sounds of frequency in the range of _______
Concept: undefined >> undefined
Fill in the blank.
________ produces a sensation in ears.
Concept: undefined >> undefined
Fill in the blank
Like poles ______ each other and unlike poles _____
Concept: undefined >> undefined
| Column A | Column B |
| (a) Vibrations cause | (1) absorb sound |
| (b) A shriller sound is | (2) second |
| (c) Unit of frequency | (3) sound |
| (d) Unit of time period | (4) of high pitch |
| (e) Curtains | (5) hertz |
Concept: undefined >> undefined
Fill in the blank
To light a table lamp and to run a refrigerator, we use ______ as the source of electricity.
Concept: undefined >> undefined
Select the correct alternative :
We can distinguish a shrill sound from a flat sound by its
Concept: undefined >> undefined
Select the correct alternative :
We can hear sound of frequency
Concept: undefined >> undefined
Select the correct alternative :
Wavelength is measured in
Concept: undefined >> undefined
Match the following
| Column A | Column B |
| (a). Human body | (1). electric bell |
| (b). Silk thread | (2). current |
| (c). Charge in motion | (3). conductor |
| (d). soft iron | (4). electromagnet |
| (e) . Electromagnet | (5). insulator |
Concept: undefined >> undefined
Select the correct alternative
A freely suspended magnet rests in
Concept: undefined >> undefined
What do you mean by a vibratory motion?
Concept: undefined >> undefined
Name the three modes of transfer of heat.
Concept: undefined >> undefined
The bees do not have voice-boxes. How do they produce sound ?
Concept: undefined >> undefined
