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Class IX >> Science >> Sound >> A1

Q1	What happens when an object vibrates?
A	The Particles of Medium Travel
B	Adjacent Particle to the Vibrating Object is Not Displaced from its Equilibrium Position
C	The Disturbance is Passed from One Particle to the Adjacent Particles
D	All of the Above

Q2	Sound moves through a medium, which may be __________.
A	Solid only
B	Liquid Only
C	Gas Only
D	Solid, Liquid or Gas

Q3	A wave is a __________ that moves through a medium.
A	Disturbance
B	Acceleration
C	Force
D	Power

Q4	Sound can be produced by __________ different objects.
A	Plucking
B	Scratching or Rubbing
C	Blowing or Shaking
D	All of the Above

Q5	Vibration is a kind of _________ of an object.
A	Linear Motion
B	Rotational Motion
C	Reciprocating Motion
D	Circular Motion

Q6	The sound of a human voice is produced due to vibrations in the __________.
A	Vocal Folds
B	Vocal Cords
C	Voice Reeds
D	All of the Above

Q7	Which one of the following is NOT a form of energy ?
A	Mechanical Energy
B	Sound
C	Light
D	Temperature

Q8	Sound is a form of __________ that produces a sensation of hearing in our ears.
A	Energy
B	Force
C	Matter
D	Physical Quantity

Q9	The matter or substance through which sound is transmitted is called __________.
A	Medium
B	Wave
C	Energy
D	Amplitude

Q10	According to the laws of conservation of energy, __________.
A	It can Either be Created or Destroyed
B	It can Neither be Created nor Destroyed
C	It cannot be Changed from One Form to Other
D	It can be Created in the Physics' Laboratory

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