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Class VIII >> Science >> Friction >> A1

Q1	What is interlocking of irregularities on two surface in contact called as?
A	Viscosity
B	Friction
C	Heat
D	Pressure

Q2	What happens if we sprinkle powder on carrom board?
A	Maintain Friction
B	Reduce Friction
C	Increase Friction
D	None of the Above

Q3	Which of the following statement is NOT true?
A	Friction Slows Down the Things
B	Friction is Not Useful
C	Friction Produces Heat
D	Friction can Stop the Moving Object

Q4	Friction always __________.
A	Opposes the Motion
B	Helps the Motion
C	Either Opposes or Helps the Motion
D	Neither Opposes or Helps the Motion

Q5	On which of the following surface, a toy car will travel more distance?
A	Carpet
B	Newspaper
C	Cloth
D	Wet Marble Floor

Q6	Friction is a __________.
A	Type of Contact Force
B	Type of Non-Contact Force
C	Type of Pressure
D	Form of Heat

Q7	Which of the following is a characteristic of friction?
A	It Works Only on Objects at Rest
B	It is a Non-Contact Force
C	It Works Opposite to Direction of Motion
D	Friction Produce Pressure

Q8	Friction can __________.
A	Stop a Moving Object
B	Change the Direction of a Moving Object
C	Change the Shape of an Object
D	Make a Moving Object Move Faster

Q9	Friction opposes the __________ between the surfaces in contact.
A	Relative Motion
B	Pressure
C	Force
D	None of the Above

Q10	Friction occurs because most of the surfaces are __________.
A	Plain
B	Smooth
C	Rough
D	Soft

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