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PART-2
PHYSICS

Q). Safety device used in electric circuit is ….
A) Electric bulb
B) Battery
C) Switch
D) Fuse

Q). Which one of these is not a Contact force ?
A) Muscular force
B) Friction
C) Normal force
D) Magnetic force

Q). Let the forces F₁ and F₂, act on the table in opposite directions and F₁ > F₂, then
F_net = ……..
A) F₁-F₂
B) F₁+F₂
C) 0
D) 2F₂-F₁

Q). Pressure =…..
A) Force
B) Force x Area
C) Area / Force
D) Force / Area

Q). Sound can’t travel in…….
A) Solid
B) Liquid
C) Gas
D) Vacuum

Q). Which of the following is known as liquid gold?
A) Kerosene
B) Diesel
C) Petroleum
D) Paraffin wax

Q). The percentage of water vapour in air is….
A) Temperature
B) Humidity
C) Climate
D) Weather

Q). The correct relation between speed, distance and time is …..
A) Speed = time × distance
B) Speed = time / distance
C) Speed = distance / time
D) Speed = Speed / time

Q). Frictional force is proportional to the …..
A) Area of contact
B) Normal force
C) Smoothness of surface
D) None

Q). Uneven surface show ….. reflection.
A) regular
B) irregular
C) straight
D) curved

Q). Spring balance is used for measuring
A)Mass
B)Speed
C)Weight
D)Pressure

Q). How the images are formed in a plane mirror?
A)Inversion
B)Verticle
C) Lateral Inversion
D)None