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Question-1
Change in velocity with time is called:
(A)
Acceleration
(B)
Speed
(C)
Force
(D)
Momentum
Question-2
Which of the following slows down moving objects?
(A)
Air resistance
(B)
Friction
(C)
Water resistance
(D)
All the above
Question-3
Velocity is a:
(A)
Scalar quantity
(B)
Fundamental quantity
(C)
Vector quantity
(D)
cannot be predicted
Question-4
The S.I unit of speed is:
(A)
m/s
2
(B)
m/s
(C)
cm/s
(D)
ms
Question-5
The unit for the rate of change of velocity will be:
(A)
m/s
(B)
m/s
2
(C)
m-s
(D)
N/s
Question-6
Which of the following is a vector quantity?
(A)
Acceleration
(B)
Velocity
(C)
Both (a) and (b)
(D)
Speed
Question-7
The speed of vehicles may be measured in:
(A)
m/s
(B)
km/s
(C)
km/hr
(D)
km.hr
Question-8
Speed of light in air is:
(A)
3 x 10
8
km/hr
(B)
3 x 10
8
m/s
(C)
3 x 10
8
km/s
(D)
3 x 10
8
m/hr
Question-9
If the velocity of a body does not change, its acceleration is:
(A)
Zero
(B)
Infinite
(C)
Unity
(D)
Negative
Question-10
Which of the following is used to determine speed in a vehicle?
(A)
Odometer
(B)
Speedometer
(C)
Stop watch
(D)
Speed trap gun
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Cambridge Secondary Grade 8
IGCSE
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