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Question-1
A body in uniform motion has
(A)
constant speed
(B)
constant velocity
(C)
constant acceleration
(D)
changing speed
Question-2
Rate of change of velocity of a body with time is called
(A)
velocity
(B)
displacement
(C)
speed
(D)
acceleration
Question-3
1kgwt is equal to
(A)
1kg
(B)
1N
(C)
9.8kg
(D)
9.8N
Question-4
Unit of retardation is
(A)
ms
2
(B)
ms
-1
(C)
ms
-2
(D)
ms
Question-5
If an object with velocity 30m/s is accelerated at 8m/s
2
what will be its velocity after 5 seconds?.
(A)
70m/s
(B)
150m/s
(C)
40m/s
(D)
90m/s
Question-6
Displacement of a body in unit time is called
(A)
Retardation
(B)
Speed
(C)
Velocity
(D)
Acceleration
Question-7
Two bodies of equal masses are dropped from different heights above the surface of earth.On reaching the surface of earth on reaching the surface of earth which of them will have greater velocity?
(A)
Body dropped from greater height
(B)
Body dropped from less height
(C)
Both of them will have some velocity
(D)
Cannot be predicted.
Question-8
Unit of weight is
(A)
kg
(B)
N
(C)
gm
(D)
Nm
Question-9
If the weight of a body is 5kgwt.What will be its mass ?.
(A)
0.5kg
(B)
9.8kg
(C)
5kg
(D)
4.9kg
Question-10
Select a periodic motion from the following list.
(A)
Motion of Ball
(B)
Movement of vehicles
(C)
Grazing of cow
(D)
Rotation of earth
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Std 7
Kerala (English Medium)
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