Physics MCQs for Class 9 with Answers
If the velocity of body decreases with time then acceleration will be
Negative
Positive
Uniform
Variable
If no external force acting on a body then such system is called:
Ideal system
Controlled system
Isolated system
None of these
The slope of distance time graph shows .
Speed
Displacement
Acceleration
Distance
The unit of coefficient of friction:
Newton
ms-1
ms-2
No unit
A straight line parallel to time-axis on a distance-time graph tells that the object is:
Moving with constant speed
At rest
Moving with variable speed
In motion
Freely falling bodies move under the action of
Force
Gravity
Velocity
Mass
If the velocity of body increases with time, the acceleration will be:
Negative
Positive
Uniform
Variable
The faster birds falcon has speed.
100 kmh-1
200 kmh-1
300 kmh-1
400 kmh-1
If an object is moving with constant speed then its distance time graph will be a straight line:
Along time axis
Along distance axis
Parallel to time axis
Inclined to time axis
If an object is moving with a uniform changing speed then speed time graph is
Straight line
Variable
Parallel to time axis
All of these
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