Physics MCQs for Class 9 with Answers
The vector which has the same effect as the combined effect of vectors:
Negative vector
The vector
Resultant vector
Zero vector
Two equal but unlike parallel forces having different line of action produce:
A torque
A couple
Equilibrium
Neutral equilibrium
Sin 45 is equal to:
Zero
0.5
0.707
1
Sin 45ois
0.707
0.5
1
0.2
Number of factors on which torque depends :
2
3
4
5
The net torque acting on a rotating body with uniform speed is:
0
1
2
5
To find x component of force ‘F’ we use formul:
F Sin ?
F Cos ?
F tan ?
F/F1
………….. is example of vector.
Length
Force
Mass
Time
If we increase the length of spanner the torque produced will be
Increased
Decreased
Constant
Zero
A body is in equilibrium when its
Acceleration is uniform
Speed is uniform
Speed and acceleration are uniform
Acceleration is zero
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