Physical Quantities & Units

Q: Kg-m2 sec-2 is SI unit of:

(a) :  Work
(b) :  Force
(c) :  Pressure
(d) :  Momentum
(e) :  None of the Above
Answer:  Work

Q: In order to check the correctness of an equation, we are to show that ________ of the quantities on _________side/sides of the equation are ______________.

(a) :   Dimension,left, same
(b) :   Dimension , both, same
(c) :   Error,one,different
(d) :   Error, both , different
(e) :  None of the Above
Answer:   Dimension , both, same

Q: Which quantity has different dimensions :

(a) :   Work
(b) :   Pressure
(c) :   Energy
(d) :   Torque
(e) :  None of the Above
Answer:   Pressure

Q: Typical examples of base quantities are:

(a) :  Length
(b) :  Mass
(c) :  Time
(d) :  Only A and C
(e) :  All of these
Answer:  All of these

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