PhysicsMeasurements Quiz July 19, 2022July 21, 2022 - by hafsaaftab5096 0 Created on July 19, 2022 By hafsaaftab5096 Measurements Quiz 1 / 22 Which one is not a branch of physical sciences? Chemistry Geology Biology 2 / 22 Which branch of science plays an important role in the development of technology and engineering? Physics Chemistry Biology 3 / 22 The number of categories in which physical quantities are divided is 1 2 3 4 / 22 How many types of units are in SI? 1 2 3 5 / 22 1024 can be written in scientific notation as 1.024×103 0.000976 1/0.00097 6 / 22 Prefix deca represents 10 Raised to power 1 10 Raised to power 3 10 Raised to power -1 7 / 22 In scientific notation, numbers are expressed in Power of ten Powers of two Reciprocal 8 / 22 The error in measurement may occur due to The inexperience of a person The faulty apprentice both 9 / 22 The uncertainty in a measurement may occur due to Limitation of an instrument Natural variation of the object to be measured both 10 / 22 Random errors can be reduced by Taking zero correction Comparing the instrument with another more accurate one Taking mean of several measurements 11 / 22 In any measurement the significant figures are All accurately known digits and the first doubtful digit Only accurately known digits Only doubtful digits 12 / 22 A digit zero in a measurement May be significant may not significant Always significant Always insignificant sign 13 / 22 Number of significant figures in 0.0173 is 4 3 5 14 / 22 Smaller the least count of the instrument more is the measurement Accurate Precise Accurate and precise 15 / 22 The dimension of force is MLT-1 MLT-2 ML-1T-2 16 / 22 ML-1 T-2 is the dimension of Force Pressure Momentum 17 / 22 Dimensional analysis is helpful for Deriving a possible formula Checking the homogeneity of a physical equation Only A and B are correct 18 / 22 Which equation is not dimensionally correct? S=Vt2 S=1/2at2 Vf=Vi+at 19 / 22 SI unit of the coefficient of viscosity is Kg.m.S-1 Kg m-1.S-1 Kg.m.S-1 20 / 22 Three students measured the length of a needle with meter rod and recorded as : (i) 0.2145m (ii) 0.21m (iii) 0.214m Which one is a correct record? Only (iii) Only (ii) Only (iii) 21 / 22 The rectangular coordinate system is also called Cartesian coordinate system Polar coordinate system Cylindrical coordinate system 22 / 22 The direction of a vector in space is specified by One angle Two angle Three angle Your score is The average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz Measurements Quiz Check out for more quizzes for mdcat 2022 preperation. Start studying now!