Physics Practice Test – Units, Measurement and Dimensional Analysis

Hello and Welcome to UTME/SSCE Physics Practice Test - Units, Measurement and Dimensional Analysis

  1. You are to attempt 10 random objectives questions ONLY.
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Which of the following is not a vector quantity?

A. Momentum     B. Force     C. Velocity     D. Temperature

Which of the following physical quantities is correctly paired with its corresponding S.I. unit? 

A. Density [kg m3]  
B. Power [J s-1]  
C. Specific latent heat [J kg-1 K-1]  
D. Pressure [N m-1]



The diagram above illustrates a micrometer screw gauge. Determine its reading. 

A. 10.90 mm      B. 15.46 mm      C. 14.98 mm      D. 17.50 mm



The diagram above represents a section of a pair of vernier calipers. The reading on the instrument is _____ 

A. 2.21 cm      B. 0.05 cm     C. 2.26 mm      D. 2.26 cm

Which of the following statements about the mass and the weight of a body is not correct? It’s ______

A. mass is a scalar quantity
B. weight is a function of the gravitational pull on it
C. mass on earth and on the moon is the same
D. weight at the equator and at the poles is the same

The instrument used for measuring atmospheric pressure is ______

A. hygrometer     B. ratemeter     C. barometer     D. photometer

Which of the following is a derived unit?

A. Ampere     B. Kilogramme     C. Second     D. Ohm

Which of the following dimensions represents impulse? 

A. MLT-2      B. MLT-1      C. MLT      D. ML
Which of the following statements about a spring balance and/or a chemical balance is not correct?

A. The chemical balance: operates on the principle of moments
B. The spring balance operates on Hooke’s law
C. Either may be used to measure the weight of a substance
D. The reading of a spring balance changes over the surface of the earth, while that of the chemical balance remains constant.



The diagram above illustrates a micrometer screw gauge. Determine its reading. 

A. 1.44 mm      B. 2.46 mm      C. 3.63 mm      D. 2.83 mm

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