Physics worksheet
Class: IX Subjects: Physics
Name:
Q. Circle the correct option i.e A / B / C / D
(i) Pressure is __________ quantity.
A. Scalar B. Vector
C. Constant D. None
(ii) At a height of about 30km ,the atmospheric pressure becomes only 7mm of mercury which is approximately_______ Pa.
A. 4000 B. 3000
C 2000 D. 1000
(iii) The mass of 200cm3 of stone is 500g. Its density is ___:
A. 1 x 105 gcm3 B. 2.5 gcm3
C 0.49 gcm3 D. 10 gcm3
(iv) One meter cube is equal to ____________ litres.
A. 10 l B. 100l
C 1000l D. 10000l
(v) Neon signs contain ____________ state of matter.
A. Solid B. Liquid
C Gas D. Plasma
(vi) The volume of sphere of mass 5kg and density 8200 kgm-3 is:
A. 6.1x10-3m3 B. 1640 m3
C 6.1x10-4m3 D. 6.1x10-5m3
(vii) Which of the substances is the lightest one?
A. Copper B. Mercury
C Aluminium D. Lead
(viii) What should be the approximate length of a glass tube to construct a water barometer?
A 0.5 m B. 1 m
C 2.5 m D. 11m
(ix) Pressure on an object in water at a depth of 10 m is__________ whereas density of water is 1000kgm3 .
A. 100 Pa B. 10 Pa
C 1000 Pa D. 105Pa
(x) Unit of Atmospheric pressure is:
A. N/m B. Pascal
C. kgms-2 D. Nm (xi) The length of vernier scale is:
A. 1mm B. 9mm
C. 9mm D. 11mm
(xii) Femto is equal to:
A. 10-12 B. 1012
C. 1015 D. 10-15
(xiii) How many seconds we have in a day?
A. 60 s B. 1440 s
C. 86400 s D. 36000 s
(xiv) The size of an animal cell is:
A. 5 µm B. 10 µm
C. 1µm D. 10 µm
(xv) Least count of digital vernier calipers is;
A. 1mm B. 10mm
C. 0.01mm D. 0.001mm
(xvi) 0.002 giga is written in prefixes:
A. 0.2mg B. 200µg
C. 0.002mg D. Both A and B
(xvii) The number of base units in System international units is:
A. 7 B. 4
C. 3 D. 5
(xviii) A student claimed the diameter of a wire as 1.032 cm using vernier calipers. Up to what
extent do you agree with it?
A. 1 cm B. 1.0 cm
C. 1.03 cm D. 1.032 cm
(xix) The study of internal structure of earth is called:
A. Atomic physics B. Plasma physics
C. Mechanics D. Geo physics
(xx) Least count of mechanical stopwatch is:
A. 0.01 s B. 0.1 s
C 1 s D. 10 s
(xxi) 19735 is written in scientific notation as:
A. 1.9735x 104m B. 19.735 x 104m
C. 1.9735 x 104m D. All
(xxii) According to SI units, intensity of light is measured in:
A. Meters B. Moles
C. Candela D. Second
(xxiii) An interval of 200 s is equivalent to:
A. 0.2 s B. 0.002 s
C 2x 10 -4 s D. 2x 10 -6 s
(xxiv) A measuring cylinder is used to measure _______ of liquid.
A. Mass B. Volume
C. Area D. Time
(xxv) Significant figures in0.0010 are:
A. Two B. One
C. Three D. Four