Selina solutions

Selina solutions

Selina solutions

Grade 7

CHAPTERS

Q1) Write true or false for each statement

(a) The SI. unit of volume is litre.

(b) a measuring beaker of capacity 200 ml can measure only 200 ml volume of a liquid.

(c) cm^2 is a smaller unit of area than m^2.

(d) equal volumes of two different substances have equal masses.

(e) the SI unit of density is g\ cm^{-3}.

(f) 1 g\ cm^{-3} = 1000 kg\ m^{-3}.

(h) the speed 5 m\ s^{-1} is less than 25 km\ h^{-1}.

(i) the SI unit of speed is m\ s^{-1}.

Solution:

(a) False

(b) True

(c) True

(d) False

(e) False

(f) True

(g) True

(h) True

(i) True

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Book a free class nowQ1) Write true or false for each statement

(a) The SI. unit of volume is litre.

(b) a measuring beaker of capacity 200 ml can measure only 200 ml volume of a liquid.

(c) cm^2 is a smaller unit of area than m^2.

(d) equal volumes of two different substances have equal masses.

(e) the SI unit of density is g\ cm^{-3}.

(f) 1 g\ cm^{-3} = 1000 kg\ m^{-3}.

(h) the speed 5 m\ s^{-1} is less than 25 km\ h^{-1}.

(i) the SI unit of speed is m\ s^{-1}.

Solution:

(a) False

(b) True

(c) True

(d) False

(e) False

(f) True

(g) True

(h) True

(i) True

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