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Grade 8

Physics

CONCISE Physics - Middle School - 8 chapter-arrow

Physical Quantities and Measurement exercise-arrow

Numericals

Questions in Numericals

BOOKS

1. CONCISE Physics - Middle School - 8

CHAPTERS

1. Matter

2. Physical Quantities and Measurement

3. Force and Pressure

EXERCISES

1. Objective Questions

2. Short/Long Answer Questions

3. Numericals

Q1) The density of air is 1.28 g/litre. Express it in

(a) $g\ cm^{-3}$ (b) kg m

Q2) The dimensions of a hail are $10m\times7m\times5m$ . If the density of air is 1.11 $kg\ m^{-3}$ , find the mass of air in the hail.

Q3) The density of aluminium is 2.7g cm3. Express it in $kg\ m^{-3}$

Q4) The density of alcohol is 600 $kg\ m^{-3}$ . Express it in $g\ cm^{-3}$

Q5) A piece of zinc of mass 438.6 g has a volume of 86 cm³. Calculate the density of zinc.

Q6) A piece of wood of mass 150 g has a volume of 200 cm³. Find the density of wood in (a) C.GS unit, (b) S.I. unit

Q7) Calculate the volume of wood of mass 6000 kg if the density of wood is 0.8 $g\ cm^{-3}$

Q8) Calculate the density of solid from the following data:

(a) Mass of solid (M) = 72g

(b) Initial volume of water in measuring cylinder = 24 ml

(c) Final volume of water when solid is completely immersed in water 42 ml

Q9) The mass of an empty density bottle is 21.8 g, when filled completely with water is 41.8 g and when filled completely with liquid is 40.6 g. Find:

(a) The volume of density bottle

(b) the relative density of liquid

Q10) From the following observations, calculate density and relative density of a brine solution. Mass of empty density bottle = 22 g

Mass of bottle + water = 50 g

Mass of bottle + brine solution = 54 g

Q11) The mass of an empty density bottle is 30 g, it is 75 g when filled completely with water and 65 g when filled completely with a liquid. Find:

(a) volume of density bottle

(b) density of liquid: and

(c) relative density of liquid.

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Questions in Numericals

Q1) The density of air is 1.28 g/litre. Express it in

(a) $g\ cm^{-3}$ (b) kg m

Q2) The dimensions of a hail are $10m\times7m\times5m$ . If the density of air is 1.11 $kg\ m^{-3}$ , find the mass of air in the hail.

Q3) The density of aluminium is 2.7g cm3. Express it in $kg\ m^{-3}$

Q4) The density of alcohol is 600 $kg\ m^{-3}$ . Express it in $g\ cm^{-3}$

Q5) A piece of zinc of mass 438.6 g has a volume of 86 cm³. Calculate the density of zinc.

Q6) A piece of wood of mass 150 g has a volume of 200 cm³. Find the density of wood in (a) C.GS unit, (b) S.I. unit

Q7) Calculate the volume of wood of mass 6000 kg if the density of wood is 0.8 $g\ cm^{-3}$

Q8) Calculate the density of solid from the following data:

(a) Mass of solid (M) = 72g

(b) Initial volume of water in measuring cylinder = 24 ml

(c) Final volume of water when solid is completely immersed in water 42 ml

Q9) The mass of an empty density bottle is 21.8 g, when filled completely with water is 41.8 g and when filled completely with liquid is 40.6 g. Find:

(a) The volume of density bottle

(b) the relative density of liquid

Q10) From the following observations, calculate density and relative density of a brine solution. Mass of empty density bottle = 22 g

Mass of bottle + water = 50 g

Mass of bottle + brine solution = 54 g

Q11) The mass of an empty density bottle is 30 g, it is 75 g when filled completely with water and 65 g when filled completely with a liquid. Find:

(a) volume of density bottle

(b) density of liquid: and

(c) relative density of liquid.

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Learn from an expert tutor.

Book a free class now

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