STUDY QUESTIONS
1. (a) What do you understand by the term volume
of a substance?
(b) State the unit of volume in S.I. system and
define it
(c) Name the sub-multiple of volume and state its
value in terms of SI system
2. (a) Why is the volume of a matchbox not measured
in SI system?
(b) Name and define the unit in which the volume
of matchbox is generally measured,
(c) Describe in detail how you will measure the
volume of a matchbox, if you are provided
with a 15 cm scale?
You can measure the diameter of a sphere or a
cylinder by using two wooden blocks and a 15 cm
scale. Explain how can you measure the volume
of (a) a wooden cylinder, (b) a tennis ball.
4. By using a measuring cylinder, a fine cotton thread
and water, explain how will you find volume of
an irregular piece of stone.
5. By using an overflow jar, a measuring jar and
water, explain how will you find volume of a glass
stopper
6. Name at least two units in which the volume of
liquids is measured
7. (a) How many millilitres are contained in
(i) 1 m3 (ii) 1 litre ?
(b) How many litres of a liquid make 1 m3 of it?
8. Amongst the unit of volume (a) cm3 (b) m3,
(C) litre and (d) millilitre, which is most suitable
for measuring volume of (i) a swimming tank,
(ii) a glass half filled with milk (iii) a thick dictionary
(iv) volume of air in a big ball?
19
3
Wooden block
Wooden block
Diameter
Answers
Explanation:
1.(a) Volume is the quantity of three-dimensional space enclosed by a closed surface, for example, the shape that a substance ( solid, liquid, gas or plasma) or shape occupied or contains and its SI unit is cubic metre.
(b). The SI unit of volume is the cubic metre (m3) which is the volume occupied by a cube that measures 1m on each side.
(c). The sub multiples of volume are milliletre, centiletre,and deciletre.Their value in terms of SI system ( letre) are : 1 mililitre = 0.001 letre , 1 centimetre= 0.01 letre, 1 deciletre= 0.01 letre.
Submultiples are units which are smaller in magnitude than SI unit.
2. (a) The unit for length in SI system is m, where matchbox having a length much less than m only in some cm claims its dimention to be better represented in cm.it is reason behind the given statement.
(b) m^3
Volume of matchbox ( cuboid ) is given by l×b×h. where l is the length b is the breadth and h is height. Since all the dimentions are measured in metre (m) so units of volume is metre cube or m^3.
Answer:
thank you for the likes taniya9491