Kerala SCERT Class 8 Science Chapter 8 Measurements and Units Question Answer Solution Here. Kerala Board Class 8 Students can find Here 8th Chapter Measurements and Units Notes provide by our Teacher. Important Question Answer from Chapter 8 Measurements and Units.
- Board- Kerala Board.
- Class – 8.
- Subject – Science Part 1
- Chapter – 8.
- Chapter Name – Measurements and Units.
- Topic – Question Answer Solution.
Question: (1) the basic unit of length is ________?
(a) Metre
(b) Centimetre
(c) Kilogram
(d) Kilometre
Ans: – Metre.
Question: (2) in vacuum, light travels 3 lakh kilometres in _______?
(a) One second
(b) half second
(c) Two seconds
(d) Three second
Ans: – One second.
Question: (3) the basic unit of mass is __________?
(a) Kilogram
(b) Milligram
(c) Gram
(d) Quintal
Ans: – Kilogram.
Question: (4) the basic unit of time is __________?
(a) Second
(b) Minute
(c) Hour
Ans: – Second.
SHORT QUESTION:
Question: (1) which precautions to be taken while measuring length?
Ans: – While measuring length of an object keep the scale close to the object without any inclination. The position of eye is very important while taking the measurement.
Question: (2) expressed what is unit derived?
Ans: – Unit which are ex pressed in terms of fundamental unit or those units which are dependent on fundamental unit are derived units.
Question: (3) what is density?
Ans: – Mass per unit volume of a substance is referred to as density.