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NCERT Solutions are available in both Hindi and English medium for class 6th, 7th, 8th, 9th, 10th, 11th and 12th, on CBSE STUDY MATERIALS. You will find here these materials in very easy way and simple language to understand very easily. Every students who makes self study it is a good platform to obtain ncert solutions and cbse notes.
Tuesday 4 November 2014
Class VI
Q – What is periodic motion?
A – An object or a part of it repeats its
motion after a fixed interval of time. This type of motion is called periodic
motion.
Q – Give three examples of periodic motion.
A – (i)
Motion of a pendulum, (ii) a branch of a tree moving to and fro,
(iii) motion of a child on a swing,
Q – What is motion?
A – The changing in position of an object
along with time is called motion.
Q – What is rectilinear motion?
A – The objects move along a straight line.
This type of motion is called rectilinear motion.
Q – What is circular motion?
A – When an object moves along the circular
path like a stone, the distance of the stone from your hand remains the same.
Such type of motion is called circular motion. Ex. –
Q – Give two example of circular motion.
A –
(i) The motion of a point marked
on the blade of an electric fan (ii) the
hands of a clock are examples of circular motion.
Q – Define unit.
A – Measurement means the comparison of an
unknown quantity with some known quantity. This known fixed quantity is called
a unit.
Q – What is S. I unit ?
A – The system of units now used is known
as the International System of Units (SI units).
Q – Write the SI unit of length.
A – The SI unit of length is a metre.
Q – Write the full form of S. I Unit.
A - International System of Units (SI
units)
introduction
Q – What is periodic motion?
A – An object or a part of it repeats its
motion after a fixed interval of time. This type of motion is called periodic
motion.
Q – Give three examples of periodic motion.
A – (i)
Motion of a pendulum, (ii) a branch of a tree moving to and fro,
(iii) motion of a child on a swing,
Q – What is motion?
A – The changing in position of an object
along with time is called motion.
Q – What is rectilinear motion?
A – The objects move along a straight line.
This type of motion is called rectilinear motion.
Q – What is circular motion?
A – When an object moves along the circular
path like a stone, the distance of the stone from your hand remains the same.
Such type of motion is called circular motion. Ex. –
Q – Give two example of circular motion.
A –
(i) The motion of a point marked
on the blade of an electric fan (ii) the
hands of a clock are examples of circular motion.
Q – Define unit.
A – Measurement means the comparison of an
unknown quantity with some known quantity. This known fixed quantity is called
a unit.
Q – What is S. I unit ?
A – The system of units now used is known
as the International System of Units (SI units).
Q – Write the SI unit of length.
A – The SI unit of length is a metre.
Q – Write the full form of S. I Unit.
A - International System of Units (SI
units)
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