Question

5
Example:
Materials: a
magnets
6.
Example:
B.
Find the appropriate word for the following-
1.
A device that measures the distance travelled by a vehicle is
Let's do:
1. Take on
2. Now,
2.
Motion repeated at the regular interval of time is
3.
The invention that brought a revolutionary change in the field of transport is
Observat
1. The
4.
5.
One complete 'to and fro' motion is called as
A unit of measurement accepted universally.
A very fast 'to and fro' motion is called
2. The
6.
C.
Solve the following. (
Mark 1 for blue, 2 for green, 3 for red and 4 for orange)
What is the length of the grids 1, 2, 3 and 4, if the length
Concl
1.
1. A
of each box of one grid is 0.7 cm?
2. A
2.
Convert these lengths into the smallest unit of length.
22​

Answer 1

Answer:

Magnet: An object which attracts magnetic materials; like iron, cobalt and nickel; is called magnet. Discovery of Magnet: Magnet was discovered by an ancient Greek shepherd; named Magnes. ... Artificial Magnet: Magnet which is made by humans is called artificial magnet.