Work Sheet-1
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0.1 Fill in the blanks:
1). Five kilometer is.....
i). Motion of earth around son is........
iii). Motion of a child on a swing is......
iv).
). Pencil is..............object.
v). Light travels in..............line.
vi). Mirror reflection gives us......
vii). Paper is not a ...........material
viii). A magnet always has...............poles
ix)
is a natural magnet.
...... .each other.
x).
Opposite poles of two magnets each other
Answers
1) 5000 Metres
2) Axis
Solution of 2nd:-
Earth spins around its axis, just as a top spins around its spindle. This spinning movement is called Earth's rotation. At the same time that the Earth spins on its axis, it also orbits, or revolves around the Sun. This movement is called revolution.
3) periodic motion
Solution:-
Motion of a child on a swing is periodic. Explanation: Motion which repeats itself after certain intervals is called periodic motion. Since the motion of a swing also repeats after regular intervals so, the motion of the child on a swing is periodic.
4) Book
Solution:-
If we cannot see through an object at all, it is an opaque object. A book, a pencil, a rubber ball, etc. are examples of opaque objects. Translucent objects are objects which allow light to pass partially (not completely) through them.
5) straight
Solution:-
Once light has been produced, it will keep travelling in a straight line until it hits something else. ... An object blocks light so that it can't reach the surface where we see the shadow.
6) Don't know☹️
7) Magnetic
8) 2 POLES. South and North
9) Different
10) Not able to understand yet.