State Secondary Certificate – ( SSC BOARD )
Class – 6
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Recommended Question & Answers for Class 6
1. 30 cricket players and 20 kho-kho players are training on a field. What is the ratio of cricket players to the total number of players?
Answer:
Number of cricket players = 30
Number of kho-kho players = 20
∴ Total number of player = Number of cricket players + Number of kho-kho players = 30 + 20 = 50
Ratio of cricket players to the total number of players = Number of cricket players : Total number of player
= 30 : 50
= 30503050
= 30÷1050÷1030÷1050÷10 (HCF of 30 and 50 = 10)
= 3535
= 3 : 5
Thus, the ratio of cricket players to the total number of players is 3535 or 3 : 5.
2. Fill in the blanks.
(b) Comets are made of …………. .
(c) The planet …………. appears as if it is rolling along its orbit.
(d) …………. is a stormy planet.
(e) The Pole Star is the best example of a …………. type of star.
Answer:
(a) The group of galaxies of which our Milky Way is a part is called ‘Local Group’.
(b) Comets are made of ice and dust particles.
(c) The planet Uranus appears as if it is rolling along its orbit.
(d) Jupiter is a stormy planet.
(e) The Pole Star is the best example of a variable type of star.
3. Why?
(b) An object thrown upwards comes down after reaching a point.
(c) Powder is sprinkled on a carrom board.
(d) The ramp at a railway station has a rough surface.
Answer:
(a) A machine is oiled from time to time to reduce friction between its body parts. By doing so, life span of a machine increases.
(b) An object thrown upwards comes down after reaching a point. This is because of the Earth’s gravitational pull.
(c) Powder is sprinkled on a carom board to reduce friction between the striker/carom coins and the carom board. The powder smoothens the surface of the board and thus the striker and coins can move on it easily.
(d) The ramp at a railway station has a rough surface so that the friction between our feet and the ground is enough for us to walk comfortably and without tripping.