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5
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What are forces originate due to motion?
Inertia, Friction
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5
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The relation between the friction force and the speed of the object is......................
inverse
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5
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Mention types of periodic motion?
Wave, Circular , Vibrating motion.
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What isย the idea of electromagnet?
Electric energy - Magnetic energy
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What is the type of motion?
Transitional
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thief
Give points!
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25
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rocket
Go to first place!
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fairy
Take points!
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25
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banana
Go to last place!
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5
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What are fundamental forces in Nature?
Earth's gravitational force, Electromagnetic force, Nuclear force
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5
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GR: We can see lightning before hearing thunder.
Electromagnetic waves, mechanical waves.
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5
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GR: Blood is pumped all over the body organs?
Due to Heart muscles contraction and relaxation.
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5
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Infrared rays are used in.......................
Night vision, cooking food, remote sensing instruments.
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5
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GR: Lubricating and oiling of mechanical machines?
to reduce the friction between moving parts to prevents their erosion
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What are uses of electromagnet?
Electric winches, Electric bells
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baam
Lose 20 points!
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fairy
Take points!
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25
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rocket
Go to first place!
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thief
Give points!
5
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25
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lifesaver
Give 10 points!
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seesaw
Swap points!
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gift
Win 25 points!
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lifesaver
Give 15 points!
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5
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Visible light used in ....................
TV cameras, photographic cameras, Light show
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seesaw
Swap points!
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star
Double points!
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fairy
Take points!
5
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25
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thief
Give points!
5
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25
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