Online Test physics 10

1.An astronomical unit of distance is





2.Supersonic speed in excess of Mach 1 , Hypersonic describes the speed in excess of





3.Chronometer is an instrument to measure





4.According to the general conference of weights and measures, the unit of length is





5.In the case of bodies falling under gravity which of the following remains constant at a given place?





6.The motion of the pendulum of a wall clock is an example of





7.The distance between two bodies is halved, Now the force of attraction between will be





8.If the speed of the rotation of the earth increases, the weight of a body





9.The period of oscillation of a simple pendulum depends up on





10.A piece of rock is taken from the moon to the earth. Then







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