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Class IX >> Science >> Gravitation >> A1

Q1	Which of the following instrument does NOT work on the Archimedes' principle?
A	A Lactometer
B	A Thermometer
C	A Hydrometer
D	A Submarine

Q2	The weight of the body will be more than the upthrust if the density of the body is __________ than that of liquid.
A	More
B	Less
C	Equal
D	None of The Above

Q3	Name the scientist who found the universal law of gravitation.
A	Newton
B	Galileo
C	Kepler
D	Edison

Q4	Newton's law of gravitation is applicable to ___________.
A	Small Objects Only
B	Planets Only
C	Solar System
D	All Bodies of Universe Irrespective of Their Size

Q5	What holds the atmosphere close to the Earth?
A	Sea And Oceans
B	Moon's Gravity
C	Wind And Clouds
D	Earth's Gravity

Q6	The property of buoyancy exists in __________.
A	Any States of Matter
B	Liquid
C	Gas
D	Both (B) and (C)

Q7	Name the scientist who gave the value of 'G'.
A	Henry Cavendish
B	Johannes Kepler
C	Galileo Galilei
D	Isaac Newton

Q8	The upthrust exerted by liquid on the immersing body is known as __________.
A	Viscosity
B	Buoyant Force
C	Surface Tension
D	Density

Q9	SI unit of 'G' is __________.
A	Nm2/Kg2
B	N2m2/Kg2
C	Nm/Kg2
D	Nm2/Kg

Q10	An egg sinks in pure water but it floats in saturated salty water because __________.
A	Egg has Higher Density
B	Density of Pure Water is Higher
C	Density of the Salty Water is Higher
D	None of the Above

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