Mass
m/s2
Exercise 06
1. Study the entries in the following
table and rewrite them putting the
2. Answer the following questions.
connected items in a single row.
a. What is the difference between mass and
weight of an object. Will the mass and
I
II
III
weight of an object on the earth be same
Zero at the
as their values on Mars? Why?
centre
b What are (i) free fall, (ii) acceleration
Weight
Measure of inertia
due to gravity (iii) escape velocity (1)
Accelera-Nm-/kg Same in the entire
centripetal force ?
tion due to
universe
c. Write the three laws given by Kepler
Gravita-N Depends on height
How did they help Newton to arrive at the
inverse square law of gravity?
tional con-
stant
kg
gravity
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