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physics
physics
14 cards
Cards (23)
Mass
The amount of
matter
in
an
object
Weight
The
gravitational force
on an object
Weight is a
gravitational
force
Mass
and
weight
are distinct concepts
Comparing weights (and hence masses) using a
balance
1. Place objects on
balance
2. Compare
weights
Mass
Property that
'resists'
change in
motion
Gravitational field strength
The force experienced by a mass due to
gravitational attraction
Gravitational field strength
(
g
) has two meanings:
Calculating acceleration of rocket
Given: Mass =
500
kg, Upward force =
6000
N, Weight = 4900 N
Resultant force = Upward force - Weight = 6000 - 4900 =
1100
N
Acceleration = Resultant force / Mass = 1100 / 500 =
2.2
m
/
s^2
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