Gravity

Does gravity act as a force on objects? Take the quiz and know more

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Views #: 1503
Questions #: 9
Time: 5 minutes
Pass Score: 80.0%
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Applying forces to 1-kg grapefruit and 3-kg pumpkin

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Consider a 1-kg grapefruit and a 3-kg pumpkin.  Now suppose that we apply forces to each object.  We exert three times as much force on the pumpkin as on the grapefruit, perhaps 4 newtons on the grapefruit and 12 newtons on the pumpkin.  Now apply newton's second law in each case to calculate the acceleration of each object

  • Grapefruit: a = (1)
  • Pumpkin: a = (2)
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4 m/s2
8 m/s2
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In nature there is a force that depends directly on the mass of the object on which the force is exerted

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The force of gravity on an object is not directly proportional to the mass of the object

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Will falling objects with different weights have the same acceleration?

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The acceleration of gravity is given a special symbol, g

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The acceleration of gravity is

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The direction of g, the acceleration of gravity, is downward

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Objects on the moon weigh less than they do on the earth

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An object's mass on the earth is different when it is on the moon

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0
sin cos tan
sin-1 cos-1 tan-1 π e
xy x3 x2 ex 10x
y√x 3√x √x ln log
( ) 1/x % n!
7 8 9 + MS
4 5 6 – M+
1 2 3 × M-
0 . EXP ÷ MR
± RND C = MC
Keywords
Year 10