gravitationla field and gravitational force

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17 Terms

1
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What is Newton’s Law of universal gravitation formula

Fg=Gm¹m¹/r²

2
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What does the field theory allocate

the gravitational force on an object to the presence of a gravitational speed

3
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what is linear motion

when an object released from high distance falls to the ground, the earth pulls on the object

4
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what is circular motion

moon stays in orbit because of the Earth’s gravitational pull

5
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What does gravity provide to keep something in its orbit

centripetal force

6
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what is a free falling object

an object which is only under the influence of gravity

7
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what is gravity

an attractive force that affects anything with mass

8
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what is weight

a name given to a gravitational force exerted by a planet moon or an object

9
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How does the earth’s gravitational force pull on the moon? (in steps)

1)creates a gravitational field around the moon

2)the gravitational force acts over the distance, separating the earth and the moon

10
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What is the earth’s field like?

it is radial (in all directions)

11
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how to differentiate between weak field lines and strong field lines

weak= wider distance between each like

strong=lines closer together

12
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what does a neutral point between the earth and moon’s gravitational field tell us

the net gravitational point is 0

13
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what is newtons’s law of gravitation

2 masses that are attracted to each other because of a force

14
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What does Newton’s 3rd law say?

2 objects with mass will face and equal and opposite force from each other

15
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what does newton’s law of gravitation say

1) force is directly proportional to mass m1 and m2,when force increases mass increases

2) when the earth’s force of gravity travels into space, it weakens with distance, so the force is inversely proportional to the distance between objects

16
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How to:

quadruple Force

double force

quarter the force

double both masses

double one of the masses

double distance between masses

17
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What is G in gm1m2/r2 and why is G not as significant sometimes

G is the universal constant of gravitation (6.672×10’11 Nm2kg-2) and G is not as significant sometimes because its value is small, so for G to be more significant, at least 1 of the masses have to be large (moon sized for example)