1 Flashcards

1
Q

Field Strength

A

F per unit ___ on a small test ____ placed at that point in a field.

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2
Q

Relative PE

A

WD moving ____ object between 2 points in field

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3
Q

Abs0lute PE

A

WD moving _____ object between 0 potential to that point in field

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4
Q

RELative Potential

A

WD per unit ____ moving small +ve test ____ between 2 points in field

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5
Q

Abs0lute Potential

A

WD per unit ____ moving small +ve test ___ between 0 potential to that point in field

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6
Q

Newton Law of Gravitation

A

every paqrticle attracts each other with F thats directly proportional to product of their masses n inversly proportional to square of their radial seperation r

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7
Q

Potential (Radial)
PE ( G)
PE (E)
FS (E/G)

A

=kQ/r
=GMm/r = Fh
kQQ/r = VQ
= -ve gradient Ve/r or Vg/r

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8
Q

Local Zero

A

gravitational fields near the earth surface can be taken as uniform and the local zero is set at ((table, floor, sea level))

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9
Q

Absolute Zero

A

Used with radial fields separated to infinite range. Due inverse square law, absolute zero can be taken to be at infinity

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10
Q

Conservative fields

A

Both fields conservative therefore change in P/PE moving between two points depends only on straight line distance and not on path.

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