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38 Cards in this Set
- Front
- Back
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to decrease the terminal velocity you need...
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a low mass
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more time=
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less force
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terminal velocity is...
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when the force is the same as gravity, when the object stops accelerating.
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accelerate a toy car-
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gaining KE.
loosing PE EVENTUALLY LOOSES ITS ENERGY, BECAUSE ENERGY IS ALWAYS CONSERVED. |
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a toy car decellerates because of...
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friction!
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energy turns into...
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heat and sound.
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when the shows were walking on the table horizontaly...
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it didn't have enough potential to overcome gravity.
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did work on the bowling ball.
work= |
mgh
(mass x acceleration due to gravity x height) |
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no gravitational energy relative to the rope-
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equalibrum!
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the bowling ball never went back to its orig. state because of...
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friction.
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sabb getting ontop of desk-
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gained gravitational potential energy.
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power=
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work/time
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force=
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m x a.
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work=
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f x d.
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PE=
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F X D = MGH
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KE=
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1/2 MV SQUARED.
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T=
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SQUARE ROOT OF 2H/G
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Similar materials often...
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create friction.
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1 cal=
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4,187 J.
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to decrease the terminal velocity you need...
|
a low mass
|
|
|
more time=
|
less force
|
|
|
terminal velocity is...
|
when the force is the same as gravity, when the object stops accelerating.
|
|
|
accelerate a toy car-
|
gaining KE.
loosing PE EVENTUALLY LOOSES ITS ENERGY, BECAUSE ENERGY IS ALWAYS CONSERVED. |
|
|
a toy car decellerates because of...
|
friction!
|
|
|
energy turns into...
|
heat and sound.
|
|
|
when the shows were walking on the table horizontaly...
|
it didn't have enough potential to overcome gravity.
|
|
|
did work on the bowling ball.
work= |
mgh
(mass x acceleration due to gravity x height) |
|
|
no gravitational energy relative to the rope-
|
equalibrum!
|
|
|
the bowling ball never went back to its orig. state because of...
|
friction.
|
|
|
sabb getting ontop of desk-
|
gained gravitational potential energy.
|
|
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power=
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work/time
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force=
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m x a.
|
|
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work=
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f x d.
|
|
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PE=
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F X D = MGH
|
|
|
KE=
|
1/2 MV SQUARED.
|
|
|
T=
|
SQUARE ROOT OF 2H/G
|
|
|
Similar materials often...
|
create friction.
|
|
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1 cal=
|
4,187 J.
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