a)It is transformed back into gravitational potential energy.
b)The energy goes to producing sound and to heating the ground, rock, and surrounding air.
It is lost forever.
c)Energy does not have to be conserved.
d)The energy goes into the ground and, as a result, the orbit of the earth about the Sun is slightly changed.
e)The rock keeps the energy inside it (saving it for later use).
2007-01-20 08:29:40 · 10 answers · asked by Goodtimes 2 in Science & Mathematics ➔ Astronomy & Space
The potential energy is converted to kinetic energy as the rock speeds up. The kinetic energy is converted to heat and sound when it strikes the ground. d) is a consequence.
2007-01-20 08:39:21 · answer #1 · answered by Mike1942f 7 · 0⤊ 0⤋
a) No. Potential energy is transformed into kinetic energy.
b) Yes.
c) Energy is always conserved. This is the first principle of thermodinamics. It changes its form (kinetic, heat, etc.)
d) Orbit around Sun does not changes, becase the changes took place in an isolated system, so reaction forces are equal to action forces.
e) No. The potential energy is not kept into the rock. It is lost for a practical work.
2007-01-20 08:47:56 · answer #2 · answered by Jano 5 · 0⤊ 0⤋
b) is the right answer, but d) has something to say for it---while you were holding the rock up, the center of mass of the Earth-rock system was orbiting the Sun; after the rock is dropped, the center of mass shifts (very slightly) and so the Earth is in a (very slightly) different orbit---but this is not because the potential energy goes "into the ground".
2007-01-20 09:34:55 · answer #3 · answered by cosmo 7 · 0⤊ 0⤋
A. even nevertheless confident, some capability is switched over into warmth and sound, once you drop a rock onto the floor you hear a average thud. you are able to no longer even experience the warmth. this is by using the fact it transferred the countless capability into the floor, which then strikes the earth (very) fairly off its orbit. think of of dropping it on your hand; you hear it hit, yet especially you experience it landing on your hand because of the fact the capability is transferred into your hand.
2016-10-07 11:22:57 · answer #4 · answered by ? 4 · 0⤊ 0⤋
this potential is realised as movement to the ground, which is partially translated into frictional heat.
energy is neither created nor destroyed it can be stored or translated into other forms.
God bless,
gabe
2007-01-20 09:41:27 · answer #5 · answered by gabegm1 4 · 0⤊ 0⤋
Make sure our foot is not under the rock.
2007-01-20 08:36:49 · answer #6 · answered by Anonymous · 0⤊ 0⤋
a,c,e are nonsense. Don't understand d.
I'd go for b.
2007-01-20 08:43:53 · answer #7 · answered by Anonymous · 0⤊ 0⤋
B is correct.
2007-01-20 10:03:26 · answer #8 · answered by Anonymous · 0⤊ 0⤋
b) and I'd bet my eye teeth on it.
2007-01-20 09:02:01 · answer #9 · answered by Mr. NoneofYourbusiness 3 · 0⤊ 0⤋
Not C or E.
2007-01-20 08:34:25 · answer #10 · answered by SlowClap 6 · 0⤊ 1⤋