Has the first law of thermo dynamics been broken?

In summary, the conversation discusses the energy of a falling rock and how it changes when the rock reaches terminal velocity. It is noted that while kinetic energy remains constant, gravitational potential energy decreases. The question of where the lost energy goes is raised, with suggestions that it is converted into sound and heat energy due to air resistance. Another question is posed about why the space shuttle gets very hot when traveling through the upper atmosphere, and the idea of an extra channel for energy loss is mentioned. It is ultimately concluded that the first law of thermodynamics cannot be broken by this phenomenon.
  • #1
aeromike
1
0
If :

The total energy of a falling rock = G.P.E. (mass x gravity x height) + K.E. (0.5 x mass velocity^2)

But if a rock reaches terminal velocity (i.e velocity remains the same) but height keep decreasing, then surely Kinetic energy is remaining constant and Gravitational potential energy is decreasing. Where is the loss of energy going?

Has the first law of thermo dynamics been broken? or is it simply converted into sound energy and heat energy due to air resistance? HHmmmmmm
 
Physics news on Phys.org
  • #2
aeromike said:
If :

The total energy of a falling rock = G.P.E. (mass x gravity x height) + K.E. (0.5 x mass velocity^2)

But if a rock reaches terminal velocity (i.e velocity remains the same) but height keep decreasing, then surely Kinetic energy is remaining constant and Gravitational potential energy is decreasing. Where is the loss of energy going?

Has the first law of thermo dynamics been broken? or is it simply converted into sound energy and heat energy due to air resistance? HHmmmmmm

Why do you think the space shuttle gets VERY HOT when it goes through the upper atmosphere? What do you think is the extra channel for energy loss?

First law of thermodynamics can't be broken by something this obvious!

Zz.
 

Related to Has the first law of thermo dynamics been broken?

1. What is the first law of thermodynamics?

The first law of thermodynamics, also known as the Law of Conservation of Energy, states that energy cannot be created or destroyed, only transferred or converted from one form to another.

2. Has the first law of thermodynamics ever been broken?

No, the first law of thermodynamics has never been broken. It is a fundamental law of physics that has been observed and tested countless times, and has always been found to hold true.

3. Are there any exceptions to the first law of thermodynamics?

No, there are no known exceptions to the first law of thermodynamics. It is a universal law that applies to all physical systems and processes.

4. Can the first law of thermodynamics be violated in extreme conditions?

No, even in extreme conditions such as black holes or the beginning of the universe, the first law of thermodynamics still holds true. It may appear to be violated, but this is due to our limited understanding of these phenomena.

5. What evidence supports the first law of thermodynamics?

The first law of thermodynamics is supported by numerous experiments and observations in various fields of science, including thermodynamics, mechanics, and electromagnetism. Its validity has also been confirmed by the successful development and application of technologies such as engines and power plants.

Similar threads

Replies
20
Views
3K
Replies
4
Views
19K
Replies
15
Views
1K
Replies
3
Views
3K
Replies
4
Views
2K
Replies
10
Views
2K
Back
Top