Steam engines
This task is about energy transformation.
Question
1
Change answer
a) Steam engines transfer the energy of boiling water into the energy of movement.
But steam engines are only about 3% efficient. Explain what this statement means.
a) Steam engines transfer the energy of boiling water into the energy of movement.
But steam engines are only about 3% efficient. Explain what this statement means.
Question
1
Change answer
b) If the steam generated is producing 1000 joules of energy each second, and the efficiency of the engine is 3%, how much energy would be changed into the energy of movement?
b) If the steam generated is producing 1000 joules of energy each second, and the efficiency of the engine is 3%, how much energy would be changed into the energy of movement?
joules per second
Question
1
Change answer
c) Name
three
forms of energy that the other 97% of the energy is transformed into:
c) Name
three
forms of energy that the other 97% of the energy is transformed into:
1.
2.
3.
Published on
https://newzealandcurriculum.tahurangi.education.govt.nz