Download App

Heat — PHYSICS STD 9 — Question

ICSE BoardEnglish MediumSTD 9PHYSICSHeat1 Mark
Question
State reason why any energy transfer cannot be 100%.
✓

Answer

Any energy transfer is not 100% because energy is lost to the surroundings in the form of heat, friction losses during the transfer of energy. Therefore complete energy is not transferred.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "[1 Mark Question Answer]" from Heat→Heat — all question types→PHYSICS STD 9 question papers→ICSE Board STD 9 question papers→ICSE Board question paper generator→

Similar questions

Distinguish between an atom and an ion.
→
Name three green house gases.
→
What do you mean by reflection?
→
Mention one main application of convex mirrors.
→
Arrange the following speeds in increasing order. $10\ m s^{-1}, 1\ km \min^{-1}$ and $18\ km\ h^{-1}.$
→
'More the mass, the more difficult it is to move the body from rest'. Explain this statement by giving an example.
→
Name the sound of the frequency given below:
40 kHz
→
Does ultrasonic in a medium travel faster than the audible sound?
→
Describe condition for
1. nuclear fission
2. nuclear fusion.
→
What causes sound?
→