Advertisements
Advertisements
प्रश्न
Name the device or machine which convert :
Heat energy into kinetic energy (or mechanical energy).
Advertisements
उत्तर
A steam engine converts heat energy into mechanical energy.
APPEARS IN
संबंधित प्रश्न
A ball is placed on a compressed spring. What form of energy does the spring possess? On releasing the spring, the ball flies away. Give a reason.
State the condition under which the mechanical energy is conserved.
Two bodies having equal masses are moving with uniform speeds of v and 2v respectively. Find the ratio of their kinetic energies.
Name the device or machine which convert :
Chemical energy into kinetic energy (or mechanical energy).
Fill in the blanks with suitable words:
When a ball is thrown upwards, ___________ energy is transformed into ___________ energy.
How much electrical energy in joules does a 100 watt lamp consume : in 1 second?
How much electrical energy in joules does a 100 watt lamp consume : in 1 minute?
A bulb lights up when connected to a battery. State the energy change which takes place :
What is the meaning of the symbol kWh? What quantity does it represent?
In the case of negative work, the angle between the force and displacement is
