Srate the enero
oscillating pendulum
nergy changes taking place in the following.
2 charging of a battery
4. light bulb
6. hair dryer
& loudspeaker
alarm clock
answer briefly
mention the ener
cooking gas. gree
define the terms.
3. mention two
the energy conversions taking place in the followin
ing gas. green plants, electric cell
ne the terms: renewable and non-renewable sources of energ
stion two methods of saving energy.
what factors does kinetic energy depend?
what is nuclear fission and fusion? where is it observed?
ace in the following devices electric fan. burning of
4. on what
5. what is nu
numericals
calculate work done when a 40 n formen
if work done is 2000 j. how
produces a displacement of 20 m in the direction of force.
la be the force, if displacement is 10 m in the direction of
wmu
force?
3. if the king
a skier stands on
if the kinetic energy of a dog and horse are the same, which one has
stands on top of a hill and skies down. find
ne, which one has a greater speed
400
1. skier's potential energy at a
skier's potential energy at b.
3. skier's kinetic energy at b.
15 m