Exercise:
Which of the
following is non-renewable resource?
a) wind
b)water
c) wild life
d) natural gas
Rida lit a matchstick, what form of energy did she use?
a) electrical
b) chemical
c) elastic
d) light
Karmran is sitting motionless on a chair, his kinetic energy is……..
a) maximum
b) minimum
c) zero
d) twice
When ice-cream is melting down, what type of energy is melting it?
a) electric
b) thermal
c) chemical
d) light
The energy used to cook food in microwave oven is a form of…….
a) electrical energy
b) thermal energy
c) elastic energy
d) light energy
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The energy used to cook food in a microwave oven is: Electrical Energy Microwave ovens use electrical energy to generate microwaves, which are then used to heat and cook food. The microwaves penetrate the food and cause the water molecules to vibrate rapidly, generating heat through dielectric heating. So, while the end result is thermal energy (heat) in the food, the initial energy form used to power the microwave oven is electrical energy. |
B
by at 2025-04-04 19:24:06