Question : Gliders depend on the following energy for their flight:
Option 1: wind energy
Option 2: electrical energy
Option 3: heat energy
Option 4: chemical energy
Correct Answer: wind energy
Solution : The correct answer is wind energy.
The gliders, or engineless aircraft, are entirely propelled by wind power. The airflow around a plane's wings may be changed by the pilot manipulating certain surfaces on the wing, which affects the lift and altitude of the aircraft.
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Question : dynamo is a device for converting
Option 1: heat energy into electrical energy
Option 2: mechanical energy into electrical energy
Option 3: megnetic energy into electrical energy
Option 4: chemical energy into electrical energy
Question : What type of energy conversion takes place in a battery?
Option 1: Chemical energy into light energy
Option 2: Chemical energy into electrical energy
Option 3: Mechanical energy into chemical energy
Option 4: Chemical energy into sound energy
Question : Which non-conventional energy source depends on the sun's heat?
Option 1: Wind energy
Option 2: Tidal energy
Option 3: Geothermal energy
Option 4: Solar energy
Question : In which form is the supplied heat energy stored during change in temperature of substance?
Option 1: Heat energy
Option 2: Kinetic energy
Option 3: Potential energy
Option 4: Both kinetic and potential energy
Question : A flying jet possesses____________.
Option 1: potential energy
Option 2: kinetic energy
Option 3: wind energy
Option 4: both kinetic and potential energy
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