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

Question : The work done by the string of a simple pendulum during one complete oscillation is equal to

Option 1: The total energy of a pendulum

Option 2: Kinetic energy of the pendulum

Option 3: Potential energy of the pendulum

Option 4: Zero

Question : Select the most appropriate meaning of the given idiom.
By hook or by crook

Option 1: Using a lot of energy and effort to do something

Option 2: Using whatever methods are necessary

Option 3: Making more of an effort

Option 4: Probably possible, but it will be difficult

Question : If both the mass and the velocity of a body are increased to twice their magnitude, the kinetic energy will increase by:

Option 1: 2 times

Option 2: 4 times

Option 3: 8 times

Option 4: 16 times

Question : One calorie of heat energy is equivalent to approximately ____________ joules of mechanical energy.

Option 1: 0.24

Option 2: 0.48

Option 3: 2.4

Option 4: 4.2