Most of the ___________ energy we use comes from burning fuels like coal, kerosene and petrol.
Heat
Electrical
Sound
Hydropower
Energy can neither be created nor destroyed. Energy just changes from one form to another.This is
Law of constant composition
Law of conservation of energy
Law of equipartition
Le shatleir principle
______________ energy is a renewable energy source.
Nuclear
Geothermal
______ is the ability to do work.
Force
Energy
Screw
Hammer
___________ is a vibration transmitted through a solid, liquid or gas.
Light
Electrical energy
A wheel with a rod attached to it is known as ______ arrangement.
Fixed pulley
Movable pulley
Wheel and axle
Choose the right answer _______ is the movement of electrical charges.
Heat energy
Sound energy
Light energy
A stretched bow possesses mechanical energy due to its stretched position.
Mechanical
______________energy is the energy which is possessed by an object due to its motion or due to its position.
Solar
Water
_____________ is a simple machine used to hold things tightly together.
Scissors
Pulley