_________ means pushing or pulling an object.
Work
Force
Pulley
Lever
___________ is a vibration transmitted through a solid, liquid or gas.
Heat
Light
Sound
Electrical energy
Most of the ___________ energy we use comes from burning fuels like coal, kerosene and petrol.
Electrical
Hydropower
___________ is the most readily available source of energy.
Wind
Solar
__________ is one of the oldest sources of energy.
Wind energy
Heat energy
A stretched bow possesses mechanical energy due to its stretched position.
Mechanical
____________ is nature's way of transferring energy through space.
______ is the ability to do work.
Energy
Screw
Hammer
________ energy is heat from within the earth.
Geothermal
Choose the right answer _______ is the movement of electrical charges.
Sound energy
Light energy