4th class science force, work and energy video session 1
In this session teacher has discussed about - force, work and energy, types of forces, gravity, friction, work and machines, lever, pulley, wheel and axle, inclined plane, screw, wedge.
In this session teacher has discussed about - force, work and energy, types of forces, gravity, friction, work and machines, lever, pulley, wheel and axle, inclined plane, screw, wedge.
In this session teacher has discussed about - Force, work, and energy. Simple machines –Wheel and axle, Wedge, Screw
In this session teacher has discussed about - force, work and energy, energy and its resources, chemical energy, mechanical energy, heat energy, light energy, magnetic energy, sound energy, sources of energy, sun, chemical form, wind, windmills,