A second-class lever Whiteboard exercise Play

A second-class lever Whiteboard exercise Play

A see-saw Student activity Play

A see-saw Animation Play

A see-saw Simulation Play

A see-saw Whiteboard exercise Play

A semiconductor diode Student activity Play

A semiconductor diode Slideshow Play

A semiconductor diode Animation Play

A semiconductor diode Whiteboard exercise Play

A series combination of resistors Animation Play

A shot from a cannon Animation Play

A simple electric motor Illustration Play

A simple generator of alternating current Student activity Play

A simple generator of alternating current Whiteboard exercise Play

A simple hydraulic machine Animation Play

A simplified transistor Animation Play

A sound box Student activity Play

A sound box Whiteboard exercise Play

A source of heat Animation Play

A source of light Student activity Play

A source of light Whiteboard exercise Play

A source of voltage Student activity Play

A source of voltage Animation Play

A source of voltage Whiteboard exercise Play

A space sailing ship Animation Play

A spoon in a glass of water Animation Play

A spoon in a glass of water Animation Play

A spring Animation Play

A standing wave Student activity Play