Static friction causes motion Student activity Play

Streamlining to reduce friction Illustration Play

The bicycle factory Animation Play

The factor machine Whiteboard exercise Play

The length of a curve Animation Play

The length of a curve Student activity Play

The length of a curve – the small wheel rolling along a rod Whiteboard exercise Play

The lever as a simple machine Slideshow Play

The measurement of the speed of light conducted by Fizeau Animation Play

The movement of a wheel in relation to the surface Animation Play

The movement of the water wheel Whiteboard exercise Play

The remainder machine Student activity Play

The remainder machine Whiteboard exercise Play

The rolling wheel Whiteboard exercise Play

The Second Law of Thermodynamics Whiteboard presentation Play

The Second Law of Thermodynamics Class activity Play

The smaller wheel rolling along the bigger wheel Whiteboard exercise Play

Three wheels Animation Play

Transformation machine Animation Play

Trigonometric functions in nature Student activity Play

Two-part calculations Student activity Play

Using friction Student activity Play

Using tree diagrams Student activity Play

Water wheel Animation Play

Why some objects feel cold to the touch Slideshow Play