‘Moment of inertia’ of various shapes

‘Work’ in science

Work means pushing or lifting something — like moving a box across the floor.

3D Location of the Ursa Minor(Polaris)

Play this physics game and see what happens.

7-segment display(FND)

See how a screen lights up tiny dots or beams to build a moving picture.

A Clock

Use A Clock to measure a quantity and read how the scale responds.

A Spaceship without Deceleration Engine

Play this physics game and see what happens.

Absorption and Emission of Light

Atoms absorb light to jump up, then emit light when they fall back down.