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Extras

Experimental determination of amplitude and the period of oscillation

Investigating the position-time and the velocity-time graph

Comparing the periods of the motions with different amplitudes with the position-time graph.

Showing the conservation of linear momentum and the conservation of energy

The one with double mass collides into the stationary one

A moving car collides into a stationary one of double mass

Two cars with different velocities have a head-on collision

Experimental investigation of conservetion of linear momentum in case of closed system of particles

Dynamic mass measurement with elastic collision of cars

Dynamic mass measurement with inelastic collision of cars

Illustrating the concept of steadily slowing speed using the speed-time graphs.

Illustrating the concept of steadily slowing speed using the speed-time graphs.

Investigating the motion of Santa Claus using its position-time and velocity-time graphs.

A guide about the meaning of icons found in digital lessons and the possibilities of using them.

Reindeer are special animals. Let’s see why.

Let's celebrate Halloween together.

Christmas is in danger! Help Santa, or he won't be able to deliver the presents.

Let's prepare for the holidays together!