Here is a toy train that shows forces and movement very clearly.
The force is clockwork, and the movement is the toy train as is chugs around a snowy village made of paper...
Playing time: 2 minutes. (For hints on using videos click here.)
Here is a toy train that shows forces and movement very clearly.
The force is clockwork, and the movement is the toy train as is chugs around a snowy village made of paper...
