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Sunday, 2 July 2017

Science

This term for a week we have been making 2 things that use elastic energy, the other thing we also used one thing that was a big wimp because it didn't use elastic energy.

The first thing I made was a flipping frog. It used cardboard, a rubber band and sellotape. It relied on the elastic energy to fling it up like a frog. The elastic energy came from  from the rubber band.

Second we had the projectile launcher. It would fire heavy balls. When it does that you could measure it would have the option of medium range or long range and short range.
The best angle was 30 on Medium range and the worst angle was 90.


Last but not least we had the rocket launchers it uses elastic bands, sticks and paper. This one used the elastic band to fling the rocket so it was also basically one of the top priorities.

The best angle was 30 on Medium range and the worst angle was 90.









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