Wind racers science

 Wind racers. 

Aim: To make our wind racer go the farthest. 

Research: youtube

Equipment:  

-trolly

-bamboo

-cardboard 

-newspaper

-tape

-string 

-plastic bag 

Method:

1. Cut a large triangle out of paper 

2. Put a cardboard strip/popsicle sticks on the bottom of the sail to keep it straight and weigh the sail down a bit

3. tape the paper to the post and the bottom of the cart to keep the sail straight. 

4. find some wind and race

Results: 

This is the result of our building and when we did the race it won! 

Discussion: Our racer won because of the large sail that we put on it and it was able to catch the wind better than others. but another thing is that there's a downside to having a big sail and that's air resistance which slowed our cart down considerably. But because our cart moved slowly it was able to catch more wind and go further than others. Another force that acted on the racer was thrust that was supplied by the wind/leaf blower and the gravity that keep it on the ground which is why I chose to have a metal bar because that increased our weight making the racer more stable and more resistant to falling over like some others did. 

Conclusion: the wind racer work and won the race going further than any other and building it again I would do nothing different but maybe I'll try a bamboo stick next time.