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Thursday, September 10, 2020

 Aim: to make a mashmallow shooter and work out what forces are actin gon it.

Equipment: paper clip, scissors, balloon, mashmallow.

Method:

1. cut out the bottom of the cup

2. cut off the neck of the balloon

3. stretch the open end of the balloon over the bottom of the cup

4. place marshmallow in cup

5. pull balloon back to fire marshmallow

Results:



Discussion:

when the marshmallow was in the cup all the forces ( thrust, friction, gravity and support) were evem a it want moving. when the marshmallow left the cup then the thust force was greater as it sped up. as it came back down to the ground then gravity and friction/ drag were the greater forces as it slowed down.


Conclusion:

yes it worked really well. some groups taped the balloon to the side of the cup which made it more stable which i would include next time.


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