marshmallow catapult shooter

Marshmallow Catapult shooter

 Aim: To make a marshmallow shooter and work out what forces are acting on it.

Experiment- Paper cup, scissors, balloon, marshmallow

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 the 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, support) were even as it wasn't moving. When the marshmallow was shot out the cup the force used was support and when it came to the ground gravity and force/ friction were the main force.

Conclusion:  The Marshmallow catapult worked well. Some people had to cellotape their balloon to the cup so it would stay attached. The marshmallows shot quite far.