Rubber Band Powered Cup Launcher
Channel: Kids Fun Science
Date: 2023-03-10

Rubber Band Powered Cup Launcher
Made for parents and teachers

Plastic cups
https://amzn.to/3Jbr2QN 

Rubber Bands
https://amzn.to/3yu1w45

Science Kits and more
https://elementarysciencen.wixsite.com/sciencekits

Kids Fun Science Online Store 
https://teespring.com/stores/kids-fun-science

My Filming equipment:
Cell Phone Tripod 54 inch Travel Tripod with Bluetooth Remote - https://amzn.to/34REzbB 
Blue Yeti USB Microphone - https://amzn.to/3ePJwGu 
Green screen & lights - https://amzn.to/2XT9Yc1 
Apple iMac 21.5in 2.7GHz Core i5 8GB memory - https://amzn.to/34ZMIe7
iPhone 12 - hhttps://amzn.to/3JZvcKI
iMovie for editing

Chapters
0:00 Kids Fun Science Intro
0:08 What you need
0:24 Setup
0:51 1st experiment larger cup 
1:08 1st experiment smaller cup 
1:21 2nd experiment larger cups double rubber bands
1:58 2nd experiment smaller cups double rubber bands
2:27 3rd experiment larger cups double rubber bands with two rocket cups (two staged rocket)
3:05 Highest launch

Houston get ready to launch! Place a cup (base cup) upside down on a flat surface. This is your launcher. Then put the "rocket" Cup with rubber bands over the base cup. Holding the lip of the rocket cup, pull down and release! Watch your "rocket" go flying!

Try single rubber band
Try double rubber bands 
Try double rubber bands with two rocket cups (this worked best for me)

Science behind it
POTENTIAL AND KINETIC ENERGY
As you stretch the rubber bands over the cup, you are storing up energy by putting tension on the rubber band. This stored up energy is called potential energy. The more the rubber band stretches, the more energy is stored. This is why the further the launcher is pressed down over the cup, the further it flies. When you release the rubber band, the tension is released and the potential energy is transformed into kinetic energy, which is energy in motion. 

What do you think would happen if you used cups of different materials and strengths (i.e.: size, paper or plastic cups of varying thicknesses)? Test your hypotheses by making rocket launchers with these cups and record your observations.

Comment below on how high your rocket flies?
What did you use to get it to go so high?
What worked best?

#rocketlaunching #RubberBandPoweredCupLauncher #rubberbandedcuplauncher