Feb 17th 2023

Define and Inquire

This engineering task is creating a purposeful and straightforward device that is able to demonstrate energy transfer.

Ideas and Plans

Interested devices

  • Colorful lamps – Electric energy-Light energy
  • Electric cars – Electric energy-Kinetic energy
  • Solar power flashlight – Light energy-Light energy
  • Cross-bow toy – Elastic energy-Kinetic energy

After researching and brainstorming, my partner, Angel, and I decided to make a bow with elastic energy. We are interested in this type of classic bow; however, it did not demonstrate enough elastic energy. We decided to recreate this idea of a traditional bow and create a cross-bow that contains more usage of rubber bands.

Elastic – Kinetic

Man Kung Hunting 150lbs Wood Hunting Crossbow Powerful Bow Cross Bow New, Crossbows - Amazon Canada

Target audience

-Children

A simple mini version of a cross-bow can be a playful toy for children. Also, the recyclable materials make it an excellent reference for a DIY object example.

-Physics students

Since the cross-bow has a clear usage of rubber bands, it could be an example of elastic energy for novice physics students.

Pros and Cons

Pro – The usage of recyclable materials made our project more environmentally. In addition, the energy transfer of elastic to kinetic is evident and clear, which makes it a great energy transfer example that can be used in science classes.

Cons – The sharpness of the arrow might be dangerous, considering our targeted audience is children and students, so we decided to add protection to the tip of the arrow.