Exploring Elastic Energy Through Catapults and Experiments

Phil McCordick hosts Science Max, where he scales up everyday science experiments. This episode focuses on elastic energy, demonstrated through building and enhancing catapults and a paddle wheel boat. Phil explains the science behind elasticity, constructs a small catapult, and then collaborates with a mechanical engineer to build a larger version capable of launching pumpkins. The episode also humorously explores the historical use of catapults. Finally, Phil tests a paddle wheel boat powered by elastic force, showcasing the principles of elasticity in a fun and educational manner.

What is the main topic of this episode of Science Max?

• Electric Circuits

• Magnetism

• Elastic Energy

• Chemical Reactions

Which of the following materials has the highest elasticity?

• Steel Bar

• Rubber Band

• Pencil

• Ice Cream Sundae

What is the first step in building a small catapult?

• Twisting the elastics

• Attaching the spoon

• Creating the frame with pencils and popsicle sticks

• Adding the cross brace

Why do we use pencils and popsicle sticks in the small catapult?

• Because they are easy to find

• Because they are colorful

• Because popsicle sticks are stronger

• Because pencils are longer and allow twisting

What material did medieval times use for large catapults instead of elastics?

• Metal Chains

• Rope

• Wooden Planks

• Leather Straps

What is the purpose of the cross brace in the larger catapult?

• To hold the pumpkin

• To stop the arm

• To add weight

• To increase height

What modification did Zach suggest to improve the catapult's performance?

• Adding more weight

• Using a sling

• Shortening the arm

• Changing the basket

What additional material did they use to increase the catapult's power?

• Metal Springs

• Rubber Bands

• Wooden Planks

• Surgical Tubing

What was the main challenge Phil faced with the paddle wheel boat?

• It sank

• It moved too fast

• It stopped moving in the middle of the pool

• It was too heavy

Tags

CCSS.RI.1.4

CCSS.RI.2.1

CCSS.RI.3.1

CCSS.RL.2.1

CCSS.RL.3.1

What was the final result of the maxed-out catapult test?

• The pumpkin flew over the wall

• The catapult broke

• The pumpkin fell short

• The pumpkin hit the castle wall