Building a Catapult with Elastic Force

What simple materials are suggested for building a catapult in the video?

• Metal rods and springs

• Plastic spoons, pencils, and elastics

• Wooden planks and nails

• Rocks and ropes

What is the primary scientific principle behind the functioning of the catapult?

• Gravitational force

• Elastic force

• Frictional force

• Magnetic force

What property of elastic materials is crucial for the catapult's operation?

• Their ability to conduct electricity

• Their ability to absorb water

• Their tendency to return to their original shape

• Their resistance to heat

What is the term used for the twisting force applied in the catapult?

• Shear

• Compression

• Tension

• Torsion

What is the purpose of using a longer arm in the larger catapult?

• To reduce the number of materials needed

• To make the catapult more stable

• To throw objects further

• To increase the weight of the catapult