Rocket Design and Launch Principles

This video tutorial by Professor João Canal guides students in building a PET bottle rocket, suitable for 6th to 9th graders. It covers materials needed, step-by-step construction, adding fins for stability, and final adjustments. The tutorial emphasizes safety and encourages participation in the Brazilian Rocket Show.

What is the recommended size of PET bottles for making the rocket?

• 3 liters

• 2 liters

• 500 milliliters

• 1 liter

Why are bottles with a uniform diameter preferred?

• They are lighter

• They are easier to cut

• They are more durable

• They are easier to fit together

What are the three main parts of the rocket?

• Nose cone, tail, fins

• Nose cone, wings, fins

• Nose cone, body, tail

• Nose cone, body, fins

How many fins are recommended for the rocket?

• Five

• Four

• Three

• Two

What material is suggested for making the fins?

• Metal sheets

• Plastic sheets

• Wood

• Cardboard

What is the purpose of the fins on the rocket?

• To increase speed

• To stabilize the flight

• To add weight

• To improve aerodynamics

Why is it important to add weight to the nose cone?

• To make the rocket heavier

• To improve stability during flight

• To make it look better

• To balance the rocket

What should be the approximate weight added to the nose cone?

• Equivalent to a medium-sized egg

• Equivalent to a large apple

• Equivalent to a small book

• Equivalent to a small stone

What is the ideal angle for launching the rocket to achieve maximum distance?

• 60 degrees

• 45 degrees

• 90 degrees

• 30 degrees

What safety precaution is emphasized for launching the rocket?

• Launch near water

• Launch in an open field

• Launch near buildings

• Launch in a crowded area