Reducción de la fricción – El que no pertenece

The video discusses the differences between an airplane, race car, high-speed train, and parachute. It highlights that while the airplane, race car, and high-speed train are designed to reduce friction, the parachute is designed to increase friction, making it unique among the listed items.

Which of the following is not a vehicle mentioned in the introduction?

• High-speed train

• Race car

• Bicycle

• Airplane

What makes the parachute different from the other vehicles?

• It is more expensive

• It is designed to increase friction

• It is faster

• It is used for racing

Which of these vehicles is designed to reduce friction?

• Boat

• Bicycle

• Airplane

• Parachute

How does a high-speed train manage friction?

• By using it for speed

• By reducing it

• By ignoring it

• By increasing it

What is the primary purpose of a parachute in terms of friction?

• To reduce speed

• To increase friction

• To decrease weight

• To enhance aerodynamics