Propulsión

The video explains how propulsion systems work by generating acceleration forces that are counteracted by equal and opposite forces, as described by Newton's Third Law. It specifically focuses on jet engines, which expel gases backward to propel planes forward, demonstrating the practical application of these principles.

What is a key characteristic of any propulsion system?

• It only generates a forward force.

• It produces an acceleration force.

• It does not involve any forces.

• It only works in space.

What happens when a propulsion system generates an acceleration force?

• It only moves backward.

• It creates a vacuum.

• It generates an equal and opposite force.

• It stops functioning.

In a jet engine, what is expelled to create movement?

• Fuel

• Gases

• Air

• Water

How do the expelled gases affect the plane?

• They slow it down.

• They exert an equal force on the plane in the opposite direction.

• They make it hover.

• They have no effect.

What is the result of the forces exerted by the jet engine on the plane?

• The plane moves backward.

• The plane remains stationary.

• The plane is propelled forward.

• The plane spins in circles.