Parachute Physics and Functionality

The video explains the concept of free-fall and terminal velocity, highlighting that a person free-falling can reach speeds of 124 miles per hour. It discusses how parachutes are used to slow down this speed by creating air resistance, reducing terminal velocity by about 90%. The video also mentions the use of parachutes in various fields, such as high-speed aircraft and athletics, and concludes with a nod to the US Air Force and further learning opportunities.

At what speed would you be traveling if you were free-falling from the sky with arms outstretched?

• 150 miles per hour

• 200 miles per hour

• 124 miles per hour

• 100 miles per hour

What is terminal velocity?

• The speed at which an object stops accelerating during free-fall

• The speed at which an object takes off

• The speed at which an object starts accelerating during free-fall

• The speed at which an object reaches the ground

What forces are involved in achieving terminal velocity?

• Gravity and friction

• Drag force and buoyancy

• Air resistance and lift

• Thrust and drag

What is the most popular method to slow down during free-fall?

• Deploying a parachute

• Spreading your arms and legs

• Using a wingsuit

• Using a jetpack

By how much can a parachute reduce your terminal velocity?

• 50%

• 70%

• 90%

• 100%

To what speed can a parachute slow you down during free-fall?

• 20 miles per hour

• 15 miles per hour

• 12 miles per hour

• 10 miles per hour

Which of the following is NOT an application of parachutes?

• Drag racing cars

• High-speed aircrafts

• Submarines

• World-class athletes

What is the primary purpose of a parachute?

• To increase speed

• To create lift

• To navigate in the air

• To reduce terminal velocity

What is the main factor that allows parachutes to slow down an object?

• Creating a large surface area

• Increasing weight

• Reducing air resistance

• Increasing gravity