Terminal Velocity

The video explains the concept of free fall and terminal velocity, highlighting how objects accelerate due to gravity until air resistance balances the gravitational force, resulting in a constant speed. It discusses how terminal velocity varies with weight and shape, and uses skydiving as an example to illustrate how parachutes increase air resistance, reducing terminal velocity to ensure safety.

What is terminal velocity?

• The maximum constant speed a falling object can reach

• The speed at which air resistance is zero

• The speed at which an object starts falling

• The speed at which an object stops falling

How does weight affect terminal velocity?

• Heavier objects have lower terminal velocities

• Weight does not affect terminal velocity

• Heavier objects have higher terminal velocities

• Lighter objects have higher terminal velocities

What happens to air resistance as an object gains speed?

• It increases

• It becomes zero

• It remains constant

• It decreases

Why does a skydiver open their parachute?

• To increase their speed

• To decrease air resistance

• To increase air resistance and reduce terminal velocity

• To stop falling immediately

What would happen if a skydiver did not use a parachute?

• They would float in the air

• They would reach a safe terminal velocity

• Skydiving would be extremely dangerous

• They would not fall at all