Terminal Velocity and Air Resistance

What force pulls an object or person towards the surface of the Earth when falling from a great height?

• Magnetism

• Friction

• Gravity

• Buoyancy

What happens to the speed of an object or person as they fall from a great height?

• They slow down

• They remain constant

• They accelerate

• They stop

What force pushes against the falling object or person, slowing them down?

• Magnetism

• Gravity

• Buoyancy

• Air resistance

When does an object or person stop accelerating while falling?

• When they jump

• When they slow down

• When air resistance equals gravity

• When they reach the ground

What is the term used to describe the point where air resistance equals gravity for a falling object?

• Terminal velocity

• Acceleration point

• Maximum speed

• Free fall

What determines the terminal velocity of different objects falling through the air?

• Speed

• Temperature

• Shape, size, and mass

• Color

What is the approximate terminal velocity for a human falling through the air?

• 120 miles per hour

• 100 miles per hour

• 150 miles per hour

• 50 miles per hour

Why is a parachute used when falling from a great height?

• To increase speed

• To decrease air resistance

• To increase air resistance

• To perform tricks

What effect does deploying a parachute have on a falling person or object?

• It speeds up the fall

• It stops the fall

• It makes the fall dangerous

• It slows down the fall

What should be done to slow the fall of small objects?

• Use a stopwatch

• Design and make a parachute

• Increase weight

• Decrease size