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Air drag free#

Do you see a clear trend between the size of the parachutes and how long it takes them to fall? Extra: Make some more parachutes out of differently sized squares from the garbage bag.Which parachute took longer to fall to the ground? Why do you think this is?.About how long did it take the larger parachute to fall? Release the larger parachute from the same height and time how long it takes for it to fall to the ground.About how long did it take to fall on average?

Try this parachute two more times, releasing it from the same height each time. Release the smaller parachute from high above the ground and time how long it takes for it to fall to the ground.Bring a stopwatch and the parachutes to the safe, high surface you found that is about two meters from the ground.What do you think the purpose of the pennies is? Hint: you can try letting the squares float to the ground without the pennies first and see what happens. Securely tape two pennies to the end of the strings on each square.

Air drag free#

Tie the free end of the strings together with an overhand knot.

For each square, hold the center of the square in one hand and pull all of the strings with the other hand to collect them.

Tie one end of each piece of string around each of the knots, positioning the string right above the knot.

Cut the string into eight pieces that are 40 cm (about 16 inches) long each.

Tie a knot in each of the four corners of each square.

Make one be 20 centimeters by 20 cm (about eight inches by eight inches) and one be 50 cm by 50 cm (20 inches by 20 inches).

Cut two squares out of the garbage bag.

Cut open the garbage bag to make a flat sheet of plastic.

Stopwatch (accurate to at least 0.1 seconds).

A good place may be a secure balcony, deck or playground platform.

A safe, high surface, about two meters from the ground.

As the skydiver falls, these "push and pull" forces are nearly in balance.* The air pushes the parachute back up and creates a force opposite to the force of gravity. The force of gravity can make an object fall very fast! The parachute slows the skydiver down because it causes air resistance, or drag force. How does the parachute break the free fall so well?Īs the skydiver is falling, the force of gravity is pulling the person and his or her parachute toward the earth. In the sport of skydiving, a person jumps out of an airplane from a very high altitude, falls through the air, and releases a parachute to help the skydiver slow his or her way down and land safely on the ground.

What do you think will work better: a bigger parachute or a smaller one? In this activity, you will test differently sized parachutes to see how changes in the size of the parachute affect flight. Have you ever wondered how a parachute works-or which design features are most important in slowing someone's descent? Parachutes come in many different shapes and sizes, but they work based on the same general principles.