Wind Tunnel

What is your first task in making your wind tunnel?

• Cut straws and leave them all over the ground

• Make a cardboard tunnel

• Find funny pictures online

• Just sit and do nothing

Which of the following best represents the shape of your tunnel?

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What are the straws used for?

• decoration

• positioning airflow

• making wind

• drinking soda

Where do you place the large rolls or tubes?

• Closest to the fan

• Near the part where the air comes into the tunnel

• In the middle of the tunnel

• Spaced throughout the tunnel at locations you choose

What is the rope light used for?

• to create the smoke

• to decorate the tunnel

• to make it easier to see the test object

• to add heat to the air

Which direction does the air flow through the tunnel?

• from fan to output

• from input to fan

• from the tubes to the fan

• through the tube into the fan

Why do the walls shrink down from the fan to the tunnel?

• to decrease the speed of the air

• to make the air blow straighter

• to increase the speed of the air

• to increase the temperature of the air

What is Bernoulli's principle?

• fluids that are compressed (higher pressure) speed up

• volume and area make fluids move faster

• fluids are air and water

• fluids with a larger volume move faster