Flo’s Flow Woes Flo’s Flower shop has a frequently frustrating flow problem. Flo waters her greenhouse plants using a hose attached to a water tank on.

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Presentation transcript:

Flo’s Flow Woes Flo’s Flower shop has a frequently frustrating flow problem. Flo waters her greenhouse plants using a hose attached to a water tank on the roof. Unfortunately, Flo’s flow isn’t enough for her parched plants. 1. Flo first measures the flow she gets now by sticking the hose in a 50 gal drum and measuring how long it takes to fill. If it takes 25 minutes to fill the drum, what is Flo’s flow rate? (Remember: flow = volume / time)

Flo’s Flow Woes Flo’s Flower shop has a frequently frustrating flow problem. Flo waters her greenhouse plants using a hose attached to a water tank on the roof. Unfortunately, Flo’s flow isn’t enough for her parched plants. 1. Flo first measures the flow she gets now by sticking the hose in a 50 gal drum and measuring how long it takes to fill. If it takes 25 minutes to fill the drum, what is Flo’s flow rate? (Remember: flow = volume / time) Flow = 50 gal / 25 min = 2 gal / min

Flo’s Flow Woes 1. What are TWO modifications of her watering equipment that Flo could make to double her flow?

Flo’s Flow Woes 1. What are TWO modifications of her watering equipment that Flo could make to double her flow? Flo could raise the tank (more PE so more KE) or use a larger hose (smaller resistance)

Flo’s Flow Woes Flo’s Flower shop has a frequently frustrating flow problem. Flo runs grow lights all night. Unfortunately, Flo’s electrical flow (her electrical current) isn’t enough for her gloomy gladiolas. 2. Flo first measures the flow she gets now by sticking a meter on her power line and measuring how long it takes to store up 50 coulombs of charge. If it takes 0.25 seconds, what is Flo’s current? (Remember: current = charge / time and is measured in amps.)

Flo’s Flow Woes Flo’s Flower shop has a frequently frustrating flow problem. Flo runs grow lights all night. Unfortunately, Flo’s electrical flow (her electrical current) isn’t enough for her gloomy gladiolas. 2. Flo first measures the flow she gets now by sticking a meter on her power line and measuring how long it takes to store up 50 coulombs of charge. If it takes 0.25 seconds, what is Flo’s current? (Remember: current = charge / time and is measured in amps.) Current = 50 coulombs / 0.25 sec = 200 amps

Flo’s Flow Woes 2. What are TWO modifications of her electrical equipment that Flo could make to double her flow?

Flo’s Flow Woes 2. What are TWO modifications of her electrical equipment that Flo could make to double her flow? Flo could increase the voltage (more PE so more KE) or use larger wires (smaller resistance)