54 lines
1.3 KiB
Markdown
54 lines
1.3 KiB
Markdown
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# glowing pendulum quiz answers
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construct a pendulum that glows using acceleration #LED #number #math #acceleration #docs
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## Name
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## Directions
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Use this activity document to guide your work in the [glowing pendulum tutorial](/microbit/lessons/glowing-pendulum/tutorial)
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Answer the questions while completing the tutorial. Pay attention to the dialogues!
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## 1. Why are you creating a 'forever' loop?
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<br/>
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We are creating a forever loop to constantly display the appropriate brightness on the LED display.
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## 2. Write the line of code to measure the acceleration with respect to the "y" axis and store this value in a local variable called 'acceleration'.
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<br/>
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```
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let acceleration = input.acceleration("y")
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```
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## 3. After storing the acceleration in a variable, write the code to take the absolute value of the acceleration, and store this value inside 'acceleration'.
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<br/>
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```
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acceleration = math.abs(acceleration)
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```
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## 4. Write the code that uses the acceleration value from question #3 to set the brightness on the BBC micro:bit.
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<br/>
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```
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acceleration = acceleration / 4
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led.setBrightness(acceleration)
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```
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## 5. Write the code that tuns all the LEDs on (as the image displays below)
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<br/>
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```
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led.plotAll()
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```
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