file management quizzes

docs/lessons/night-light/quiz-answers.md

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+# night light quiz answers
+
+Answers to the night light quiz. #LED #image #brightness #fade #docs
+
+This is the answer key for the [night light quiz](/microbit/lessons/night-light/quiz).
+
+## 1. Define the function "set brightness" 
+
+This function sets the brightness of the LED screen.
+
+## 2. Consider the following image
+
+![](/static/mb/lessons/night-light-0.png)
+
+If the rectangle above represents the BBC micro:bit, write the code to set all the LEDs to full brightness and to turn on all the LEDs.
+
+<br />
+
+```
+led.setBrightness(255)
+led.plotAll()
+```
+
+## 3. Consider the following image
+
+![](/static/mb/lessons/night-light-1.png)
+
+If the rectangle above represents the BBC micro:bit, write the code to set the screen brightness to 50% (128) and turns on all the LEDs.
+
+<br/>
+
+```
+led.setBrightness(128)
+led.plotAll()
+```
+
+## 4. Consider the following image
+
+![](/static/mb/lessons/night-light-2.png)
+
+If the rectangle above represents the BBC micro:bit, write the code to turn off all the LEDs.
+
+```
+led.setBrightness(0)
+```
+

docs/lessons/night-light/quiz.md

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+# night light quiz
+
+change the brightness of the BBC micro:bit #LED #image #brightness #fade #docs
+
+## Name
+
+## Directions
+
+Use this activity document to guide your work in the [night light tutorial](/microbit/lessons/night-light/tutorial)
+
+Answer the questions while completing the tutorial. Pay attention to the dialogues!
+
+## 1. Describe what "led->set brightness" does ? 
+
+## 2. If the picture below is the BBC micro:bit, write the code that sets all the LEDs to full brightness and turns on all the LEDs
+
+![](/static/mb/lessons/night-light-0.png)
+
+<br />
+
+## 3. If the picture below is the BBC micro:bit, write the code that sets the screen brightness to 50% (128) and turns on all the LEDs.
+
+![](/static/mb/lessons/night-light-1.png)
+
+<br/>
+
+## 4. If the picture below is the BBC micro:bit, write the code turns off all the LEDs.
+
+![](/static/mb/lessons/night-light-2.png)
+