Coding is fun

Exercise #1: How many LED lights are turned on?

• 5

• 7

• 9

• 11

Exercise #1: What is the colour of the LED lights?

• Blue

• White

• Cyan

• Orange

Exercise #1: How long does it take for the light to complete one "on and off" circle?

• 1 sec

• 1.5 sec

• 2 sec

• 3 sec

Exercise #2: What colour do you see?

• White

• Yellow

• Blue

• Magenta

Exercise #3: What do you see after running the code?

• All LED lights inside the button are flashing green light.

• The LED take turns to blink green light clockwise.

• The LED take turns to blink red light anti-clockwise.

• The LED take turns to blink blue light clockwise.

Exercise #3: At the end of each loop, what is the value of "led"?

• 1

• 5

• 7

• 11

Exercise #4: After running the code. Press button 2, then press button 4. What colour do you see?

• Yellow

• Blue

• White

• Magenta

Exercise #4: When the value of r is 250, after running the following code, what is the value of r?

{ r += 50;

if (r > 255) r = 0; }

• 0

• 50

• 250

• 300

Exercise #5: When you press button 4, and pointing the button 3 down towards the floor (as shown in the pic).

How many LED lights are on?

• 2

• 4

• 6

• 8