STEM Year 9

How many channels are there in a remote control?

• 8

• 9

• 6

• 10

What is this?

• A mainboard

• A circuit board

• A STEM board

• Robot brain

If you want to make your robot go forward 3 seconds and then go backward 3 seconds, which mode do

you need to use?

• 5

• 2

• 3

• 1

What is this block called?

What does 'IR' in an IR sensor stand for?

• Intrared

• Interred

• Infrared

• Innerred

How many modes are there in STEM mainboard?

• 7

• 8

• 9

• 10

What is 'Mode 2'?

Which one is Block 511?

• 
• 
• 

Which mode do you need to use in order to make a robot follow something?

• 3

• 4

• 5

• 6

If a driver gear has 10 teeth and a driven gear has 20 teeth, what will be the gear ratio?

• 2

• 1/2

• 1

• 0.5