pxt-calliope/olddocs/lessons/love-meter/quiz.md

# love meter blocks quiz 

Learn how to make a love meter that you can try with someone. 

## Name

## Directions

Use this activity document to guide your work in the [love meter activity](/lessons/love-meter/activity).

Answer the questions below while completing the activity. Pay attention to the dialogues!

## 1. Describe what `on pin pressed` does?


## 2. Create a condition for on pin pressed (P0).


## 3. Describe what this line of code does?

```blocks
let x = Math.random(9)
```



## 4. Describe what adding 1 to variable x does?

```blocks
let item = 0;
item = 0;
basic.showNumber(item + 1);
```



## 5. Describe why you must hold ground (GND) before pressing (P0) to run a program using `on pin pressed(P0)` on the micro:bit