# flashing heart blocks quiz

Learn how to create a blinking image with a variable. 

## Name

## Directions

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

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

## 1. Describe what `pause` does?



## 2. Write the code that leaves an image on the screen for 1 second (1000 milliseconds) 




## 3. Write the code that leaves an image on the screen for 1.5 seconds (1500 milliseconds)