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# zoomer blocks lesson
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measure the acceleration on the micro:bit in the "z" direction.
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## Topic
Acceleration
## Quick Links
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* [activity ](/lessons/zoomer/activity )
* [challenges ](/lessons/zoomer/challenges )
* [quiz ](/lessons/zoomer/quiz )
* [quiz answers ](/lessons/zoomer/quiz-answers )
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## Prior learning/place of lesson in scheme of work
Learn how to get the **acceleration** , `acceleration` in one of three specified dimensions. We will be learning how to get the acceleration using a forever loop, local variables, input on button pressed, as well as simple commands, such as show number and pause.
## Documentation
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```cards
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basic.forever(() => {
})
let x = 0
input.acceleration(Dimension.X)
if (true) {
}
input.buttonIsPressed(Button.A)
basic.showNumber(0)
```
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## Objectives
* learn how to repeat code in the background forever
* learn how to create a variable to store data
* learn how to get the acceleration value (g-force), in one of three specified dimensions
* learn how to pause your code for the specified number of milliseconds
* learn how to conditionally run code depending on whether a condition is true or not
* learn how to get the state of an input button
* learn how to show a number on the LED screen
