Understanding Scratch Coordinate System

This video tutorial introduces the concept of the coordinate system in Scratch, explaining how it helps in positioning sprites on the stage. It covers the use of the XY grid backdrop, the significance of X and Y positions, and the number lines. The tutorial also explains the concept of pixels and how they relate to sprite movement, providing a practical example of moving a sprite across the stage.

What is the primary purpose of understanding the coordinate system in Scratch?

• To position sprites accurately on the stage

• To add sound effects to projects

• To create colorful backdrops

• To change the color of sprites

In the coordinate system, what does the point (0, 0) represent?

• The bottom right corner of the stage

• The top left corner of the stage

• The top right corner of the stage

• The center of the stage

What is the range of the x-coordinate on the Scratch stage?

• -360 to 360

• -480 to 480

• -180 to 180

• -240 to 240

What color is the x number line in the Scratch editor?

• Red

• Blue

• Green

• Orange

How many pixels wide is the Scratch stage?

• 360 pixels

• 480 pixels

• 180 pixels

• 240 pixels

What is a pixel in the context of digital images?

• A color palette

• A large square

• The smallest component of a digital image

• A type of sprite

In Scratch, how many steps does a sprite need to move to cross the entire stage horizontally?

• 480 steps

• 240 steps

• 360 steps

• 180 steps

What does one step equal in Scratch?

• One pixel

• Ten pixels

• Five pixels

• Two pixels

If a sprite is at the leftmost position on the x number line, what is its x-coordinate?

• -180

• -240

• 240

• 0

What happens to the x-coordinate of a sprite as it moves from left to right on the stage?

• It increases

• It decreases

• It becomes negative

• It remains the same