Unit 3 Post-Project Assessment

You want to create a variable to store how loud the music is playing on your cell phone. Which of the following would be the best variable name?

• a

• volume

• loudest

• 100

• silent

The program below attempts to draw a crab with a blue background. What change needs to be made so that it works correctly?

• Move background("blue"); to the end of the program

• Move drawSprites(); to the end of the program

• Rename the variable sprite to crab

• Remove the line of code background("blue");

• No change, the program already works

The program below attempts to draw a blue rectangle but does not work as intended. What change needs to be made for the blue rectangle to be drawn?

• drawRect; should be at the end of the program

• fill("blue"); should be moved outside of the function and after drawRect;

• fill("blue"); should be moved outside of the function and before drawRect;

• drawRect; should be drawRect();

• rect(0, 300, 200, 50); should be rect(0, 300);

Given the functions below, write a program that will draw the scene on the right.

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The program below draws the scene on the right, but you want the rectangle to be further to the right. How can you change the code to achieve this?

• Call .moveRight()

• Add a line of code to change rect.x = 100;

• Update the first argument (parameter) of rect( ) to 100

• No change needed: the rectangle is animated to move right

Describe what will happen in the following program:

• When the right mouse button is pressed, the sprite moves to the right. When the left arrow key is pressed, it rotates.

• When the left mouse button is pressed, the sprite rotates. When the right arrow key is pressed, it moves to the right.

• When both the left mouse button and right arrow key are pressed, the sprite rotates and moves to the right.

• When the left mouse button is pressed, the sprite rotates. When the right arrow key is pressed, it moves to the right. When the left arrow key is pressed, it moves to the left.

Which of the following programs correctly draws a rectangle at a random x position? (Select two)

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Which program will draw this image?

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You need to update the code below to animate the fish to move from the right side of the screen to the left side of the screen. In the draw loop, what line of code do you need to add before drawSprites()?

• orangeFish.moveLeft();

• orangeFish.move = "left";

• orangeFish.x = orangeFish.x - 2;

• orangeFish.x = orangeFish.x + 2;

• No change, the program already animates the fish to move left

Your friend has added code to simulate gravity. Which new line of code are you most likely to see in their program?

• monkey.displace(rabbit);

• elephant.collide(hippo);

• giraffe.bounce(parrot);

• rock.velocityY = rock.velocityY + 0.2;

• snake.bounceOff(pig);