CMU CS Academy Unit 6.3 Motion

What is c.dx and c.dy?

c = Circle(50, 150, 20, fill='navy')

c.dx = 5

c.dy = 6

• properties

• custom properties

• methods

What is the default value of app.stepsPerSecond?

onStep is a function that is called app.stepsPerSecond number of times per second.

• 1

• 5

• 30

• 90

Which code represents motions that are horizontal?

c = Circle(50, 150, 20, fill='navy')

c.dx = 5

c.dy = 6

• c.centerX += c.dx

• c.centerY += c.dy

• c.centerX += c.dx

  c.centerY += c.dy

Which code represents motions that are horizontal?

c = Circle(50, 150, 20, fill='navy')

c.dx = 5

c.dy = 6

• c.top += c.dy

• c.bottom += c.dy

• c.right += c.dx

• c.left+= c.dx

Which code represents motions that are vertical?

c = Circle(50, 150, 20, fill='navy')

c.dx = 5

c.dy = 6

• c.top += c.dy

• c.bottom += c.dy

• c.right += c.dx

• c.left+= c.dx

Which code represents motions that are moving down?

c = Circle(50, 150, 20, fill='navy')

c.dx = 5

c.dy = 6

• c.top += c.dy

• c.bottom += c.dy

• c.right += c.dx

• c.left+= c.dx

Which code represents motions that are moving right?

c = Circle(50, 150, 20, fill='navy')

c.dx = 5

c.dy = 6

• c.top += c.dy

• c.bottom += c.dy

• c.right += c.dx

• c.left+= c.dx

Which code represents motions that are diagonal?

c = Circle(50, 150, 20, fill='navy')

c.dx = 5

c.dy = 6

• c.centerX += c.dx

• c.centerY += c.dy

• c.centerX += c.dx

  c.centerY += c.dy