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Lesson 11 Quiz: Drawing with Turtle: Shapes, Colors, and Loops You Can See

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1. What does `import turtle` do, and why is it needed?

A. It draws a turtle on the screen at once. B. It saves your drawing to a file. C. It makes the turtle move forward 100 steps. D. It loads the Turtle tool; without it Python does not know what `turtle` means.

2. What do `t.forward(100)` and `t.right(90)` do?

A. Move forward 100 steps; turn right 90 degrees. B. Turn right 100 degrees; move forward 90 steps. C. Move backward 100 steps; turn left 90 degrees. D. Draw a circle of 100 steps; turn right 90 times.

3. Why is the loop version of the square better than writing all eight lines out?

A. Because the loop draws the square faster than the turtle can move. B. It says the two moves once and repeats them four times, instead of retyping them. C. Because the loop version needs no `import turtle` line. D. Because eight lines would draw an octagon instead of a square.

4. What do `penup()` and `pendown()` do?

A. `penup()` erases the drawing; `pendown()` starts a new drawing. B. `penup()` stops the program; `pendown()` restarts it. C. `penup()` lifts the pen so movement draws nothing; `pendown()` puts it back down to draw again. D. `penup()` draws a line upward; `pendown()` draws a line downward.

5. What does `turtle.done()` do, and what happens without it?

A. It saves the drawing to a file; without it the drawing is lost. B. It keeps the drawing window open; without it the window may close at once. C. It closes the drawing window; without it the window stays open forever. D. It starts the turtle moving; without it the turtle never moves.

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