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The Workshop consists of quiz questions and answers to help you solidify your understanding of the material covered. Try to answer the questions before checking the answers.


1:When we stretched the circle using the vertical scale, why did we also compress the horizontal scale?
  1. You can't scale a symbol in just one dimension.

  2. We thought it would look cool.

  3. In real life, compressing a ball in one dimension will cause it to expand in the other direction—the total volume of the ball never changes.

A1: C. Although it may not be noticeable if you forgo this touch, you might be surprised when you can't figure out why something just doesn't look right. Take a rubber ball and push it on the ground. You'll see it get wider as you reduce its height.
2:Why did we add extra reverberation to the circle during the overkill exercise (“Overkill to Make an Animation More Effective”)?
  1. We thought it would look cool.

  2. Real balls always exhibit this behavior.

  3. We wanted the ball to act as the user expects.

A2: C. Certainly we shouldn't do something just to make it look cool. A real ball might not settle in such a dramatic way, but the user understands the message, and it looks realistic.
3:Is it dishonest to use just a few keyframes instead of a long tween?
  1. Yes, it's not accurately demonstrating the physical movement we're animating and may open you to lawsuits.

  2. Maybe. But if the effect is more believable, we've succeeded.

  3. No, in real life motion involves only two key points: the beginning and the end.

A3: B. We're not here to show physical principles accurately, rather to communicate ideas. Remember— it's the result, not how we got to it.



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