7 August Warmup

Answer these questions about shadows. Use this link to help you:


Hint: A penumbra is the fuzzy part of a shadow...

1. What type of light source creates a soft-edged penumbra?
2. What type of light source created a hard-edged umbra?
3. Imagine you are looking down at your feet and you see two shadows. How is this possible?
4. If a light source is moved closer to an object the shadow gets _____.
5. If a light source is moved father from an object, the shadow gets _____.