3.1 And then there was light

Watch video 4.1 - And then there was light, and then fill out the worksheet answers below.

1

Explain in your own words how “light” is made. This should include a discussion of what electrons are "doing" when light is produced. 

2

Explain in your own words what your eye sees when you see someone wearing a red shirt.

3

Explain in your own words what your eye sees when you see someone wearing a black shirt.

4

Explain in your own words what your eye sees when you see someone wearing a white shirt.

5

When a television news anchor in a studio speaks to a reporter in a distant country, there is sometimes a noticeable lag between when the anchor speaks in the studio and when the remote reporter hears it and replies. Explain what causes this delay.