1. What happened to the sheet when the egg struck it? (The sheet moved backward.)
2. What happened to the kinetic energy of the moving egg as it struck the sheet? (Most was transformed into the movement of the sheet.)
3. Why did the sheet move only a small distance? (The sheet had a large mass so when the egg struck it, the energy dissipated over the mass of the entire sheet.)
Color My World
Obtain several sheets of colored transparent plastic. Observe your surroundings while looking through these colored filters. Suppose you looked at an object the same color as the filter? What color would the object appear? Make a guess. Then try it and find out. Can you explain your observations based on the behavior of transmitted and reflected colors?
Although it is fun, bike riding can be hazardous to your health – especially if you don’t wear a protective helmet. Create a poster that communicates this safety message to your classmates. Are there other ways to reach this audience? How might you best convince everyone to wear helmets while biking?
Do you think you can change society’s view of contact sports? If so, how? Suppose you wanted to inform the general public about the dangers of concussions. What challenges might you face? What strategy or approach would you use?