1. Describe in your own words what friction is. 2. Describe how friction affected the results of your investigation.
3. Does an object travel farther on a smooth or slippery surface or on a rough surface? Why?
4. Propose another experiment that could be used to demonstrate that friction is a contact force.
10 points, please hurry.

Answer

There is much more friction on the rough surface that there is on the smooth surface.

why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.