pg. 550-555 ? 1-6

1. The turn creates friction between the wheels and the ground when the wheels are rolling and turning.
2. Static friction is between the atoms on two surface that are in contact.
3. Friction adds resistance between two touching surfaces therefor it made discovering newton's first law of motion complicated.
4. No its not moving because the net force is zero.
5. A) unbalanced B) balanced C) unbalanced
6. Static friction is caused by atoms on the two surfaces are in contact this causes them to stick or weld together. Sliding friction slows down an object that slides. Rolling friction occurs between the ground and part of the tire touching the ground. this keeps the tire from slipping on the ground.

• BONUS QUESTION--How does a space shuttle taking off relate to Newton's 1st law? It starts with zero for speed and gains speed going in a straight line therefore relating to Newton's 1st law.