2. Use the formula v = d/t to solve problems that involve distance, time, and speed.
3. Distinguish between scalar and vector quantities and give several examples of each.
4. Define acceleration and find the acceleration of an object whose speed is changing.
5. Explain what is meant by the acceleration of gravity.
6. Describe the effect of air resistance on falling objects.
7. Define force and indicate its relationship to the first law of motion.
8. Discuss the significance of the second law of motion, F = ma.
9. Distinguish between mass and weight and be able to find the weight of an object of given mass.
10. Use the third law of motion to relate action and reaction forces.
11. Explain the significance of centripetal force in motion along a curved path.
12. Relate the centripetal force on an object moving in a circle to its mass, speed, and the radius of the circle.
13. State Newton's law of gravity and describe how gravitational forces vary with distance.
14. Account for the ability of a satellite to orbit the earth without either falling to the ground or flying off into space.
15. Define escape speed.