1. Chapter 2.2 Objectives and Vocabulary acceleration deceleration Newton's second law Define and calculate acceleration. Explain the relationship between force, mass, and acceleration. Determine mass, acceleration and force given two of the quantities.

2. Chapter 2.3 Objectives and Vocabulary free fall acceleration due to gravity velocity weight air resistance terminal speed Describe the motion of an object in free fall. Calculate the speed and distance for an object in free fall. Distinguish between mass and weight. Explain how air resistance affects the motion of objects.

3. An object is in free fall if it is accelerating due to the force of gravity and no other forces are acting on it.

7.  Falling objects increase their speed by 9.8 m/s every second, or 9.8 m/s 2  The letter “g” is used for acceleration due to gravity.

10. Chapter 2.4 Objectives and Vocabulary slope Describe motion with position versus time and speed versus time graphs. Use a position versus time graph to calculate speed from the slope. Use a speed versus time graph to calculate acceleration and distance traveled.