Chapter 4: Linear Motion Part 1 (4.5-4.9)
SC.912.P.12.2
Analyze the motion of an object in terms of its position, velocity, and acceleration (with respect to a frame of reference) as functions of time.
Bellwork: Preview Video HERE
In class reading of 4.5 - 4.9
- Define the following Key Terms: elapsed time, free fall
- Explain what is meant by the variable "g" in physics. What is its value?
- If an object at rest is dropped from the top of a cliff, how fast will it be going at the end of 1 s? At the end of 2 s? 10 s?
- Express the instantaneous speed, v, of an object falling from rest after an elapsed time, t, in equation form.
- Draw the path of an object being thrown upwards. Label where the object is at its peak, and state the velocity of the object at that point.
- Using the same drawing, state the acceleration the object experiences throughout its flight.
- During the span of the second time interval in Table 4.2, the object begins at 10 m/s and ends at 20 m/s. What is the average speed of the object during this 1 second time interval? What is its acceleration?
- Express the distance, d, a freely falling object has fallen from rest in equation form.
- How far will a freely falling object that is released from rest fall in 2 s? In 10 s? In .5 s?
- An apple drops from a tree and hits the ground in 1 s. What is its speed upon striking the ground? What is its average speed during the 1 s? How high above the ground was the apple when first dropped?
In class activity: Comparing Reaction Times
