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Unit 3, Day 3. Physics. Do Now. Timed Reading. Before the bell rings: Get out a sheet of notebook paper and your notebook, and clear all other things off of your desk.
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Unit 3,Day 3 Physics
Do Now • Timed Reading. • Before the bell rings: Get out a sheet of notebook paper and your notebook, and clear all other things off of your desk. • After the bell rings. You have 6 minutes to read that passage. If you finish it before 6 minutes are up, read it again. You can take notes while you read.
Do Now • Pass those in.
Reading Check - You may use the notes in your notebook for these questions. • 1. A postal truck driver driving due east (positive) gently steps on her brake as she approaches an intersection to reduce the speed of the truck. What is the direction of the truck’s acceleration, if any? • a. West (negative) • b. East (positive) • c. North • d. She has no acceleration. • 2. Why? • 3. In which one of the following situations does the car have an acceleration that is directed due north? • a. A car travels north with a constant speed of 24 m/s. • b. A car is traveling south as its speed increases from 24 to 33 m/s. • c. A car is traveling north as its speed increases from 18 to 24 m/s. • 4. Why?
Objective • SWBAT describe the differences between the three models.
Green Cart Go Lab Goals • To differentiate between position-time, velocity-time, and acceleration-time graphs. • To differentiate between motion graphs for motion at different rates. • To create equations that model motion of a cart that is speeding up. • To linearize non-linear graphs in order to find the rate of change. • To compare linearized graphs of motion.
Stop and Think (and write) • How are position-time graphs, velocity-time graphs, and acceleration-time graphs related? (think columns) • How are the three models related for position-time graphs? • How are the three models related for velocity-time graphs?
How do they differ? Which object is ahead? Which object is faster?