1. Bell Work, Feb 2 – 5, 2016 IB Physics: ACT Prep, Constant Velocity Position, motion, displacement, distance, speed,

2. ACT Prep, Bell Work Monday, Feb 1 1. Explain the ACT guessing strategy. Answer all questions even if you are guessing. Do this: Position:1234 ABCDABCD FGHJFGHJ If you have no idea which is the correct answer or you are out of time, choose one of these “positions” (like B & G, or D & J) and always use those letter pairs for your guess answers. If you can use process of elimination to “cross out” one of the four answers, you making an educated guess. In this case, go with your best hunch, or use the first answer that you did not eliminate. Example: You know F & J are wrong but unsure about G & H FGHJFGHJ Your answer is G because it is the first answer not crossed off.

3. ACT Prep, Bell Work Tuesday, Feb 2 1. How will the guessing strategy improve your ACT score? If you know the correct answer for half of the questions and you guess using just one pair of letters on the remaining half, your score will probably be a 22 – 23. This is called the letters of the day strategy. If you answers 16 - 17 questions correct (40% - 43%) and guess using the letter of the day strategy, you should score a 20, If you know the correct answer for half of the questions and you make educated guesses on the remaining half, narrowing the choices to two, your score will be 25 - 27. This is called the educated guessing strategy.

4. ACT Prep, Bell Work Tuesday, Feb 2 2. Pace Yourself for a score of 28 40 Questions answered 35 Minutes Allow 1.5 min to read the passages, data tables & graphs. (7 X 1.5 =11 min) Allow 30 sec to answer each question (40 X 0.5=20 min) Three minutes to bubble your answers. Check your work if you have any extra time.

5. ACT Prep, Bell Work Tuesday, Feb 2 2. Pace yourself for a score of 24 30 Questions answered 35 Minutes Allow 1.5 min to skim the passages, data tables & graphs. (6 X 1.5 min = 9 min) Allow 45 sec to answer each question (30 questions X 0.75 min=23 min) This is 50% more time to answer questions Three minutes to bubble your answers. You skipped one full passage with its seven questions and you skipped 3 complicated questions. You skipped 10 questions

6. ACT Prep, Bell Work Tuesday, Feb 2 2. Pace yourself for a score of 20 25 Questions answered 35 Minutes Allow 2 min to read the passages, data tables & graphs. (5 X 2 min = 10 min) Allow 52 sec to answer each question (25 questions X 0.88 min=23 min) This is 75% more time to answer questions Three minutes to bubble your answers. You skipped two full passage with its 12 – 14 questions and you skipped some hard questions. You skipped 15 questions

7. IB Physics Bell Work, Wednesday, Feb 3 1. What variables will we use to determine the motion of the toy car? 2. What is the reference point for position? 3. What is a time interval? It is the amount of time between two clock events. The time interval is found by the final time subtract initial time. 4. What is a position interval? We will use the letter x to represent horizontal position. Position interval is the change in position found by the final position minus initial position. 5. How are all changes calculated in IB Physics All changes are final value minus initial value. Time & position from zero. Zero.

8. ACT Prep, Bell Work Thursday, Feb 4 What are the three types of passages on the ACT Science test? 1.Data Representations/ Charts & Graphs – presents students with graphs, diagrams, and data tables. No sub-headings in the passage. These questions are usually the easiest. 2.Research Summaries/ Experiments – provides students with descriptions of one or more experiments. Passage usually has sub-headings which say Experiment 1 & Experiment 2 or Study 1 & Study 2. 3.Conflicting Viewpoints – presents students with hypotheses, models, or scientists views that are inconsistent with one another. 1 passage; usually has sub-headings which say Scientist 1 & Scientist 2 or Student 1 & Student 2. These questions are usually the hardest.

9. IB Physics Bell Work, Thursday, Feb 4 4.What is motion? Motion is a change in position. 5. Explain position It is the distance and direction from a reference point. Position is measurable. The reference point can be a measurement. 6. What is magnitude? Magnitude is the size of a number or numerical value in relation to the a reference point (how far an object is from the reference point. In this class, magnitude is always a positive number.

11. Physics Bell Work, Wednesday, Feb 3 1. What variables will we use to determine the motion of the toy car? 2. What is the reference point for position? 3. What is a time interval? It is the amount of time between two clock events. The time interval is found by the final time subtract initial time. 4. What is a position interval? We will use the letter x to represent horizontal position. Position interval is the change in position found by the final position minus initial position. 5. How are all changes calculated in IB Physics All changes are final value minus initial value. Time & position from zero. Zero.

12. IB Physics Bell Work, Wednesday, Feb 3 1. What variables will we use to determine the motion of the toy car? 2. What is the reference point for position? How can we model the motion of the toy car with a graph? Motion can be modeled by plotting time on the x axis & x-position (or “x”) on the y axis. This is called a position - time graph. 3. What is a time interval? It is the amount of time between two clock events. The time interval is found by the final time subtract initial time. 4. What is a position interval? Position interval is the change in position found by the final position subtract initial position. 5. How are all changes calculated in IB Physics All changes are final value minus initial value. Time & position from zero. Zero.

13. IB Physics Bell Work, Monday, Jan 25 1.What is motion? Motion is a change in position. 2. Explain position It is the distance and direction from a reference point. Position is measurable. The reference point can be a measurement. 3. What is the significance of defining a coordinate system to study the motion of an object? A coordinate system tells about the location of the zero point of the variables defining the motion of the object to be studied. The coordinate system also explains the direction in which the values of the variables increase or decrease.

14. IB Physics Bell Work, Monday, Jan 26 1.What is motion? Motion is a change in position. 2. Explain position It is the distance and direction from a reference point. Position is measurable. The reference point can be a measurement. 3. What is the significance of defining a coordinate system to study the motion of an object? A coordinate system tells about the location of the zero point of the variables defining the motion of the object to be studied. The coordinate system also explains the direction in which the values of the variables increase or decrease.

15. IB Physics Bell Work, Tues, Jan 27 1. What variables did we use to determine the motion of the toy car? 2. What was the reference point for position? How can we model the motion of the toy car with a graph? Motion can be modeled by plotting time on the x axis & x-position (or “x”) on the y axis. This is called a position - time graph. 3. What is a time interval? It is the amount of time between two clock events. The time interval is found by the final time subtract initial time. 4. What is a position interval? Position interval is the change in position found by the final position subtract initial position. 5. How are all changes calculated in IB Physics All changes are final value minus initial value. Time & position from zero. Zero.

17. IB Physics Bell Work, Weds, Jan 28

18. IB Physics Bell Work, Thursday, Jan 29 1. Describe the motion a.Position is not changing at CV. b.Moving away from detector CV. c.Moving towards the detector at CV CV = constant velocity 2. Draw the velocity on the velocity time graph. 3. Draw a motion map for 5 seconds. a b c 0

19. IB Physics Exit Work, Thur, Jan 29

20. 1.Write a mathematical model for the position from zero of your toy car. 2. Slope is a rate of change per an interval. Explain what is changing and what the interval is on your graph? 3. For each time interval what is changing in question # 2? 4. What physical quantity or physical property is represented by slope of your time-position graph? 5. Is the slope on your graph changing or is it constant?

22. IB Physics Bell Work, Monday, Jan 25 1.What is motion? Motion is a change in position. 2. Explain position It is the distance and direction from a reference point. Position is measurable. The reference point can be a measurement. 3. What is the significance of defining a coordinate system to study the motion of an object? A coordinate system tells about the location of the zero point of the variables defining the motion of the object to be studied. The coordinate system also explains the direction in which the values of the variables increase or decrease.

23. IB Physics Exit Work, Tues, Jan 27 1.Write a mathematical model for the motion of your toy car. 2. Slope is a rate of change. Explain what is changing? 3. For each time interval what is changing in question # 2? 4. What physical quantity or physical property is represented by slope of your time-position graph? 5. Is the slope on your graph changing or is it constant?

24. Mass (kg)

25. Whiteboards- Spaghetti Lab RedProblem 1,2 BlueQuestion 3, 4 PinkQuestion 5, 6 OrangeQuestion 9, 10 GreenQuestion 5, 6 WhiteQuestion 7,8 YellowQuestion 9, 10 BrownQuestion 7,8 GreyQuestion 1,2 PurpleQuestion 3,4