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DO NOW 9/8 What type of investigation requires a hypothesis? What type of variable is changed by the scientist?

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Presentation on theme: "DO NOW 9/8 What type of investigation requires a hypothesis? What type of variable is changed by the scientist?"— Presentation transcript:

1 DO NOW 9/8 What type of investigation requires a hypothesis? What type of variable is changed by the scientist?

2 ESSENTIAL QUESTION: What is work and how is it related to force? OBJECTIVES: -Review Force and Unbalanced Forces -Introduce work and examples of work.

3 Work and Force Pair Share: What is work? Brainpop: Work Pair Share: Now, how would you describe work?

4 NEW UNIT On page 13, create a title page for: UNIT 2: WORK AND FORCE Work = Force X Distance

5 Partner Read 146-147 Expectations for Partner Read: Voice Level 1 Partner closest to screen starts first Each partner is responsible for Reading After Reading: Complete the Frayer Models for Work and Force and tape to page 14 in your notebook.

6 NASA Work/Force Video http://www.youtube.com/watch?v=iCqm5uxc 2dE http://www.youtube.com/watch?v=iCqm5uxc 2dE

7 FORCE Add this definition to your Frayer model on page __ FORCE: a push or pull upon an object measured in Newtons. Complete a drawing, example, and description in your own words for FORCE and for WORK.

8 Work and Human Body Lab A: Materials Manager B: Recorder C: Time Keeper D: Lab Director VOICE LEVEL: 2 Follow instructions on your lab sheet

9 Doing WORK? Lift the book at your table straight out in front of you. -Could you feel your muscles working? -Did you use force to get the books straight out in front of you? Did you use force to keep them there? -Did you do work to get them out in front of you? Did you do work to keep them there? Explain? REMEMBER: Work is done on an object when an applied force moves it through a distance in the direction of the force.

10 Let’s Review ESSENTIAL QUESTION: What is work and how is it related to force? OBJECTIVES: -Model work being done and not being done. -Calculate WORK.

11 EXIT SLIP Quick Write ( page ____ of your INB) Create a scenario where WORK is being done, and create a scenario where WORK is not being done, but a force is being applied

12 DO NOW Date: 9/9/14 Describe the scientific definition of WORK in your own words.

13 ESSENTIAL QUESTION: How do simple machines affect force when doing work? OBJECTIVES: -Students will investigate the effects of inclined planes on force and work.

14 Review: Calculating Work Work with your table partners and complete the word problems. YOU MUST include units of measurement. Force-NEWTONS (N) Distance-METERS (m) Work- JOULES (J) Show your work

15 Inclined Planes Brain Pop- Inclined Plane

16 Reading: Inclined Planes Class Set…do not write on it Follow along. You may be asked to read!

17 Inclined Plane Notes Draw an Inclined Plane in your notebook on page 18 and label it. Also, explain what it does: Reduces (makes smaller) the amount of force needed to lift an object by increasing the distance needed to move it.

18 Triple Beam Balance Video How to use a triple beam balance

19 Situations of Work and Force Lab A:Materials Manager (Trays) B: Materials Manager (Balance and Ramps) C: Lab Director D: Data Recorder VOICE LEVEL: 2 Do NOT touch or play with materials when they are not in use

20 Lab Set Up Materials Manager A: Get a tray from the counter with rocks, spring scale, baggies, and calculator Materials Manager B: Pick Up a triple bea balance and a ramp Groups: Measure 100 grams of rocks in each of your 3 baggies. **Do NOT touch materials you are not using

21 Inclined Plane Lab Part one Do not use the ramp. Simply follow the instructions and record your data Part two Use the ramp. Follow instructions and record the data

22 Exit Ticket: Quick Write TOP TEN: Explain to the movers why using a ramp to help them load the truck will help get the job done. You can use your TOP TEN to complete 1, 3, or 9. INCLUDE THE FOLLOWING WORDS: Inclined plane, work, force, direction

23 Let’s Review ESSENTIAL QUESTION: How do simple machines affect force when doing work? OBJECTIVES: -Students will investigate the effects of inclined planes on force and work.

24 DO NOW Date: 9/10 & 11 Q: How do simple machines affect force when doing work? Look at the picture, if you wanted to get the object into the back of the truck, what tool could you use to reduce the amount of force needed?

25 ESSENTIAL QUESTION: What is the relationship between work and force? OBJECTIVES: -Grade Homework -Quiz on Lab Safety, Scientific Investigations, and Work and Force -Correct Quiz

26 Quiz Voice Level 0 Turn your quiz over when you are finished


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