1. Bell-ringer: 4 minutes Which of the following is NOT a force? a. Speed b. Gravity c. Friction d. Magnetism Copy CCSS/Objectives/HW

2. Mantra - Your Turn! Today is a great day for science because: science is power. We are powerful because: We always make a difference.

3. Agenda 1. Class Cup Winners Prize! 2. Connections Friday Volunteers 3. Finish Intro. To Physics /Forces and Main Ideas 4. Simple Machines 5. Homework 6. Summary/ Questions 7. Feedback Friday

4. Simple Machine Chart Anything that helps make life easier Machine nameRole (What it does) Where it's found Examples 1. PULLEY 2. WHEEL & AXLE 3. INCLINE PLANE 4. LEVER 5. WEDGE 6. SCREW

5. Pulley – Answer! Update your charts!

6. Pulley – Answer! Update your charts! A pulley is a wheel on an axle or shaft that is designed to support movement and change of direction of a cable or belt along its circumference. Pulleys are used in a variety of ways to lift loads, apply forces, and to transmit power.

7. Pulley – Answer! Update your charts!

8. Wheel & Axle – Answer! Update your charts!

9. Wheel & Axle – Answer! Update your charts! The wheel and axle is generally considered to be a wheel attached to an axle so that these two parts rotate together in which a force is transferred from one to the other. The mechanical advantage of a wheel and axle is the ratio of the radius of the wheel to the radius of the axle

10. Wheel & Axle – Answer! Update your charts!

11. Incline Plane– Answer! Update your charts!

12. Incline Plane– Answer! Update your charts! An inclined plane, also known as a ramp, is a flat supporting surface tilted at an angle, with one end higher than the other, used as an aid for raising or lowering a load.

13. Incline Plane– Answer! Update your charts!

14. Lever– Answer! Update your charts!

15. Lever– Answer! Update your charts! A rigid bar resting on a pivot, used to help move a heavy or firmly fixed load with one end when pressure is applied to the other.

16. Lever– Answer! Update your charts!

17. Wedge– Answer! Update your charts!

18. Wedge– Answer! Update your charts! A piece of wood, metal, or some other material having one thick end and tapering to a thin edge, that is driven between two objects or parts of an object to secure or separate them.

19. Wedge– Answer! Update your charts!

20. Screw– Answer! Update your charts!

21. Screw– Answer! Update your charts! A short, slender, sharp-pointed metal pin with a raised helical thread running around it and a slotted head, used to join things together by being rotated so that it pierces wood or other material and is held tightly in place.

22. Screw– Answer! Update your charts!

23. Practice!

24. Simple Machine Chart Fill in last column on your own Machine nameRole (What it does) Where it's found Examples 1. PULLEY 2. WHEEL & AXLE 3. INCLINE PLANE 4. LEVER 5. WEDGE 6. SCREW

25. Last Items/ Questions HW: Reflection Due Monday Write and decorate your first reflections about Science and what it means to you. Minimum of 7 complete sentences and 2-3 pieces of evidence. Think about your progress and effort in Units 1 & 2 for Reflection/Celebration once grades are back

26. Crossword Options Crossword to understand vocabulary, predict when each simple machine would be most appropriate to use, and apply by figuring out why the machines work