Review 14.1 worksheet; do Presentation notes; Do Inquiry Activity

End of Q3 Thursday!

Missing work or need retakes/redos:

Period 3
Arthur           Kenny     Tiarra          Ana
Jackaleen     Shan       Tristan        Ivan
Gabe            Thin         Iven
DaMare         Marisol    Bre'antay

Period 4
Favian         Kevin          Dino
Dajsha         MiMi           Daniel
Roy             Francisco    Saul

Continue Chapter 14: Work, Power, & Machines 4/5/16 (right side)

Check for completion of 14.1 Work and Power worksheet and glue into notebook, review answers.

Notes from Presentation 

How Do Ramps Help You Raise Objects? Inquiry Activity
Procedure
1. Make a stack of five books.
2. Make a ramp by leaning a short board against the top of the book stack. Place a sixth book against the bottom edge of the board to keep the ramp from moving.
3. Measure the height and length of the ramp.
4. Use a spring scale to pull an object up the ramp at a constant speed. Record the force indicated on the spring scale.
5. Repeat Steps 2-4 using a longer board.

Everyone will use a half sheet of paper to answer the following questions. This is your exit slip for today.
Think About It
1. Which ramp required a greater force to pull the object?
2. How do you think the force needed to pull the object would change if the cart accelerated up the length of the ramp?
3. Explain why a box that is too heavy to lift can often be pushed up a ramp.