1 / 13

Science Starter!

Science Starter! Perform the following conversions and dimensional analysis problems. Reflect your answer in scientific notation. 30 in  mm 12 cm  mi 50 mi/hr  m/s 25 ft /s  cm/ hr. Graphing Basics. Parts of a Graph. “Best Fit” Line.

alden-wynn
Download Presentation

Science Starter!

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Science Starter! Perform the following conversions and dimensional analysis problems. Reflect your answer in scientific notation. 30 in  mm 12 cm  mi 50 mi/hr  m/s 25 ft/s  cm/hr

  2. Graphing Basics

  3. Parts of a Graph “Best Fit” Line Variable that is measured during an experiment (y - axis) Variable that is controlled in an experiment (x - axis)

  4. Distinguishing Variables Example: I worked for 5 hours and made $50. Independent: What did YOU directly control (do)? 5 hours Dependent: What happened because of your action (measure)? made $50 EXCEPTION: TIME is always considered an independent variable, even though it may be the quantity measured.

  5. Types of Relationships LINEAR - Straight line - Equation: y = mx + b - Direct Relationship Slope [Steepness of line] = (Y2 – Y1) or RISE (X2 – X1) RUN

  6. Graphing Data Data Chart - Determine the independent and dependent variables Plot Data - Place a dot at the intersection of the two variables

  7. Calculating Slope • Choose any two points on the line of best fit: • (not data points)EX: ( y = 15, x = 30) and ( y = 0, x = 0) • Calculate slope by dividing the difference in the “y” values by the difference in the “x” values: • EX: Slope = (15 – 0) • (30 – 0) • Slope = 0.5

  8. Enclosed Area • Shade in the region in question: • EX: Find the area enclosed by the line of best fit and the horizontal axis between x = 0 and x = 30. • Use geometry and the values on the axis (NOT number of blocks) to find the area of the shape made. • EX: A = ½ bh • = ½ (30)(15) = 225

  9. Non-Linear Graphs

  10. Area = ½ bh = ( ½ )(6)(14.5) = 43.5

More Related