1. Date: Dec 15, 2014 Page: Table of Contents p. 1. W. O. D: Last 5 pages
Date: Dec 15, 2014 Page: Table of Contents p. 1 W.O.D: Last 5 pages Warm-ups: Front Cover
W.O.D. Motion - Object changes position over time, relative to a reference point.
Question: Choose a reference point in the room. Describe your seat in the room relative to that reference point. (For example: Ms Johnson’s desk is 2 meters northeast of the door.)

2. Today’s plan Warm- up Organize Speed notes
Distance/Time graphing - together
Finish questions from “Read about Speed” Physical Science text book. p
Finish ladder questions
Reflect

3. Table of Contents p. 1 Rube Goldberg Machine Drawing p. 2
SI units/Webquest p. 3
Metric Lab p. 4
Text reading on Speed p. 5
Metric Ladder p. 6
Metric Ladder questions p. 7
Speed notes/d/t Graph p. 8

4. Table of Contents p. 1

5. Speed = Distance/Time
v = d/t (We’ll use velocity and speed interchangibly for now)
We will use m/s (meters/second) for our answers.

6. Speed = Distance/Time
v = d/t (We’ll use velocity and speed interchangibly for now)
What is your average speed if you take 0.5 hours to jog 4000 m?
Set up the formula. Extend:Convert your calucations to answer in m/s.

7. Practice problem: Remember, v = d/t
Physicists uses the SI units m/s (meters/second) to measure speed.
If you walk at 2 meters per second (m/s), how far do you walk in 12 seconds?

8. If the average speed of a car is 110km/h, how long will it take the car to travel 715 km/h?

9. Speed Reading SNB p. 5
Complete reading in Physical Science text book. p
Do reading checks as you read (label as reading check #1, reading check #2, etc).
Complete questions 1-7 from page 123
Extend: Go to p Do ?’s 6, 10, 11, 14, 17, 18, 19,

10. How many jumps does it take?
Ladder Method 1 2 3
KILO 1000 Units
HECTO 100 Units
DEKA 10 Units
DECI 0.1 Unit
Meters Liters Grams
CENTI 0.01 Unit
MILLI Unit
How do you use the “ladder” method?
1st – Determine your starting point.
2nd – Count the “jumps” to your ending point.
3rd – Move the decimal the same number of jumps in the same direction.
4 km = _________ m
Starting Point
Ending Point
How many jumps does it take? 4. 1
__. 2
__. 3
__.
= 4000 m

11. Conversion Practice Try these conversions using the ladder method.
1000 mg = _______ g 1 L = _______ mL 160 cm = _______ mm
14 km = _______ m 109 g = _______ kg 250 m = _______ km
Compare using <, >, or =.
56 cm m 7 g mg

12. Metric Conversion Challenge
Write the correct abbreviation for each metric unit.
1) Kilogram _____ 4) Milliliter _____ 7) Kilometer _____
2) Meter _____ 5) Millimeter _____ 8) Centimeter _____
3) Gram _____ 6) Liter _____ 9) Milligram _____
Try these conversions, using the ladder method.
10) 2000 mg = _______ g 15) 5 L = _______ mL 20) 16 cm = _______ mm
11) 104 km = _______ m 16) 198 g = _______ kg 21) 2500 m = _______ km
12) 480 cm = _____ m 17) 75 mL = _____ L 22) 65 g = _____ mg
13) 5.6 kg = _____ g 18) 50 cm = _____ m 23) 6.3 cm = _____ mm
14) 8 mm = _____ cm 19) 5.6 m = _____ cm 24) 120 mg = _____ g

13. Compare using <, >, or =.
25) 63 cm m 27) 5 g mg 29) 1,500 mL L
26) 536 cm dm 28) 43 mg g 30) 3.6 m cm

14. Olympic Speed Skating 0 m/s 12 m/s
How many miles/hour is Shani Davis traveling?
There are 1610 meters in a mile.

15. Reflection (back-side of warm-up sheet)
What is the difference between speed and velocity?
Homework: Pick up a bus schedule from the bus you ride home. Bring it to class tomorrow. (5 points).

16. Domino Derby Set up 25 equally spaced dominoes in a straight line.
Use a meter stick to measure the total length of the row of dominoes, and record the length.
Use a stopwatch to measure how long it takes the dominoes to fall.
Predict what would happen if the distance between the dominoes changed.
Test your prediction.