Big 7 Chapter 1 3 Metric System Base

Big 7 - Chapter 1. 3 – Metric System Base Units Type of Measurement Length Mass Area Volume Speed Energy Temperature Force Standard Metric

1. Length Metric: meters (m) English: miles and inches 1 inch = 2. 54 cm 1 mile = 1. 61 km

2. Mass Metric: grams (g) English: slugs (slug) 1 kilogram = 2. 2 lbs

3 a. Area a=lxw Metric: square meters (m 2) English: acres, square yards

1. Calculate the following areas: a. 2 m x 2 m b. 3 m x 5 m c. 5 m x 8 m d. 10 mm x 20 mm e. Area of your textbook

3 b. Volume Metric: liters (L) English: gallons and cups Solid: V = l x w x h Liquid: 1 gallon = 3. 78 liters 1 cup =. 237 liters

Calculate the following volumes: a. 2 m x 2 m b. 3 m x 10 m x 2 m c. 3 cm x 3 cm d. Volume of your textbook

4. Speed Metric: meters per second (m/s) English: miles per hour (mph) 1 mph =. 45 m/s If you’re travelling 5 mph, about how many m/s are you going? If you’re travelling 50 m/s, about how many mph are you going?

On the road, the metric speed is kilometer per hour (km/hr) 30 mph is about 50 km/hr 60 mph is about 100 km/hr

5. Energy Metric: Joules (J) English: calories (cal)

6. Temperature Metric: Celsius (C) English: Fahrenheit (F) 212˚F = 100 ˚C 70 ˚F = 21 ˚C 32 ˚F = 0 ˚C

7. Force Metric: Newton (N) English: pound (lb)

Create a space in your notebook for key information and formulas, preferably in the back of your notebook. Draw and fill in the table. Measurment Length Area (l x w) Volume , liquid: Volume, solid: (l x w x h) Mass Temperature Speed Force Energy Time SI Unit Abbreviation

Significant Figures Digits reported in a measurement: How would you measure this? 2, 2. 37 or 2. 375 You measure all known plus one digit that is uncertain.

Steps to Proper Number of Significant Figures. 1. Determine Unmarked Increments 2. Determine what your measurement is between 3. Add one digit after (called digit of uncertainty and it could be zero)

Big 7 - Chapter 1. 3 – Intro to the Metric System 1. Length 2. Mass 3. Volume 4. Speed 5. Energy 6. Temperature 7. Force Metric units is meters (m) vs. English is miles and inches Metric: grams (g) English: slugs Metric: liters (L) English: gallons and cups Metric: meters per second (m/s) English: miles per hour Metric: Joules (J) English: calories Metric: Celsius (C) English: Fahrenheit (F) Metric: Newton (N) English: slug (slug)