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MEASUREMENT The Metric System

MEASUREMENT The Metric System. Video. The Tower of Terror II. The Tower of Terror II at Dreamworld on Australia’s Gold Coast is one of the fastest rides in the world.

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MEASUREMENT The Metric System

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  1. MEASUREMENT • The Metric System

  2. Video

  3. The Tower of Terror II The Tower of Terror II at Dreamworld on Australia’s Gold Coast is one of the fastest rides in the world. The tower’s electromagnetically powered ‘Escape Pod’ accelerates through a 206m launch tunnel,to a speed of 161 km/h (100mph) in just 7 seconds, with a maximum of 4.5Gs. The track turns vertical 90 degrees, and after rising to a height of 38 stories, there is a 100m freefall where riders experience 6.5 seconds of weightlessness. The original Tower of Terror had its 100,000th passenger pass through in just 18 months, and had travelled 56,668 km – equivalent distance to almost 1.5 trips around the world. Over 600 metric tons of steel, 1200 cubic metres of concrete (3500 metric tons) – delivered by 175 concrete trucks, 3500 litres of paint, and over 16,000 bolts hold the structure together. At a cost of A$16 million to build, it is one of the worlds top 4 fastest rides.

  4. The Metric System New Zealand officially changed to the Metric System on December 14, 1976. The metric system is used to measure objects. It enables us to get measures of distance, mass (weight), capacity and area using units that relate directly to each other. We use the following base units Length (distance)………….. metre (m) Mass (weight)………………… kilogram (kg) Capacity (liquid volume).. litre (L) Area ……………………………… hectare (ha) Time …………………………….. Second (s) Question: what countries do not use the metric system?? All other units are based on these

  5. Prefixes These are the most common prefixes that we use. They are used to derive larger or smaller units.

  6. Prefixes Expanded table

  7. Using Metric Units • To convert from one unit of measurement to another • - Multiple or divide by the appropriate power of 10 • From a larger unit to a smaller unit - multiply • (i.e. you get more of them) • Example: convert 3.1 kg into g = 3.1 ⨯1000 = 3100g • From a smaller unit to a larger unit - divide • (i.e. you get less of them) • Example: convert 12500gm into kg = 12500 / 1000 = 12.5kg

  8. Using Metric Units

  9. The Metric System • You will also need to be familiar with • Temperature - measured in degrees Celsius (°C) • Money - measured in dollars ($) and cents (c) • Time - non-metric units which includes seconds (s) • minutes (min), hours (h), days, years etc

  10. Homework Exercise A: Pages 159/160

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