Download presentation

Presentation is loading. Please wait.

Published byJohnathan Bruce Modified over 5 years ago

1
Systéme International d’unités (SI) International System of Units otherwise known as the metric system....

2
General Information International System of Units (SI) is a version of the metric system. SI is based on the powers of 10.

3
General Information Scientist world-wide have agreed to use SI to allow comparison of data and communication of results with each other.

4
Length Def: distance between two points Basic Unit: meter (m) Common Units: kilometer (km), meter (m), centimeter (cm), millimeter (mm)

5
Length Measurement tool: ruler, measuring tape, meter stick Common Conversions: 1 km = 1000 m, 1 m = 100 cm, 1 m = 1000 mm, 1 cm = 10 mm

6
Meter stick

7
Mass Def: the amount of matter an object contains. Basic Unit: kilogram (kg) Common Units: kilogram (kg), gram (g), milligram (mg)

8
Mass Measurement tools: pan balance, triple-beam balance, electronic balance Common conversions: 1 kg = 1000 g, 1 g = 1000 mg

9
Mass Weight: the pull of gravity on the mass of an object.

10
Pan balance

11
Triple-beam balance

12
Electronic balance

13
Volume Def: amount of space an object takes up Basic unit: liter (L) Common units: liter (L), milliliter (mL), cubic centimeter (cm 3 )

14
Volume Measurement tools: graduated cylinder, ruler (for rectangular solids) Common conversions: 1 L = 1000 mL, 1 mL = 1 cm 3

15
Volume - Reading a graduated cylinder Look at liquid level at eye level. Read at the bottom of the meniscus. Meniscus - the bottom of the curve of liquid in a graduated cylinder.

16
Looking at graduated cylinder witha meniscus

17
Volume - How to determine Rectangular solids: volume is determined by measuring height, width, and length and multiplying them together.

18
Rectangular solid measurements

19
Volume - How to determine Irregular solids: displacement of liquid (how much the water rises when an object is placed in the water.)

20
Volume by displacement

21
Time Basic unit: second (s) Common units: second (s), minute (min), hour (hr) Measurement tools: clock, watch

22
Common conversions: 1 hr = 60 min, 1 min = 60 s, 1 s = 1000 ms

23
Temperature Def: a measurement of the average kinetic energy of the molecules in an object. Basic unit: Kelvin (K) Common Units: Kelvin (K), Celsius (°C)

24
Temperature Measurement tool: thermometer Common conversions: 0 K = -273°C, 0°C = 273 K

25
Common temperatures: Water freezes - 0°C, Water boils - 100°C, Human body temperature - 37°C, Room temperature - 20°C

Similar presentations

© 2021 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google