3NA Science (Physics) Chapter 1 Physical Quantities, Units and Measurement
By the end of the lesson, you should be able to
Physical Quantities <ul><li>A physical property is a quantity that can be measured  </li></ul><ul><li>Can you name some ph...
Imagine you ask about the age of a person, and the number is a numerical value. The information conveyed during the conver...
No NAKED numbers please!!! <ul><li>Do these numbers make sense to you?  </li></ul><ul><li>What do they lack? </li></ul><ul...
Quantities, Magnitude, Units <ul><li>The  weight  of a coin is  12   g .  </li></ul>Physical quantity magnitude unit All p...
Base Quantities and its Unit m metre length mol mole Amount of substance A ampere current s second time cd candela Luminou...
Very  small  and very  BIG  quantities A more efficient way of expressing very big or very small number is to do so in sci...
Prefixes giga (G) mega (M) kilo (k) deci (d) centi (c) milli (m) micro (  ) nano (n) X 10 9 X 10 6 X 10 3 X 10 -1 X 10 -2...
Upcoming SlideShare
Loading in...5
×

Chapter 1 slides na-12

603

Published on

Published in: Education, Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
603
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
15
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Chapter 1 slides na-12

  1. 1. 3NA Science (Physics) Chapter 1 Physical Quantities, Units and Measurement
  2. 2. By the end of the lesson, you should be able to
  3. 3. Physical Quantities <ul><li>A physical property is a quantity that can be measured </li></ul><ul><li>Can you name some physical quantities? </li></ul>
  4. 4. Imagine you ask about the age of a person, and the number is a numerical value. The information conveyed during the conversation will not be very specific or useful. How old is your little sister, Jon? She is 12! 12? 12 months? 12 years old?                                                                                  
  5. 5. No NAKED numbers please!!! <ul><li>Do these numbers make sense to you? </li></ul><ul><li>What do they lack? </li></ul><ul><li>45 897.00 </li></ul><ul><li>67000 </li></ul><ul><li>0.325 3 x 10 8 </li></ul>
  6. 6. Quantities, Magnitude, Units <ul><li>The weight of a coin is 12 g . </li></ul>Physical quantity magnitude unit All physical quantities are presented with a magnitude and a unit .
  7. 7. Base Quantities and its Unit m metre length mol mole Amount of substance A ampere current s second time cd candela Luminous intensity K kelvin temperature kg kilogram mass Symbol Base unit Base quantity
  8. 8. Very small and very BIG quantities A more efficient way of expressing very big or very small number is to do so in scientific notation, using appropriate prefixes . Bacteria is very small…..it is about 0.000 001 m long… The sun is 149 342 000 000 m away from us…
  9. 9. Prefixes giga (G) mega (M) kilo (k) deci (d) centi (c) milli (m) micro (  ) nano (n) X 10 9 X 10 6 X 10 3 X 10 -1 X 10 -2 X 10 -3 X 10 -6 X 10 -9 X 1 000 000 000 X 1 000 000 X 1 000 X 0.1 X 0.01 X 0.001 X 0.000 001 X 0.000 000 001
  1. A particular slide catching your eye?

    Clipping is a handy way to collect important slides you want to go back to later.

×