Displaying 1 - 4 of 4 Resources

pH Scale

Outcomes:

  • Determine if a liquid is acidic, basic, or neutral
  • Place acids or bases in relative order
  • Describe on a molecular scale, with illustrations, how the water equilibrium varies with pH
  • Determine concentration of hydroxide, hydronium and water at a given pH
  • Relate liquid color to pH
  • Predict (qualitatively and quantitatively) how dilution and volume will affect the pH and concentration of hydroxide, hydronium and water
Subject and Topic
Form 1
Biology
Introduction to biology
The biology laboratory
Resource Type
Simulatie
Language
English
Publisher
pHET Interactive Simulations
Publication Date
No date
Creator/Author
Yuen-ying Carpenter (lead)
Keyword
pH
Dilution
Concentration
Acids
Bases

Trigonometric Ratios

By the end of this unit you will be able to:

  • Define and use the trigonometric ratios of cosθ, sinθ and tanθ.
  • Calculate the trigonometric ratios in each quadrant of the Cartesian plane.
  • Calculate the value of expressions containing trigonometric ratios.
Subject and Topic
Form 2
Mathematics
Trigonometry
Trigonometry ratios
Resource Type
Cursus
Language
English
Publisher
Pressbooks
Publication Date
2020
Creator/Author
Dylan Busa
Keyword
Trigonometry
Trigonometric ratios

Trigonometry

Outcomes

By the end of this course you will be able to:

  • Define and use the trigonometric ratios of  cosθ,  sinθ, and  tanθ.
  • Calculate the value of expressions containing trigonometric ratios with a calculator.
  • Calculate the value of expressions containing trigonometric ratios without a calculator.
  • Work with trigonometric tables.
  • Solve problems in 2 dimensions involving angles of elevation and depression
Subject and Topic
Form 2
Mathematics
Trigonometry
Trigonometry ratios
Resource Type
Cursus
Language
English
Publication Date
2023

Vernier scale use 0.02 scale measurement is 19.44

This diagram, Vernier scale use 0.02 scale measurement is 19.44 mm, illustrates how to read the length of the given object using vernier calliper.

Subject and Topic
Form 1
Physics
Measurement
Basic apperatus/equipments and their uses
Resource Type
Media (afbeeldingen, foto's, illustraties, audio)
Language
English
Publisher
Wikimedia commons
Publication Date
2011
Creator/Author
Lookang
Source
Keyword
Vernier
Calliper