Displaying 11 - 20 of 99 Resources

Calculating Gravitational Potential Energy

Forces at a distance are explained by fields (gravitational, electric, and magnetic) permeating space that can transfer energy through space. Magnets or electric currents cause magnetic fields; electric charges or changing magnetic fields cause electric fields. 

Subject and Topic
Form 1
Physics
Work, energy and power
Energy
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2021
Creator/Author
Sal Khan
Keyword
Gravitational Energy
Energy
Magnetism

Calculating height using energy

Learn how you can calculate the maximum height of a launched object by using the total energy of a system. Energy that is conserved can be transferred within a system from one object to another changing the characteristics of each object, like position. 

Subject and Topic
Form 1
Physics
Work, energy and power
Energy
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2021
Creator/Author
Sal Khan
Keyword
Energy
Final Velocity

Calculating kinetic energy

Mathematical expressions, which quantify how the stored energy in a system depends on its configuration (e.g. relative positions of charged particles, compression of a spring) and how kinetic energy depends on mass and speed, allow the concept of conservation of energy to be used to predict and describe system behaviour.

Subject and Topic
Form 1
Physics
Work, energy and power
Energy
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2021
Creator/Author
Sal Khan
Keyword
Kinetic Energy
Energy

Calculating velocity using energy

Learn how you can calculate the launch velocity of an object by using the total energy of a system. Energy that is conserved can be transferred within a system from one object to another changing the characteristics of each object, like velocity.

Subject and Topic
Form 1
Physics
Work, energy and power
Energy
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2021
Creator/Author
Sal Khan
Keyword
Velocity
Energy

Charges and Fields

  • Determine the variables that affect the strength and direction of the electric field for a static arrangement of charges.
  • Investigate the variables that affect the strength of the electrostatic potential (voltage).
  • Explain equipotential lines and compare them to the electric field lines.
  • For an arrangement of static charges, predict the electric field lines. Verify the prediction using vector addition.
Subject and Topic
Form 1
Physics
Force
Types of forces
Resource Type
Simulatie
Language
English
Publisher
pHET Interactive Simulations
Publication Date
No date
Creator/Author
Amy Rouinfar (lead designer - HTML5)
Keyword
Electric Field
Voltage
Electrostatics

Chromosomal crossover in meiosis I

Meiosis is a process where germ cells divide to produce gametes, such as sperm and egg cells. In prophase I of meiosis, chromosomes condense and homologous recombination takes place, leading to genetic variation through chromosomal crossover. This forms a tetrad, which is made up of four chromatids (two sister chromatids per chromosome).

Subject and Topic
Form 1
Biology
Introduction to biology
Concept and terminologies of biology
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2015
Creator/Author
Sal Khan
Keyword
Meiosis

Colour Vision

Outcomes:

  • Determine what color the person sees for various combinations of red, green, and blue light.
  • Describe the color of light that is able to pass through different colored filters.
Subject and Topic
Form 1
Biology
Introduction to biology
Concept and terminologies of biology
Resource Type
Simulatie
Language
English
Publisher
pHET Interactive Simulations
Publication Date
No date
Creator/Author
Bryce Gruneich (lead)
Kathy Perkins (lead)
Keyword
Photons
Monochromatic Light
White Light
Rainbows

Comparing mitosis and meiosis

Comparison of the processes of mitosis and meiosis. Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell. Mitosis involves one cell division, whereas meiosis involves two cell divisions.

Subject and Topic
Form 1
Biology
Introduction to biology
Concept and terminologies of biology
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2015
Creator/Author
Sal Khan
Keyword
Meiosis
Mitosis

Coulomb's Law

  • Relate the electrostatic force magnitude to the charges and the distance between them
  • Explain Newton's third law for electrostatic forces
  • Use measurements to determine Coulomb’s constant
  • Determine what makes a force attractive or repulsive
Subject and Topic
Form 1
Physics
Force
Types of forces
Resource Type
Simulatie
Language
English
Publisher
pHET Interactive Simulations
Publication Date
No date
Creator/Author
Michael Barlow (lead developer)
Keyword
Coulomb's Law
Electrostatics
Electric Force

Density

Concept of density. This YouTube video will provide information about the concept of density. It’s great to use as an introduction to the topic or as a way to summarise the topic.

Subject and Topic
Form 1
Physics
Measurement
Derived quatities
Resource Type
Video
Language
English
Publisher
Fernando Ortiz
Publication Date
2021
Creator/Author
Fernando Ortiz