Displaying 71 - 80 of 97 Resources

Phases of meiosis I

How homologous chromosomes separate into two sets. Prophase I, metaphase I, anaphase I, and telophase I.

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

Plotting projectile displacement, acceleration, and velocity

Plotting projectile displacement, acceleration, and velocity as a function of time.

Subject and Topic
Form 2
Physics
Motion in a straight line
Distance and displacement
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2011
Creator/Author
Sal Khan
Keyword
Displacement
Acceleration
Velocity
Motion

Positive and Negative Integers

This lesson will be the first of six lessons guiding students in constructing the abstract concepts necessary to understand adding positive and negative integers. It is designed for adult learners (or middle school or older) who are not fluent with using numbers. A real life lesson will be included in this series of lessons-Budgeting.

Subject and Topic
Form 1
Mathematics
Algebra
Algebraic operations
Resource Type
Lesplan
Language
English
Publisher
OER Commons
Publication Date
2019
Creator/Author
Lynne Alexander
Keyword
Integers
Positive numbers
Negative numbers

Projectile at an angle

Figuring out the horizontal displacement for a projectile launched at an angle.

Subject and Topic
Form 2
Physics
Motion in a straight line
Speed and velocity
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2011
Creator/Author
Sal Khan
Keyword
Projectile motion
Velocity
Speed
Motion
two dimensional motion

Projectile Motion

  • Determine how each parameter (initial height, initial angle, initial speed, mass, diameter, and altitude) affects the trajectory of an object, with and without air resistance.
  • Predict how varying the initial conditions will affect a projectile’s path, and provide an explanation for the prediction.
  • Estimate where an object will land, given its initial conditions.
  • Determine that the x and y motion of a projectile are independent.
  • Investigate the variables that affect the drag force.
  • Describe the the effect that the drag force has on the velocity and acceleration.
  • Discuss projectile motion using common vocabulary (such as: launch angle, initial speed, initial height, range, time).
Subject and Topic
Form 2
Physics
Motion in a straight line
Distance and displacement
Resource Type
Simulatie
Language
English
Publisher
pHET Interactive Simulations
Publication Date
No date
Creator/Author
Amy Rouinfar (lead designer - HTML5)
Keyword
Kinetic Energy
Projectile motion
Vectors

Projectile motion graphs

Visualising position, velocity and acceleration in two-dimensions for projectile motion.

Subject and Topic
Form 2
Physics
Motion in a straight line
Distance and displacement
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2018
Creator/Author
Khan
Keyword
Projectile motion
Projectile motion graphs
Position

Ramp: Forces and Motion

  • Predict, qualitatively, how an external force will affect the speed and direction of an object's motion.
  • Explain the effects with the help of a free body diagram.
  • Use free body diagrams to draw position, velocity, acceleration and force graphs and vice versa.
  • Explain how the graphs relate to one another.
  • Given a scenario or a graph, sketch all four graphs.
Subject and Topic
Form 2
Physics
Motion in a straight line
Equations of uniformly accelerated motion
Resource Type
Simulatie
Language
English
Publisher
pHET Interactive Simulations
Publication Date
No date
Creator/Author
Sam Reid (Developer)
Keyword
Force
Velocity
Acceleration

Resistance in an electric circuit

Electrical devices convert the electrical energy carried by the charges into other types of energy such as heat, sound, and motion. Components in the appliance resist the flow of charge and are referred to as resistors. In this unit1 you will understand what resistance is, the factors that affect the resistance and the relationship between resistance and current.

Subject and Topic
Form 2
Physics
Current electricity
Concept of current electricity
Resource Type
Werkbladen en klassikale activiteiten
Language
English
Publisher
Department of Higher Education
Publication Date
No date
Creator/Author
Leigh Kleynhans
Contributor
Michael Atkinson
Keyword
Electric current
Resistance
Ohm's Law

Safety with electricity

Most of us use electricity every day in many different ways so it is important that we understand the dangers, or hazards, associated with electricity and we know how to use it safely.

Subject and Topic
Form 2
Physics
Current electricity
Concept of current electricity
Resource Type
Studieboeken
Language
English
Publisher
Department of Higher Education
Publication Date
No date
Creator/Author
Leigh Kleynhans
Contributor
Michael Atkinson
Keyword
Voltage
Electric current
Ohm's Law

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