1 - 10 van 16 bronnen weergeven

Biodiversity and natural selection

Patterns and processes of evolution. How evolution and natural selection are reflected in the similarities and differences of organisms. 

Onderwerp en thema
Form 2
Biology
Balance of nature
The natural environment
Type bron
Video
Taal
English
Uitgever
California Academy of Sciences
Publicatiedatum
2014
Schepper/Auteur
California Academy of Sciences
Trefwoord
Biodiversity
Natural selection

Circuit Construction Kit: AC

  • Explain basic electricity relationships in series and parallel circuits.
  • Use an ammeter and voltmeter to take readings in circuits.
  • Provide reasoning to explain the measurements and relationships in circuits.
  • Build circuits from schematic drawings.
  • Determine if common objects are conductors or insulators.
  • Compare and contrast AC and DC circuits.
  • Describe how capacitors and inductors behave in a circuit.
  • Experimentally determine the RC time constant.
  • Construct RLC circuits and determine the conditions for resonance.
Onderwerp en thema
Form 2
Physics
Current electricity
Concept of current electricity
Type bron
Simulatie
Taal
English
Uitgever
pHET Interactive Simulations
Publicatiedatum
No date
Schepper/Auteur
Amy Rouinfar (lead designer - HTML5)
Trefwoord
Electric Circuit
RLC Circuit
Ohm's Law

How many solar panels needed to electrify my home?

This podcast (audio) file explains how electric current can be obtained from the sun through the solar panel using direct illumination of the sun rays

Onderwerp en thema
Form 2
Physics
Current electricity
Concept of current electricity
Type bron
Media (afbeeldingen, foto's, illustraties, audio)
Taal
English
Uitgever
SOUNDCLOUD
Publicatiedatum
2022
Schepper/Auteur
The Energy Show
Barry Cinnamon
Bron
Trefwoord
Solar panels
Solar power

Matter and energy in food webs

Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem. Transfers of matter into and out of the physical environment occur at every level. Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.

Onderwerp en thema
Form 2
Biology
Balance of nature
Food chain and food web
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2022
Schepper/Auteur
Sal Khan
Trefwoord
Food webs

Ohm's Law

  • Predict how current will change when resistance of the circuit is fixed and voltage is varied.
  • Predict how current will change when voltage of the circuit is fixed and resistance is varied.
Onderwerp en thema
Form 2
Physics
Current electricity
Concept of current electricity
Type bron
Simulatie
Taal
English
Uitgever
pHET Interactive Simulations
Publicatiedatum
No date
Schepper/Auteur
Michael Dubson (Developer/Lead)
Trefwoord
Ohm's Law
Electric current
Resistance
Voltage

Reflections

This online interactive lesson discusses what reflections are and provides examples of reflections.

Onderwerp en thema
Form 2
Mathematics
Geometrical transformations
Reflection
Type bron
Cursus
Taal
English
Uitgever
flexbooks
Publicatiedatum
2022
Schepper/Auteur
CK-12
Trefwoord
Reflections
Geometry

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.

Onderwerp en thema
Form 2
Physics
Current electricity
Concept of current electricity
Type bron
Werkbladen en klassikale activiteiten
Taal
English
Uitgever
Department of Higher Education
Publicatiedatum
No date
Schepper/Auteur
Leigh Kleynhans
Deelnemer
Michael Atkinson
Trefwoord
Electric current
Resistance
Ohm's Law

Rotations

 

This video will look at rotation. Rotation involves turning a shape around a set point.

Onderwerp en thema
Form 2
Mathematics
Geometrical transformations
Rotations
Type bron
Video
Taal
English
Uitgever
FuseSchool Global Education
Publicatiedatum
2019
Schepper/Auteur
FuseSchool Global Education
Trefwoord
Rotations

Rotations

This online lesson explains what rotations are.

Onderwerp en thema
Form 2
Mathematics
Geometrical transformations
Rotations
Type bron
Cursus
Taal
English
Uitgever
flexbooks
Publicatiedatum
2022
Schepper/Auteur
CK-12
Trefwoord
Rotations

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.

Onderwerp en thema
Form 2
Physics
Current electricity
Concept of current electricity
Type bron
Studieboeken
Taal
English
Uitgever
Department of Higher Education
Publicatiedatum
No date
Schepper/Auteur
Leigh Kleynhans
Deelnemer
Michael Atkinson
Trefwoord
Voltage
Electric current
Ohm's Law