1 - 10 van 12 bronnen weergeven

Acceleration due to gravity at the space station

What is the acceleration due to gravity at the space station.

Onderwerp en thema
Form 2
Physics
Motion in a straight line
Motion under gravity
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2011
Schepper/Auteur
Khan Academy
Trefwoord
Motion
Gravity

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

Eating & Exercise

Outcomes:

  • Design a diet and exercise regimen.
  • Estimate the number of calories required for basic survival.
  • Estimate the number of calories burned by exercise.
  • Explain how heart health depends on diet and exercise.
  • Explain how Body Mass Index (BMI) depends on weight and height.
Onderwerp en thema
Form 2
Biology
Nutrition
Nutrition and food nutrient concepts
Type bron
Simulatie
Taal
English
Uitgever
pHET Interactive Simulations
Publicatiedatum
No date
Schepper/Auteur
Sam Reid (Developer)
Trefwoord
Biology
Exercise
Energy

Gravity for astronauts in orbit

Why do astronauts appear weightless despite being near the Earth?

Onderwerp en thema
Form 2
Physics
Motion in a straight line
Motion under gravity
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2011
Schepper/Auteur
Sal Khan
Trefwoord
Gravity
Laws of motion
Velocity

Introduction to gravity

Basics of gravity and the Law of Universal Gravitation.

Onderwerp en thema
Form 2
Physics
Motion in a straight line
Motion under gravity
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2012
Schepper/Auteur
Sal Khan
Trefwoord
Gravity
Law of Universal Gravitation

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

Motion in One Dimension

This unit is about how things move along a straight line or, more scientifically, how things move in one dimension. Examples of this would be the movement (motion) of cars along a straight road or of trains along straight railway tracks.

Onderwerp en thema
Form 2
Physics
Motion in a straight line
Motion under gravity
Type bron
Studieboeken
Taal
English
Uitgever
Department of Higher Education
Publicatiedatum
No date
Schepper/Auteur
Leigh Kleynhans
Deelnemer
Michael Atkinson
Trefwoord
Distance
Displacement
Speed
Velocity

Space station speed in orbit

Speed necessary for the space station to stay in orbit.

Onderwerp en thema
Form 2
Physics
Motion in a straight line
Motion under gravity
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2011
Schepper/Auteur
Sal Khan
Trefwoord
Speed
Gravity
Law of Universal Gravitation

Viewing g as the value of Earth's gravitational field near the surface

Viewing g as the value of Earth's gravitational field near the surface rather than the acceleration due to gravity near Earth's surface for an object in freefall.

Onderwerp en thema
Form 2
Physics
Motion in a straight line
Motion under gravity
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2011
Schepper/Auteur
Sal Khan
Trefwoord
Gravity
Law of Universal Gravitation

Worked example: analysing a generic food web

We can analyse the arrows in a food web to identify producers, primary consumers, secondary consumers, and decomposers.

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