Displaying 11 - 16 of 16 Resources

Newton's laws of motion

Newton's Laws of Motion

Subject and Topic
Form 2
Physics
Newton's law of motion
Resource Type
Cursus
Language
English
Publication Date
2023

Newton's second law of motion

Newton's second law of motion is F = ma, or force is equal to mass times acceleration. Learn how to use the formula to calculate acceleration.

Subject and Topic
Form 2
Physics
Newton's law of motion
2nd law of motion
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2012
Creator/Author
Sal Khan
Keyword
Laws of motion
Second Law of Motion
Newton

Newton's third law of motion

Learn about Newton's third law of motion, which states that for every action there is an equal and opposite reaction. Look at multiple examples that illustrate this law, including pushing a block on ice, pushing against a desk, walking on sand, how rockets work, and how an astronaut could save themselves from drifting in space.

Subject and Topic
Form 2
Physics
Newton's law of motion
3rd law of motion
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2012
Creator/Author
Sal Khan
Keyword
Third Law of Motion
Laws of motion
Motion
Newton

Osmosis

Osmosis is the movement of water across a semi-permeable membrane from an area of low solute concentration to an area of high solute concentration. Osmosis helps regulate the flow of water in and out of cells, which is crucial to their function.

Subject and Topic
Form 2
Biology
Transport of materials in living things
Diffusion, osmosis and mass flow
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2015
Creator/Author
Sal Khan
Keyword
Osmosis

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.

Subject and Topic
Form 2
Biology
Balance of nature
Food chain and food web
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2022
Creator/Author
Sal Khan
Keyword
Food webs

Worked example: analysing an ocean food web

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

Subject and Topic
Form 2
Biology
Balance of nature
Food chain and food web
Resource Type
Video
Language
English
Publisher
Khan Academy
Publication Date
2022
Creator/Author
Sal Khan
Keyword
Food webs