Physics

Posted by on Apr 13, 2018 in Physics | 0 comments

//Light is a particle:  Energy of Light is contained in small packets. bundles of energy=photons. Explains why light can travel through space. explains “Photoelectric Effect”>Energy from the light shining on a metal plate gives electrons in the metal enough energy escape. Bright light has more energy than dim light, but dim blue light can dislodge electrons while bright red light cannot. Low fre. light (red/orange) cannot eject electrons. High freq. light (blue/viol.) can eject electrons. Read More

;ofg

Posted by on Mar 18, 2018 in Physics | 0 comments


Species Diversity; 2 variables – the richness( the amount of species in an ecosystem) and evenness (in one dessert 1 lagartija and 5 cactus and in the other dessert 5 lagartijas and 1 cactus)


Genetic diversity; Range of genetic materials in an ecosystem of species. humans can alter the genetic diversity by artificially breeding or genetically engineering populations.


Habitat diversity; different habitats in a same ecosystem.


If there is more diversity in one ecosystem will be more healthy but there

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World War 2

Posted by on Mar 7, 2018 in Physics | 0 comments

Militarism: Build-up of armed forces to prepare for war.

Alliance: Agreement between countries to defend or fight together.

Imperialism: Belief of a country in building upa n empire and controlling less powerful countries.

Nationalist: Pride in a country, with people wanting to govern themselves or defend themselves.

CAUSES WW1:

1880 Need for market.

1882 British-Belgian alliance

1870 Franco-Prussian War (Alsace and Lorraine were given to German Empire.

1882 The Triple Alliance (G,AH,I)

1900 Navy. German

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Magnetism

Posted by on Nov 4, 2013 in Physics | 0 comments

Induced magnetism: magnets attract materials by inducing magnetism in them, in other words the material becomes a magnet as well. The side of the material facing the magnet will become the opposite pole as the magnet.
Ferrous material: magnetic – anything which contains iron, nickel, or cobalt can be magnetised
Non–ferrous material: non-magnetic e.g. copper, grass, ketchup, butter, wood, ass-gravy (poop) etc.
Magnetisation methods:
-inducing magnetism produces a weak magnet. It can be magnetised

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