Scarcity, Energy Security and Climate Change (copy)

week 8

what is scarcity?

situation which something is not easy to get(short supply)

what is energy?

power derived from the utilization of physical or chemical resources(oxford dictionary)

the ability to do work(physics term)

list 5 mains forms of energy.

-heat energy

chemical

electromagnetic

nuclear

mechanical

explain heat energy

-internal motions of the atom, because moving particle produce heat

-can be produced by friction

-can causes changes in temperature and phase of any form of matter

explain chemical energy

-energy that stored in the bond of atoms & molecules

-when bonds are broken, energy released

explain electromagnetic energy

-power lines carry this into your home in the form of electricity

explain nuclear energy

-the nucleus of an atom is the source of nuclear energy

explain mechanical energy

-the energy acquired, when work is done to an object

-when we kick a football, we give mechanical energy to the football to make it move

Energy Security

• energy security is an uninterrupted availability of energy sources at an affordable price (defines by IEA)

explain 4As of energy security

-AVAILABILITY

-ACCESSIBILITY

-AFFORDABILITY

-ACCEPTABILITY

List all of the greenhouse gas (GHG) based on Kyoto Protocol 1992

-carbon dioxide

-methane

-nitrous oxide

-hydroflourocarbons

-perfluorocarbons

-sulfur hexafluoride

Sources of GHG?

CO2 - fossil fuel use in transportation, building heating and cooling, manufacturing industries, open burning, bushfire

CH4 - deforestation reduces offset agriculture, natural gas distribution, waste landfills, wetlands

N 2 O - fertilizer, biomass gasification, transportation

Halo -C, water vapors, CO, NO 2 - human activities

What is the effect of GHG?

-increment of 1.19 celcius global temperature

-united nations paris agreement set a target of limiting warming to 1.5 celcius

-united nations global climate change conference set a target of zero carbon emission by 2050

Hoe does climate change affect human health?

Kyoto Protocol

-aimed to reduce the emission of gasses that contribute to global warming

-this protocol operationalizes the united nations framework convention on climate change by comitting industrialed countries and economies in transition to limit and reduce greenhouse gases GHG emissions in accordance with agreed individual targets

what is Carbon footprints?

-footprint means area of interest

-Carbon footprint is defined as annual emission of carbon dioxide due to personal, community ,organization ,event or product that is used in daily life

-unit , gCO2 or kgCO2 or tCO2

1 kgCO2 is emitted when?

Calculation of carbon footprint for electrical appliances

Power of 1 electrical appliance (kW) x efficiency (decimal point) x duration of usage in 1 day (hour) x 39 g CO2 / 50 kWh

Fill in the blank: The basic unit of __________ is the atom.

matter

Fill in the blank: __________ is the energy of motion.

Kinetic energy

Fill in the blank: The __________ effect describes the warming of the Earth's surface due to greenhouse gases.

Greenhouse

Fill in the blank: __________ energy is stored in the bonds of chemical compounds.

Chemical

Fill in the blank: The process of __________ involves the transformation of liquid into gas.

Evaporation

Fill in the blank: __________ refers to the ability to do work or produce change.

Energy

Fill in the blank: The __________ Cycle describes the continuous movement of water on, above, and below the surface of the Earth.

Water

Fill in the blank: In physics, __________ is the ability to do work caused by a change in position.

Potential energy

Fill in the blank: The __________ Protocol is an international treaty aimed at reducing greenhouse gas emissions.

Kyoto

Fill in the blank: __________ gas is emitted during combustion processes like burning fossil fuels.

Carbon dioxide