WorksheetsEnergy
Total questions: 12
Worksheet time: 6mins
What is the energy?
The ability of the matter to produce work in the form of movement, light, heat.
Not Capacity that has the matter of producing work in the form of movement, light, heat, etc.
how many types of energy are there?
8
5
6
7
what is the kinetic energy ?
This is the stored
energy an object has
because of its elevation
above the ground.
This energy is
produced by mass in
movement.
This energy is the sum of kinetic
and potential energy.
Some bodies like the
Sun, fire or the lava of a
volcano emit energy in
the form of heat.
What is solar energy?
Wind turbines transform the mechanical
energy of the wind into electrical energy.
This is the mechanical energy of moving water. We
can produce electrical energy using water falling
from a reservoir or the tides of the sea.
This is the mechanical energy of moving water. We
can produce electrical energy using water falling
from a reservoir or the tides of the sea.
The Sun is the source of solar radiation.
Depending on how we collect it, this can
produce electrical energy or heat energy.
which are fossil fuels?
We use coal, gas and oil for
moving vehicles and for heating.
In thermoelectric power plants,
the chemical energy in the fossil
fuels is transformed into heat
energy, and the heat energy
is transformed into electrical
energy.
In nuclear power stations,
energy from uranium,
called nuclear energy,
is transformed into heat
energy, and the heat energy
is transformed into electrical
energy.
QUE E A ENERXÍA E O MEDIO AMBIENTES?
“O uso que facemos das canteiras e minas causan a erosión do solo e alteran o paisaxe e os ecosistemas. A construción dos encoros afecta aos ecosistemas.
“
Algúns dos gases que botan os vehículos (CO2) reaccionan con aire e producen nubes repletas de substancias ácidas. A choiva producida por esas nubes chámase choiva ácida e dana o solo.
O uso da enerxía permitiu o progreso e os avances dos seres humanos. Non obstante, a produción e o uso da enerxía teñen consecuencias negativas no medio ambiente.
Que e o efecto imvernadoiro?
“Os organismos acuáticos morren polos vertidos industrais que se botan nos ríos e mares. As centrais nucleares poden ter fugas de auga radioactiva ao mar causando dano aos ecosistemas marinos.
“Cada vez que acendemos a luz ou nos damos unha ducha estamos a consumir enerxía. Esta prodúcese, principalmente, queimando gas, carbón ou petróleo.
Que e a tennoloxia?
“os científicos usan a tecnoloxía moderna para descifrar un código moi importante, o xenoma humano. Este código contén toda a información sobre como somos creados e como funcionan as nosas células.
É o uso do coñecemento científico para un propósito: a tecnoloxía axúdanos a facer as cousas máis eficientemente.
Quien creo el teléfono?
Antonio Meucci
Alexander Graham Bell
Na segunda Guerra Mundial onde se viu a necesidade de comunicarse a distancia, polo que Motorola creou un equipo militar chamado Handie Talkie H12-16 para comunicacións por ondas de radio decidió crear un teléfono móvil?
Verdadero
Falso
O uso da energía afectou a varias cousas.
Selecciona as correctas.
A Terra
Os océanos
A xeosfera
Seres vivos
That two energies form the mechanical energy?
selection
Kinetic energy
Heat energy
Light energy
Potential energy
