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Unit 10: Obtaining and using energy
EduBook Organización
- 3398 visitas
Acid rain (n): rain which is acidic due to the presence of pollutants. balanced (adj): distributed evenly. biomass (n): organic matter used as a source of energy. blade (n): the arm which makes a wind…
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Summaries - Obtaining and using energy
EduBook Organización
- 2848 visitas
1. Forms of energy Energy is a property of matter which gives it the ability to produce change in its own physical and chemical properties and in those of other bodies... The main forms. of energy are:…
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Summaries - Waves. Light and sound
EduBook Organización
- 2743 visitas
1. Waves An oscillatory or vibratory motion takes place around a central position. It produces the same amount of movement on both sides of this position. A wave is the transmission of an oscillatory or…
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Forms of energy
EduBook Organización
- 2597 visitas
1.1. Energy Energy is a property of matter which gives it the ability to produce change in its own physical and chemical properties and in those of other bodies. 1.2. The main forms of energy The main…
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Energy transfer: heat
EduBook Organización
- 2499 visitas
1.1. Heat The particles that make up matter store energy: Heat or thermal energy is the energy that is transferred from hot bodies to cold bodies (figure 1). All the particles that make up bodies have…
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The propagation of heat
EduBook Organización
- 2372 visitas
Heat transfers from a hot object to a cold object by means of three mechanisms: conduction, convection and radiation. 6.1. Conduction Heat is transmitted through solid substances by conduction (figure…
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Biofuels: plant materials to replace oil
EducaMadrid Organización
- 5715 visitas
Facing the growth of CO2 emissions from transport and the difficulty to find alternatives to the traditional fuels for transport, Europe is proposing an immediate answer. It is encouraging the…
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Practica. Activitat 1
EduBook Organización
- 13572 visitas
Completa aquestes igualtats: 195 min = h min 412 s = min s 80 min = h min 8.136 s = h min s 715 min = h min s
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Cálculos con unidades de tiempo 4
EduBook Organización
- 1832 visitas
Haz estas restas: 3 h 15 min 20 s – 1 h 25 min 30 s = h min s 12 h 30 min – 7 h 50 min 17 s = h min s 48 h 45 s – 5 h 13 min 50 s = h min s 52 h 17 min 58 s – 10 h 55 min 32 s = h min s
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Càlculs amb unitats de temps 3
EduBook Organización
- 1175 visitas
Fes aquestes restes: 3 h 15 min 20 s – 1 h 25 min 30 s = h min s 12 h 30 min – 7 h 50 min 17 s = h min s 48 h 45 s – 5 h 13 min 50 s = h min s 52 h 17 min 58 s – 10 h 55 min 32 s = h min s