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Heat Transfer

Djaan Heathcote 11 preguntas

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Preguntas del test (11)

  1. 1What are the 3 ways heat can be transferred?
    1. AInsulation, conduction, radiation
    2. BConduction, radiation, convection
    3. CConvection, conduction, irradiation
  2. 2Materials that are poor conductors of heat and that can sometimes block heat transfer are called insulators.
    1. AVerdadero
    2. BFalso
  3. 3As air is [blank_start]heated[blank_end], its particles gain energy and move [blank_start]further[blank_end] apart, becoming [blank_start]less[blank_end] dense. This hot air is less dense than cool air and so it is pushed [blank_start]upwards[blank_end] by the cooler air around it.
    1. Aless
    2. Bheated
    3. Cfurther
    4. Dupwards
  4. 4Mark the correct boxes that show examples of conduction.
    1. ABeing warmed by an open fire
    2. BHeat flowing from a warm coffee cup to your hands
    3. CWater being heated in a saucepan
    4. DA saucepan getting hot on a stovetop
  5. 5Substances that transfer heat easily are known as conductors.
    1. AVerdadero
    2. BFalso
  6. 6Convection currents occur in
    1. ASolids
    2. BLiquids
    3. CGases
  7. 7Radiation transmits heat as [blank_start]invisible[blank_end] waves that travel at the speed of [blank_start]light[blank_end]. Heat travels through empty space between the Earth and the Sun. Heat from the sun cannot be transferred by [blank_start]conduction[blank_end] or convection because there are no [blank_start]particles[blank_end] to vibrate or flow in the vacuum of space.
    1. Ainvisible
    2. Blight
    3. Cradio
    4. Dlight
    5. Esound
    6. FLewis Hamilton's racecar
    7. GWinx
    8. Hconduction
    9. Iradiation
    10. Jinfiltration
    11. Kparticles
    12. Ldust
    13. Msnowflakes
  8. 8What happens to heat energy when it hits a surface?
    1. Areflected, absorbed and transmitted
    2. Breflected, rebounded and absorbed
    3. Crebounded, transmitted and infiltrated
  9. 9[blank_start]Dark[blank_end] coloured objects heat up more [blank_start]quickly[blank_end] in sunlight than lighter coloured objects. This is because they are good [blank_start]absorbers[blank_end] of radiation, whereas lighter objects [blank_start]reflect[blank_end] most of the heat and don't heat up as quickly.
    1. ADark
    2. Bquickly
    3. Cabsorbers
    4. Dreflect
  10. 10Temperature tells us how hot or cold something is.
    1. AVerdadero
    2. BFalso

Información

Descripción
A short quiz on Heat Transfer to gain an understanding of student knowledge.
Idioma
English
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