Other questions in this quiz

2. State the condition needed for maximum diffraction.

  • When the gap is the same width as the wavelength of the wave passing through it
  • As waves pass through a gap or an opening, the edges spread out

3. On a thermogram of two objects, one appears blue in colour, and the other one is yellow. Which object is giving out the most heat energy?

  • Yellow
  • Blue

4. Deforestation contributes to global warming. True of False?

  • True - reduces the amount of oxygen in the air and more carbon dioxide stays in the atmosphere rather than being taken away by trees, when they photosynthesise.
  • False

5. Name the useful energies produced by a television.

  • Light and sound
  • Heat energy
  • Electrical energy



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