Other questions in this quiz

2. Name the useful energies produced by a television.

  • Electrical energy
  • Light and sound
  • Heat energy

3. 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

4. State the units of temperature and heat energy.

  • Degrees celsius and joules
  • Energy

5. 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




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