Other questions in this quiz

2. According to the Big Bang Theory,what is the composition of the universe?

  • Hydrogen ( approx 75%) and helium ( approx 25%) and small quantities of light elements
  • Hydrogen ( approx 35%) and helium ( approx 65%) and small quantities of light elements

3. How do stars produce energy?

  • Nuclear fusion of hydrogen
  • Nuclear fission of helium

4. Define longitudinal waves

  • Vibrations are parallel to direction of wave motion
  • Vibrations are vertical to the direction of wave motion

5. Why is voltage induced when a wire is moved through a magnetic field?

  • Field lines are being cut
  • the current increases

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