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Physics — Intermediate

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IntermediateScience
Today's questions

Today's quiz questions

These are the questions that make up today's quiz. Test your knowledge, see how much you know, and learn from the explanation behind every answer.

  1. 1.What is the acceleration due to gravity at Earth's surface?

    • •12 m/s²
    • •8.5 m/s²
    • •10.5 m/s²
    • •9.8 m/s²

  2. 2.What is resonance in physics?

    • •Driving a system at its natural frequency, producing large oscillations
    • •The reflection of waves from parallel surfaces
    • •The absorption of all frequencies of light by an object
    • •The echo of sound in enclosed spaces

  3. 3.What is polarization of light?

    • •The redirection of light upon hitting a surface
    • •The restriction of light waves to vibrate in a single plane
    • •The splitting of light into multiple beams
    • •The absorption of light by a colored filter

  4. 4.What is the formula for kinetic energy?

    • •ma
    • •mgh
    • •mv
    • •½mv²

  5. 5.What type of wave is sound?

    • •Transverse wave
    • •Standing wave
    • •Longitudinal mechanical wave
    • •Electromagnetic wave

  6. 6.Which principle states that it is impossible to know a particle's exact position and velocity simultaneously?

    • •Heisenberg's uncertainty principle
    • •Superposition principle
    • •Bohr's complementarity principle
    • •Pauli exclusion principle

  7. 7.What is the photoelectric effect?

    • •The emission of light from electrically charged gases
    • •The emission of electrons from a material when light shines on it
    • •The conversion of light into heat energy in dark surfaces
    • •The generation of electricity by solar panels through chemical reactions

  8. 8.What is the difference between elastic and inelastic collisions?

    • •Momentum is conserved in elastic but not inelastic collisions
    • •Elastic collisions occur between soft objects; inelastic between hard objects
    • •Elastic collisions conserve kinetic energy; inelastic ones do not
    • •In elastic collisions, objects bounce apart; in inelastic, they always stick together

  9. 9.What is a semiconductor?

    • •A material with conductivity between a conductor and an insulator
    • •A material that only conducts electricity at high temperatures
    • •A conductor that has been partially insulated
    • •A material that conducts electricity in only one direction

  10. 10.What does the ampere (A) measure?

    • •Power
    • •Electric current intensity
    • •Voltage
    • •Electrical resistance