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Questions and Answers
What is the difference between a conductor and an insulator?
What is the difference between a conductor and an insulator?
- Conductors and insulators both allow electric charges to flow through them easily
- Insulators allow electric charges to flow through them easily, while conductors do not
- Conductors allow electric charges to flow through them easily, while insulators do not (correct)
- Conductors and insulators both do not allow electric charges to flow through them easily
Which of the following statements about the photoelectric effect is true?
Which of the following statements about the photoelectric effect is true?
- Electrons are emitted from the metal surface due to collisions with photons
- The intensity of light affects the kinetic energy of the emitted electrons
- Only photons with energies above a certain threshold can cause electrons to be emitted from a metal surface (correct)
- The frequency of light affects the number of electrons emitted
What is the difference between elastic and inelastic collisions?
What is the difference between elastic and inelastic collisions?
- In inelastic collisions, objects stick together after colliding, while in elastic collisions, they bounce off each other
- In elastic collisions, kinetic energy is conserved, while in inelastic collisions, it is not (correct)
- In inelastic collisions, momentum is conserved, while in elastic collisions, it is not
- In elastic collisions, objects stick together after colliding, while in inelastic collisions, they bounce off each other
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