Podcast
Questions and Answers
What produces a changing magnetic field according to the wave model?
What produces a changing magnetic field according to the wave model?
- A negatively charged particle
- An accelerating charge (correct)
- A positively charged particle
- A stationary charge
What causes the delay in the predicted occurrence of Io’s eclipse, as recognized by Christian Huygens?
What causes the delay in the predicted occurrence of Io’s eclipse, as recognized by Christian Huygens?
- Decrease in Earth’s distance from Jupiter over 6 months
- The eclipse of Jupiter’s moon, Europa
- Ole Roemer’s miscalculation
- Increase in Earth’s distance from Jupiter over 6 months (correct)
What moves away from the source of the accelerating charge at the speed of light?
What moves away from the source of the accelerating charge at the speed of light?
- Mutually induced electric and magnetic fields (correct)
- Static electric field
- Magnetic field only
- Electric field only
What did Christian Huygens use to measure the speed of EMR?
What did Christian Huygens use to measure the speed of EMR?
What are the changing electric and magnetic fields that travel as waves called?
What are the changing electric and magnetic fields that travel as waves called?
What is the reason that the waves are called electromagnetic waves?
What is the reason that the waves are called electromagnetic waves?
What did Christian Huygens use to measure the speed of EMR?
What did Christian Huygens use to measure the speed of EMR?
What produces a changing magnetic field according to the wave model?
What produces a changing magnetic field according to the wave model?
What moves away from the source of the accelerating charge at the speed of light?
What moves away from the source of the accelerating charge at the speed of light?
What causes the delay in the predicted occurrence of Io’s eclipse, as recognized by Christian Huygens?
What causes the delay in the predicted occurrence of Io’s eclipse, as recognized by Christian Huygens?
Flashcards are hidden until you start studying
Study Notes
Electromagnetic Waves
- An accelerating charge produces a changing magnetic field according to the wave model.
- The delay in the predicted occurrence of Io's eclipse is caused by the finite speed of light, recognized by Christian Huygens.
- Electromagnetic radiation (EMR) moves away from the source of the accelerating charge at the speed of light.
- Christian Huygens used Ole Rømer's method of observing the eclipses of Io to measure the speed of EMR.
- Changing electric and magnetic fields that travel as waves are called electromagnetic waves.
- The reason they are called electromagnetic waves is because they consist of electric and magnetic fields that oscillate at right angles to each other and to the direction of propagation.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
