Question

Which type of wave can travel through a vacuum?





Can mechanical waves, like sound waves travel through the vacuum of space?





Note- Earthquakes create seismic waves that travel through the ground. The strength of the seismic waves is measured with a seismograph.














Lesson 9: Energy in Waves
What is the objective of this lesson?



Frequency and energy are directly related. The higher the frequency of a wave, the more energy it has.

Answer Question #2 on page 3- What is the unit used for measuring frequency and what does it mean?

please make your answers short and simple sentences

Answers

GPT-4o mini
**Which type of wave can travel through a vacuum?**
Electromagnetic waves can travel through a vacuum.

**Can mechanical waves, like sound waves, travel through the vacuum of space?**
No, mechanical waves cannot travel through a vacuum. They need a medium, like air or water.

**What is the objective of this lesson?**
The objective is to understand energy in waves and the relationship between frequency and energy.

**What is the unit used for measuring frequency, and what does it mean?**
The unit for measuring frequency is Hertz (Hz). It means the number of cycles per second.