1. Understanding Invisible waves

2. We are constantly being bombarded by invisible waves

3. Can you think of any examples of invisible waves? Sound, light, radio, heat, cell phone, garage door opener, microwave, etc

4. All these waves belong to the same category except for … … Sound

5. The name of this category is … … Electromagnetic waves

6. What do these waves have in common? 1. They all take time to travel. 2. Once the source of a wave stops, the wave itself keeps going. 3. The distance from one peak to the next is called “wavelength”. 4. They all travel at the speed of light. 5. They all travel through space.

7. How are these waves different? They have different wavelengths. They have different properties.

8. What is the difference between these 2 sets of waves?

11. Please complete the “Understanding Invisible Waves” Worksheet

12. The End

13. What is the difference between these 2 waves?

15. Can you think of any examples of invisible waves? Sound, light, radio, heat, cell phone, garage door opener, microwave, etc What do these waves have in common? Provide at least 3 examples. 1. They all take time to travel. 2. Once the source of a wave stops, the wave itself keeps going. 3. The distance from one peak to the next is called “wavelength”. 4. With the exception of sound, they all travel at the same speed. How are these waves different? They have different wavelengths. They have different properties. Invisible waves that can travel through empty space are known as Electromagnetic Waves The most common example of this is ______________________. Invisible waves that can not travel through empty space are known as ___________________ _____________

16. Can you think of any examples of invisible waves? Sound, light, radio, heat, cell phone, garage door opener, microwave, etc What do these waves have in common? Provide at least 3 examples. 1. They all take time to travel. 2. Once the source of a wave stops, the wave itself keeps going. 3. The distance from one peak to the next is called “wavelength”. 4. With the exception of sound, they all travel at the same speed. How are these waves different? They have different wavelengths. They have different properties. Invisible waves that can travel through empty space are known as Electromagnetic Waves The most common example of this is ______________________. Invisible waves that can not travel through empty space are known as ___________________ _____________

17. Can you think of any examples of invisible waves? Sound, light, radio, heat, cell phone, garage door opener, microwave, etc What do these waves have in common? Provide at least 3 examples. 1. They all take time to travel. 2. Once the source of a wave stops, the wave itself keeps going. 3. The distance from one peak to the next is called “wavelength”. 4. With the exception of sound, they all travel at the same speed. How are these waves different? They have different wavelengths. They have different properties. Invisible waves that can travel through empty space are known as Electromagnetic Waves The most common example of this is ______________________. Invisible waves that can not travel through empty space are known as ___________________ _____________

18. Can you think of any examples of invisible waves? Sound, light, radio, heat, cell phone, garage door opener, microwave, etc What do these waves have in common? Provide at least 3 examples. 1. They all take time to travel. 2. Once the source of a wave stops, the wave itself keeps going. 3. The distance from one peak to the next is called “wavelength”. 4. With the exception of sound, they all travel at the same speed. How are these waves different? They have different wavelengths. They have different properties. Invisible waves that can travel through empty space are known as Electromagnetic Waves The most common example of this is ______________________. Invisible waves that can not travel through empty space are known as ___________________ _____________

19. Can you think of any examples of invisible waves? Sound, light, radio, heat, cell phone, garage door opener, microwave, etc What do these waves have in common? Provide at least 3 examples. 1. They all take time to travel. 2. Once the source of a wave stops, the wave itself keeps going. 3. The distance from one peak to the next is called “wavelength”. 4. With the exception of sound, they all travel at the same speed. How are these waves different? They have different wavelengths. They have different properties. Invisible waves that can travel through empty space are known as Electromagnetic Waves The most common example of this is ______________________. Invisible waves that can not travel through empty space are known as ___________________ _____________

20. Can you think of any examples of invisible waves? Sound, light, radio, heat, cell phone, garage door opener, microwave, etc What do these waves have in common? Provide at least 3 examples. 1. They all take time to travel. 2. Once the source of a wave stops, the wave itself keeps going. 3. The distance from one peak to the next is called “wavelength”. 4. With the exception of sound, they all travel at the same speed. How are these waves different? They have different wavelengths. They have different properties. Invisible waves that can travel through empty space are known as Electromagnetic Waves The most common example of this is ______________________. Invisible waves that can not travel through empty space are known as ___________________ _____________