About This Chapter
Understanding Energy, Current & Frequency - Chapter Summary
Give yourself the additional study help you need by going through this chapter on energy, current, and frequency. The individual lessons help you gain a deeper understanding of such topics as light bulbs, electrical circuits, the radio spectrum, and electromagnetic waves. By completing the entire chapter, you will be prepared to:
- Describe individual light bulb parts
- Identify the differences between light bulb voltage and watts
- Read graphs that show different volumes of sounds
- Define the properties of electric currents
- Show the hotspots in a microwave oven
- Compare ranges of radio frequency
You can easily verify how well you understand this chapter by answering the lesson quizzes. There is a quiz available for every lesson, and you can take the quizzes before or after you have reviewed the lesson materials. The multiple-choice questions mimic those questions found on typical science exams. The quizzes can be repeated as many times as needed, which may help you further commit these science facts to memory.
1. Parts of a Light Bulb: Lesson for Kids
When daylight starts to fade, you turn on lights in your house so you can see. In this lesson, learn about the parts of the invention that help you see at night, the light bulb.
2. Light Bulbs: Watts & Voltage
In this lesson, you will learn what volts and watts mean, especially when used to describe a type of light bulb. You will also review what is meant by an electrical current.
3. Interpreting Graphs of Sounds of Different Loudness
You can tell people a lot about the sounds that you hear with your own ears, but can you do the same thing just by looking at a graph? Come and learn how to impress your friends by interpreting graphs of sounds of different loudness in this lesson.
4. Electric Current Lesson for Kids
Electricity is used in all aspects of your daily life, from powering your computers to your refrigerator. Have you ever actually wondered how electricity works? In order for electricity to happen, we must have electrical currents. Let's learn how electric currents travel through circuits and give us electricity.
5. Microwave Oven Hotspots: Lesson for Kids
Learn about why some places in your microwave oven are hotter or colder, and use the definition of frequency and wavelength to predict their locations! Perform an experiment to measure the speed of light in your kitchen.
6. Radio Frequency Ranges: Lesson for Kids
Different radio frequencies are useful for different things. For example, some are used to send TV signals, while others are used for AM radio. Learn about the different radio frequency bands in this lesson.
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