Sound, Energy, And Electricity Flashcards
(16 cards)
What is the relationship between amplitude and loudness?
higher amplitude results in louder sounds. Lower amplitude result in less loud sounds
What is the relationship between frequency and pitch?
higher frequency results in higher pitch sounds.
What is constructive interference in sound waves?
Constructive interference occurs when two sound waves combine to make a louder sound.
What is destructive interference in sound waves?
Destructive interference occurs when two sound waves combine to cancel each other out.
What is the principle of energy conservation?
The principle of energy conservation states that energy cannot be created or destroyed, only transformed.
What are renewable energy sources? Give examples.
Renewable energy sources are those that can be replenished naturally, such as solar, wind, and hydro.
What are non-renewable energy sources? Give examples.
Non-renewable energy sources are those that cannot be replenished quickly, such as coal, oil, and gas.
What are the advantages of renewable energy sources?
Renewable energy sources are sustainable and have a lower environmental impact.
What are the disadvantages of non-renewable energy sources?
Non-renewable energy sources can lead to pollution and are finite resources.
What components are used in building circuits?
Components include cells, switches, lamps, resistors, and measuring devices.
How do you measure current and voltage in circuits?
Current and voltage can be measured using ammeters and voltmeters in series and parallel circuits.
What is Ohm’s Law?
Ohm’s Law states that resistance (R) is equal to voltage (V) divided by current (I): R = V ÷ I.
What is frequency?
Frequency is how many complete waves there are per second passing a certain point. The frequency indicates the rate of pressure variations or cycles per second of a wave. Frequency is measured in Hertz.
What is pitch?
position of a single sound in the complete range of sound
What are the different types of concepts (sound)
Amplitude: Height of wave - linked to loudness
Frequency: Number of waves per second - linked to pitch
High amplitude: Loud sound
High frequency: High-pitched sound
Constructive interference: Waves combine to make sound louder
Destructive interference: Waves cancel each other - sound gets quieter or silent
What are the effects of putting cells and lamps in circuits?
🔋 Adding Cells
• In Series: The total voltage increases, which increases the current if resistance stays the same. This makes components like lamps brighter.
• In Parallel: The voltage stays the same, but the cells last longer because they share the load.
💡 Adding Lamps
• In Series: Adding more lamps increases the resistance, so the current decreases and the lamps get dimmer.
• In Parallel: Each lamp gets full voltage and stays bright, while the total current increases with each added lamp.
