Predict: How resonance can cause earthquakes to do greater damage to some buildings than others.
Analyze: If two astronauts were able to go on a space walk without wearing suits. Explain why they would not be able to talk to one another.
Describe: How could you use interference to make a wave smaller in amplitude. Give a real world example.
Please help me!! I'm lost!
I can help you with your questions! Here are the step-by-step explanations for each question:
1. Predict: How resonance can cause earthquakes to do greater damage to some buildings than others.
Research has shown that resonance can amplify the shaking of buildings during an earthquake, causing some structures to experience greater damage than others. Here's a step-by-step breakdown of how this happens:
Step 1: Resonance occurs when the natural frequency of a building matches the frequency of seismic waves generated by an earthquake.
Step 2: When seismic waves with a frequency that matches the building's natural frequency reach the structure, they cause the building to vibrate more vigorously.
Step 3: These amplified vibrations can lead to significant damage and structural failure in buildings that are not designed to withstand such levels of shaking.
Step 4: Buildings that are either stiffer or more flexible than the resonance frequency are less likely to experience resonance and, consequently, may suffer lesser damage during an earthquake.
2. Analyze: If two astronauts were able to go on a spacewalk without wearing suits, explain why they would not be able to talk to one another.
When astronauts go on a spacewalk, they wear spacesuits that include helmets with built-in communication systems. Without these suits, communication would be hindered due to the following reasons:
Step 1: In a vacuum environment like outer space, sound waves cannot propagate or travel through air as they do on Earth.
Step 2: Sound waves require a medium such as air, water, or solids to travel. In the absence of a medium, sound cannot be transmitted.
Step 3: Without spacesuits, the astronauts would not have a medium for sound waves to travel through, rendering verbal communication ineffective.
Step 4: Additionally, in space, there is no atmosphere to act as a medium for carrying sound waves between the astronauts' mouths and ears, further preventing them from hearing each other.
3. Describe: How could you use interference to make a wave smaller in amplitude? Give a real-world example.
Interference occurs when two waves combine, resulting in either constructive interference (amplification) or destructive interference (attenuation). To use constructive interference to decrease the amplitude of a wave, follow these steps:
Step 1: Generate two waves of the same frequency and amplitude.
Step 2: Position the waves so that they are 180 degrees out of phase, or in other words, their peaks and troughs are aligned.
Step 3: When the waves combine, they undergo destructive interference, which can result in a wave with a smaller amplitude.
Real-world example: Noise-canceling headphones utilize destructive interference to reduce external noise. These headphones have built-in microphones that capture the sound waves from the outside environment. The headphones' electronics then generate sound waves that are 180 degrees out of phase with the incoming sound waves. As a result, the two waves cancel each other out, effectively reducing the amplitude of the ambient noise and creating a quieter listening experience for the user.
No problem! I'll be glad to help you with your questions. Let's take them one by one.
1. Predict: How resonance can cause earthquakes to do greater damage to some buildings than others.
Resonance can cause earthquakes to do greater damage to some buildings than others due to the different natural frequencies of the buildings. When an earthquake occurs, it generates seismic waves that travel through the ground. If the frequency of the seismic waves matches the natural frequency of a building, resonance can occur. This results in the building vibrating more strongly, causing greater damage, as the energy of the earthquake is absorbed and amplified by the building's vibrations.
To predict the impact of resonance on buildings during an earthquake, you would need to consider the natural frequencies and structural properties of the buildings in question. This can involve understanding the materials used, the design of the building, and any potential weak points that could be prone to resonance effects.
2. Analyze: If two astronauts were able to go on a spacewalk without wearing suits, explain why they would not be able to talk to one another.
In the vacuum of space, without a spacesuit, astronauts would not be able to talk to each other due to the absence of air or any medium to carry sound waves. Sound waves require a medium, such as air, water, or solids, to travel and be detected by our ears. In space, the lack of air would prevent the transmission of sound waves. Therefore, even if the astronauts tried to communicate verbally, their voices would not be carried to one another, and they would not be able to hear each other either.
To analyze why astronauts cannot talk to each other in space without suits, you would need to understand the properties of sound waves and how they require a medium to propagate.
3. Describe: How could you use interference to make a wave smaller in amplitude. Give a real-world example.
Interference occurs when two or more waves meet and interact with each other. Depending on the type of interference, waves can either combine to create a larger amplitude (constructive interference) or reduce their amplitude (destructive interference).
To make a wave smaller in amplitude using interference, you would need to create a situation of destructive interference. This occurs when the peaks and troughs of two waves align, causing them to cancel each other out or reduce their amplitudes.
A real-world example of interference causing a wave to become smaller in amplitude is noise-canceling headphones. These headphones work by emitting sound waves with the opposite amplitude and frequency compared to the ambient noise. When these waves meet the incoming noise, they interfere destructively, reducing the amplitude of the noise wave and effectively canceling out the unwanted sound.
To utilize interference to make a wave smaller in amplitude, you would need to understand the principles of interference and how to create a situation of destructive interference. This can involve manipulating the properties of the waves or using devices specifically designed to generate waves with opposite amplitudes.