Question
Why are so many components in electronic devices contained inside materials like rubber and plastic?(1 point)
Responses
Rubber and plastic are good thermal insulators.
Rubber and plastic are good thermal insulators.
Rubber and plastic are good thermal conductors.
Rubber and plastic are good thermal conductors.
Rubber and plastic are good electrical conductors.
Rubber and plastic are good electrical conductors.
Rubber and plastic are good electrical insulators.
In what way have satellites contributed the greatest improvements to communication?(1 point)
Responses
They allow analog signals to be turned into digital signals.
They allow analog signals to be turned into digital signals.
They allow communication beyond the ionosphere.
They allow communication beyond the ionosphere.
They allow communication between locations that are not within a line of sight.
They allow communication between locations that are not within a line of sight.
They allow transmissions to move through space rather than through air.
They allow transmissions to move through space rather than through air.
What is the function of a transducer?(1 point)
Responses
It converts one form of energy into another.
It converts one form of energy into another.
It provides a code that can be sent through the air.
It provides a code that can be sent through the air.
It protects cell phone data from being stolen.
It protects cell phone data from being stolen.
It changes the features of electromagnetic signals.
How do radio transmitters get around the line-of-sight limitation?(1 point)
Responses
They use high-frequency radio waves that can penetrate the ionosphere.
They use high-frequency radio waves that can penetrate the ionosphere.
They use wired transmission to move around barriers.
They use wired transmission to move around barriers.
They use gravity to carry the waves around Earth’s curved surface.
They use gravity to carry the waves around Earth’s curved surface.
They bounce medium frequency radio waves off the charged ionosphere.
They bounce medium frequency radio waves off the charged ionosphere.
The ionosphere is an atmospheric layer of charged particles around Earth. Which statement about the ionosphere is FALSE?(1 point)
Responses
The lower the frequency of the radio wave, the lower the level of the ionosphere where the wave is reflected.
The lower the frequency of the radio wave, the lower the level of the ionosphere where the wave is reflected.
The ionosphere lets visible light pass through.
The ionosphere lets visible light pass through.
All forms of electromagnetic waves can penetrate the ionosphere.
All forms of electromagnetic waves can penetrate the ionosphere.
The height of the ionosphere above Earth’s surface changes from day to night.
Responses
Rubber and plastic are good thermal insulators.
Rubber and plastic are good thermal insulators.
Rubber and plastic are good thermal conductors.
Rubber and plastic are good thermal conductors.
Rubber and plastic are good electrical conductors.
Rubber and plastic are good electrical conductors.
Rubber and plastic are good electrical insulators.
In what way have satellites contributed the greatest improvements to communication?(1 point)
Responses
They allow analog signals to be turned into digital signals.
They allow analog signals to be turned into digital signals.
They allow communication beyond the ionosphere.
They allow communication beyond the ionosphere.
They allow communication between locations that are not within a line of sight.
They allow communication between locations that are not within a line of sight.
They allow transmissions to move through space rather than through air.
They allow transmissions to move through space rather than through air.
What is the function of a transducer?(1 point)
Responses
It converts one form of energy into another.
It converts one form of energy into another.
It provides a code that can be sent through the air.
It provides a code that can be sent through the air.
It protects cell phone data from being stolen.
It protects cell phone data from being stolen.
It changes the features of electromagnetic signals.
How do radio transmitters get around the line-of-sight limitation?(1 point)
Responses
They use high-frequency radio waves that can penetrate the ionosphere.
They use high-frequency radio waves that can penetrate the ionosphere.
They use wired transmission to move around barriers.
They use wired transmission to move around barriers.
They use gravity to carry the waves around Earth’s curved surface.
They use gravity to carry the waves around Earth’s curved surface.
They bounce medium frequency radio waves off the charged ionosphere.
They bounce medium frequency radio waves off the charged ionosphere.
The ionosphere is an atmospheric layer of charged particles around Earth. Which statement about the ionosphere is FALSE?(1 point)
Responses
The lower the frequency of the radio wave, the lower the level of the ionosphere where the wave is reflected.
The lower the frequency of the radio wave, the lower the level of the ionosphere where the wave is reflected.
The ionosphere lets visible light pass through.
The ionosphere lets visible light pass through.
All forms of electromagnetic waves can penetrate the ionosphere.
All forms of electromagnetic waves can penetrate the ionosphere.
The height of the ionosphere above Earth’s surface changes from day to night.
Answers
GPT-4o mini
1. **Why are so many components in electronic devices contained inside materials like rubber and plastic?**
- **Response:** Rubber and plastic are good electrical insulators.
2. **In what way have satellites contributed the greatest improvements to communication?**
- **Response:** They allow communication between locations that are not within a line of sight.
3. **What is the function of a transducer?**
- **Response:** It converts one form of energy into another.
4. **How do radio transmitters get around the line-of-sight limitation?**
- **Response:** They bounce medium frequency radio waves off the charged ionosphere.
5. **Which statement about the ionosphere is FALSE?**
- **Response:** All forms of electromagnetic waves can penetrate the ionosphere.
- **Response:** Rubber and plastic are good electrical insulators.
2. **In what way have satellites contributed the greatest improvements to communication?**
- **Response:** They allow communication between locations that are not within a line of sight.
3. **What is the function of a transducer?**
- **Response:** It converts one form of energy into another.
4. **How do radio transmitters get around the line-of-sight limitation?**
- **Response:** They bounce medium frequency radio waves off the charged ionosphere.
5. **Which statement about the ionosphere is FALSE?**
- **Response:** All forms of electromagnetic waves can penetrate the ionosphere.