Someone claims that carrying a cell phone in your pocket will grow cancer near that area of your leg. How could you determine whether this is valid and reliable?(1 point)

Question

Responses

Ask whether they saw that on the internet or in a physical book.
Ask whether they saw that on the internet or in a physical book.

Ask whether they have done an experiment and collected data to prove it.
Ask whether they have done an experiment and collected data to prove it.

Ask whether they know the scientific name of the cancer it causes.
Ask whether they know the scientific name of the cancer it causes.

Ask about the source of the information and what data were used.

Which factor makes the biggest difference when studying the effects of radiation on an organism?(1 point)
Responses

the duration of exposure
the duration of exposure

the frequency of the radiation
the frequency of the radiation

the number of cells exposed to the radiation
the number of cells exposed to the radiation

the size of the organism

Which correctly describes the application of the photoelectric effect on the operation of photovoltaic cells?(1 point)
Responses

Light waves striking a surface eject electrons from the innermost shell of the surface’s atoms.
Light waves striking a surface eject electrons from the innermost shell of the surface’s atoms.

The frequency of light waves striking a surface determines if electrons are released.
The frequency of light waves striking a surface determines if electrons are released.

The current generated is used to convert electrical energy into heat energy.
The current generated is used to convert electrical energy into heat energy.

The intensity of light waves striking a surface determines if electrons are released.

What features make radio waves useful for transmission?(1 point)
Responses

They are not absorbed by the atmosphere and they move fast, though under the speed of light.
They are not absorbed by the atmosphere and they move fast, though under the speed of light.

They are not absorbed by the atmosphere and they move at the speed of light.
They are not absorbed by the atmosphere and they move at the speed of light.

They are absorbed by the atmosphere and they move at the speed of light.
They are absorbed by the atmosphere and they move at the speed of light.

They are absorbed by the atmosphere and they move fast, though under the speed of light.

Compare the efficiency of solar panels to the efficiency of gasoline-powered engines.(1 point)
Responses

The efficiency of solar panels is currently around 35% compared to that of gasoline-powered engines, which is around 15%.
The efficiency of solar panels is currently around 35% compared to that of gasoline-powered engines, which is around 15%.

The efficiency of solar panels is currently around 15% compared to that of gasoline-powered engines, which is around 35%.
The efficiency of solar panels is currently around 15% compared to that of gasoline-powered engines, which is around 35%.

The efficiency of solar panels is currently around 85% compared to that of gasoline-powered engines, which is around 5%.
The efficiency of solar panels is currently around 85% compared to that of gasoline-powered engines, which is around 5%.

The efficiency of solar panels is currently around 5% compared to that of gasoline-powered engines, which is around 85%.

Identify which process of wave transfer is responsible for medical ultrasound imaging and how it is used.(1 point)
Responses

Refraction, this imaging bends high-frequency sound waves on internal organs, producing pictures of insides of the body.
Refraction, this imaging bends high-frequency sound waves on internal organs, producing pictures of insides of the body.

Reflection, this imaging bounces high-frequency sound waves off of internal organs producing pictures of insides of the body.
Reflection, this imaging bounces high-frequency sound waves off of internal organs producing pictures of insides of the body.

Reflection, this imaging bends high-frequency sound waves on internal organs, producing pictures of insides of the body.
Reflection, this imaging bends high-frequency sound waves on internal organs, producing pictures of insides of the body.

Refraction, this imaging bounces high-frequency sound waves off of internal organs producing pictures of insides of the body.

While shopping for light bulbs, which information would describe the efficiency of the bulb?(1 point)
Responses

what color of light is produced by the bulb
what color of light is produced by the bulb

how much the bulb costs
how much the bulb costs

how many watts of power the bulb uses
how many watts of power the bulb uses

how many lumens, or brightness, the bulb has

Answer 1

Here are the answers to each of your questions based on the provided options:

1. Someone claims that carrying a cell phone in your pocket will grow cancer near that area of your leg. How could you determine whether this is valid and reliable?

   • Correct Answer: Ask about the source of the information and what data were used.

2. Which factor makes the biggest difference when studying the effects of radiation on an organism?

   • Correct Answer: the duration of exposure

3. Which correctly describes the application of the photoelectric effect on the operation of photovoltaic cells?

   • Correct Answer: The frequency of light waves striking a surface determines if electrons are released.

4. What features make radio waves useful for transmission?

   • Correct Answer: They are not absorbed by the atmosphere and they move at the speed of light.

5. Compare the efficiency of solar panels to the efficiency of gasoline-powered engines.

   • Correct Answer: The efficiency of solar panels is currently around 35% compared to that of gasoline-powered engines, which is around 15%.

6. Identify which process of wave transfer is responsible for medical ultrasound imaging and how it is used.

   • Correct Answer: Reflection, this imaging bounces high-frequency sound waves off of internal organs producing pictures of insides of the body.

7. While shopping for light bulbs, which information would describe the efficiency of the bulb?

   • Correct Answer: how many lumens, or brightness, the bulb has

Let me know if you need further assistance or explanations!