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Preguntas del test (21)
1Describe the relationship between Energy, Work, and Power. Check all that apply.
- APower is defined as work done per unit time.
- BEnergy is work divided by mass and time.
- CEnergy is the capacity to do work.
- DWork is energy transformed into a movement rate.
- EPower is work in the form of latent energy.
2What is Light?
- ARadiant energy that is capable of exciting the retina and producing a visual sensation.
- BThermal energy that passes through the retina and creates what we know as light.
- CLatent energy that bounces off of the retina before creating a visual sensation.
- DKinetic energy that occurs when the sun lets off some steam and it travels around before finally stopping on earth to create a little thing we know and love, light.
3Describe the difference between radiometric and photometric measurement.
- ARadiometry measures electromagnetic radiation including visible light, while photometry measures the effects of visible light.
- BPhotometry measures electromagnetic radiation including visible light, while radiometry measures the effects of visible light.
- CRadiometry measures radiation, while photometry measures the amount of light in a given frame.
- DPhotometry measures electromagnetic radiation including visible light, while radiometry measures only radiation.
4Describe photometry and what it measures:
- AA characterization of light's interaction with the human eye. It measures the effects of visible light.
- BA characterization of light's interaction with the human eye. It measures the light efficacy.
- CHow light interacts with it's surroundings. It measures the effects of visible light.
- DHow light interacts with it's surroundings. It measures the light efficacy.
5What does radiometry measure?
- AIt measures electromagnetic radiation including visible light.
- BIt measures the effects of visible light.
- CIt measures how far radio waves can travel.
- DIt measures how often your microwave emits toxic radiation.
6What is the difference between Luminance and Illuminance?
- AIlluminance is the light emitted per unit of space and Luminance is the measure of light intensity on a surface.
- BIlluminance is the measure of light intensity on a surface and Luminance is the light emitted per unit of space.
- CIlluminance is measure the amount of light that we get during the day and Luminance measures the amount we get during the night.
- DIlluminance is measure the amount of light that we get during the night and Luminance measures the amount we get during the day.
7What is Luminance?
- AThe measure of light intensity on a surface.
- BThe light emitted per unit of space.
- CThe measure of light we get during the day.
- DThe measure of light we get at night.
8What is Illuminance?
- AThe light emitted per unit of space.
- BThe measure of light intensity on a surface.
- CThe measure of light during the day.
- DThe measure of light during the night.
9What is Luminous Intensity?
- AMeasure of the wavelength weighted power emitted by a light source in a specific direction.
- BMeasure of how harsh the light can become during the day time.
- CMeasure of light wavelengths depending on a certain time of day and where the light source is.
- DMeasure of how much time it takes for light to decay.
10What is a candela?
- AUnit of measurement for intensity of light.
- BUnit of measurement for intensity of sound.
- CUnit of measurement for intensity of wind.
- DLiterally no one cares.
11How do we measure Lumens and Lux.
- AUsing an integration sphere.
- BYou don't, they measure you. For that one new suit you need for that interview. They're considerate that way.
- CBy measuring the total latent energy that light contains.
- DBy using a water bottle on a sunny day.
12What is the Inverse Square Law?
- AThe energy twice as far from the square is spread over 4x the area, hence 1/4 the intensity.
- BThe energy twice as far from the square is spread over 2x the area, hence 1/4 the intensity.
- CThe energy as far from the square is spread over 4x the area, hence 1/8 the intensity.
- DThe energy as far from the square is spread over toast, hence 1/4 the tastiness.
13How are Illuminance levels and Illuminance categories used?
- ATo differentiate the differences in the required light for spaces.
- BTo differentiate the amount of light that we get during the night and day.
- CTo help compare the required light for spaces.
- DTo help compare the amount of light that we get during night and day.
14What is Color Temperature? How is it measured?
- ABlack body is heated and they measure the color radiance based off of heat.
- BIt is the hue of the color and it is measured with love.
- CIt is the radiance of color and is measured based off of how much heat it attracts.
- DColor temperature is love with light and measured in hugs.
15How does wavelength affect color?
- AChanges in the wavelength affect how the retina visualizes it.
- BIt doesn't.
- CThe wavelength reflects how much color that we can see in one eye.
- DWhen the wavelength ends color becomes invisible.
16How is a “candela curve” plotted?
- AUsing data of how light travels from a fixed point in reference to specific angles.
- BIt uses data of radiance and references them in certain angles.
- CUsing data of thermal heat from a fixed point in reference to angles.
- DIt plots itself after data of light is inserted into a data table.
17What are the different categories of Reflectance?
- AMirror Reflectance
- BSpecular Reflection
- CDiffuse Reflection
- DFluorescence Refection
- EAbsorption Reflection
18What is Luminious Transmittance?
- AIt is the ratio of transmitted light to incident light.
- BIt is when light hits a surface and that scatters in multiple directions.
- CIt is when light and glass interact.
- DIt is when light is transmitted to various places during the night.
19The Angle of Incidence is the angle in relation to the normal on the surface. On a glazed surface some of the light is transmitted through the surface, while some of it is reflected off.
- AVerdadero
- BFalso
20What is the difference between specular and diffuse reflection?
- ASpecular reflection bounces light off in the same direction and is concentrated in a direction, while diffuse reflection bounces light all around.
- BSpecular reflection is when light hits a surface and then travels faster, while diffuse reflection is when the light will hit a surface and travel slower.
- CSpecular reflection is when the light reflects during the daytime, while diffuse reflection is at nighttime.
- DSpecular reflection is when light does not know where to travel after hitting a surface, while diffuse reflection is light traveling beyond the surface that it hits.
21How do material finishes alter the different categories of Reflectance?
- AThe texture of the material can change the angle of reflectance. For example, a rougher finish will cause a diffuse reflectance while a flat surface will cause a specular reflectance.
- BThe texture of material can change the way that the light settles on a surface. For example, a soft finish will invite the light and it will stay for tea, while a hard surface will make the light not want to stay for tea time.
- CThe texture of the material can change the way that light interacts. For example, a shiny surface will result in the reflectance gaining thermal energy, while a dull surface with result in the gain of nuclear energy.
- DThe texture of material can change the angle of altitude. For example, if the light hits above a certain height it will not reflect downwards, but if it hits below a certain height it will only reflect upwards.
Información
- Descripción
- Study questions from lectures.
- Autor
- Nicky Dolezal
- Idioma
- English
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- 48
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