Physical Science - Properties of Light

Why does green light slow down more than orange light does when passing through an object? Green light has longer wavelengths than orange light. Green light has fewer particles than orange light. Green light refracts less than orange light. Green light has a higher frequency than orange light.

Green light has a higher frequency than orange light.

Use the image to rank the colors from the color that will refract the least to the color that will refract the most.

Least --> Most red yellow green blue violet

Which statement best explains a difference between the interaction of light with clear glass and the interaction of light with silver metal? Light slows down when it interacts with glass but not when it interacts with metal. Light slows down when it interacts with metal but not when it interacts with glass. Most of the light passes through glass but none of the light passes through metal. Most of the light is absorbed by glass but none of the light is absorbed by metal.

Most of the light passes through glass but none of the light passes through metal.

Explain whether a red apple is opaque or transparent and why it appears red.

Sample Response: An apple is an opaque object because no light can pass through. The red apple reflects red light and absorbs all the other colors.

Which statement correctly compares the speed of light? The speed of light through space is much greater than 3 x 108 m/s. The speed of light in glass is much greater than 3 x 108 m/s. The speed of light in glass is faster than the speed of light through space. The speed of light in glass is slower than the speed of light through space.

The speed of light in glass is slower than the speed of light through space.

Which are characteristics of the speed of light? Check all that apply. The speed of light is the speed all waves travel. The speed of light is the speed electromagnetic waves travel. The speed of light is 3.0 x 108 m/s in space. The speed of light is the same in all matter. The speed of higher frequency light slows down more than lower frequency light in matter.

The speed of light is the speed electromagnetic waves travel. The speed of light is 3.0 x 108 m/s in space. The speed of higher frequency light slows down more than lower frequency light in matter.

Carla did an experiment by placing a piece of smooth, clear glass and a piece of smooth, black stone under a lamp for twenty minutes. Which prediction will most likely be supported by Carla's experimental results? The glass will feel warmer than the stone after twenty minutes. The stone will feel warmer than the glass after twenty minutes. The glass will reflect all of the light after twenty minutes. The stone will reflect all of the light after twenty minutes.

The stone will feel warmer than the glass after twenty minutes.

Juan created a chart to help him study for a test. Which headings best complete the chart? X: Transparent Objects Y: Opaque Objects X: Opaque Objects Y: Transparent Objects X: High Frequency Waves Y: Low Frequency Waves X: Low Frequency Waves Y: High Frequency Waves

X: Opaque Objects Y: Transparent Objects

Which object absorbs the most visible light? a clear bowl a white rock a black t-shirt a red apple

a black t-shirt

Which object is least likely to allow light to pass through it? a pair of eyeglasses a clear water bottle a car windshield a tree trunk

a tree trunk

The diagram shows light interacting with an object. Which object is the light most likely striking? a window a mirror a plaster wall a steel beam

a window

Isaac Newton believed that light was made of waves. particles. dust. gravity.

particles

What theory was Huygens writing about? the particle theory of light the reflection of light off objects the way objects refract light the wave theory of light

the wave theory of light

Use the drop-down menus the complete the statements about the image. The windowpanes are [-blank-]. The colors of the panes are due to the wavelengths of light that the glass [-blank-].

transparent allows to pass through

What is the distance from the peak of one wave to the peak of the next wave called? wavelength crest trough amplitude

wavelength

According to Dutch scientist Christiaan Huygens, what was light made of? atoms particles waves electrons

waves

When all the colors of light are mixed, what is the resulting color? blue red white black

white

Which objects are opaque? Check all that apply. textbook track shoes light bulb basketball lampshade

textbook track shoes basketball

Describe how electromagnetic waves are formed and travel through space.

Sample Response: Electromagnetic waves are created by a charged particle that generates an electric field. The electric field creates a magnetic field. As the charged particle moves, the electric field and magnetic field keep changing, which causes the wave to move.