Light Waves Review

Light is a (an) _______.

• Mechanical wave

• Electromagnetic wave

• Surface wave

• Standing wave

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Light combines a ____ field with an ____ field at a perpendicular angle.

• force, electromagnetic

• force, electric

• magnetic, electromagnetic

• magnetic, electric

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What is the equation for the speed of light?

• Speed= wavelength x frequency

• Speed= distance/time

• Speed= distance x time

• Speed= wavelength/frequency

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Calculate. If the distance from the sun to 228,000,000 million kilometers. Calculate the time it takes for light to travel this distance. Use this equation: Time= Distance/Speed. Recall Speed of light= 300,000 km/s.

• 6.84 x 10 ^ 13 secs

• 0.01 secs

• 760 secs

• 1.47 x 10 ^-6 secs

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This category on the EM spectrum warms your body on a sunny day.

• Infrared

• Gamma rays

• Microwaves

• X-rays

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The waves with the shortest wavelengths are _______.

• Radio waves

• Gamma rays

• Microwaves

• X-rays

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waves created by vibrating electric charges; consists of vibrating electric and magnetic fields, and can travel through a vacuum or through matter

• Radiation

• Mechanical wave

• Electromagnetic wave

• Reflection

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transfer of energy by electromagnetic waves

• Electromagnetic waves

• Reflection

• Absorption

• Radiation

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is the range of all types of energy waves that travel in space

• Electromagnetic spectrum

• Electromagnetic waves

• Radiation

• Refraction

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when light bounces off an object

• Refraction

• Absorption

• Reflection

• Diffraction

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