Energy Practice Questions 8th Question Preview (ID: 39061)


Energy And Energy Transformations.[print questions]

Which of the following describes an apparent shift in the frequency of light emitted by a light source that is moving toward or away from an observer?
a) Doppler Effect
b) Law of Energy
c) Radiant Effects
d)

Which of the following is a practically a part of the electromagnetic spectrum?
a) Stethoscope
b) X-Ray
c) Seismograph
d)

What happens when a waves frequency decreases?
a) Wavelength increases
b) Wavelength decreases
c) Wavelength blows up
d) Wavelength remains the same

Which property of a sound wave changes when the speed of the vibration increases?
a) Amplitude
b) Decibels
c) Frequency
d)

In which of the following situations will sound waves echo?
a) Bobby yells down the hall, the sound reflects off the hall walls and travels back to him
b) Bobby yells in the sky, the sound reflects off the clouds and travels back to him
c) Bobby yells down the hall, the sound is absorbed by the walls.
d) Bobby yells in the sky, the sound absorbs into the clouds.

A student claims that electrical energy is being transformed to thermal energy. Which of the following statements best supports the students claim?
a) Particles in the burner vibrate more causing the burner to change from black to red
b) Stove is plugged into an outlet and if a pan with ice is placed on the stove, the ice will melt
c)
d)

While listening to your favorite song, you get an Emergency Alert on your phone with a very high frequency, what would happen to the wave that it would produce?
a) More waves are being produced
b) Less waves are being produced
c)
d)

What happens when light shines on a car and you see the car as being red?
a) Red light is being reflected off the car to your eyes
b) White light is being reflected from the car to your eyes.
c) Red light is being diffracted from the car to your eyes.
d) White light is being diffracted from the car to your eyes

Which of the following is true?
a) As frequency goes up, Energy goes up, wavelength goes down
b) As frequency goes up, energy goes up, wavelength goes down
c) As frequency goes down, Energy goes down, wavelength down
d)

When light changes speed and bends as it goes through another medium is called?
a) Reflection
b) Refraction
c)
d)

An echo is an example of:
a) Reflection
b) Refraction
c)
d)

Sound travels fastest through
a) Solids
b) Liquids
c) Gases
d)

Which color has the highest frequency?
a) Red
b) Violet
c) Blue
d)

When white light is shined through a prism it produces a rainbow. This is a form of _____________.
a) Reflection
b) Refraction
c)
d)

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