Science Eight Chapter Four Question Preview (ID: 4197)


Science 8 Chapter 4. TEACHERS: click here for quick copy question ID numbers.

What happens when the amplitude of a wave becomes smaller?
a) the frequency increases
b) the wavelength decreases
c) the height of the crests increases
d) the amount of energy that the wave carries decreases

Which of the following statements is true?
a) the wavelength of a wave increases as the frequency increases
b) the wavelength of a wave increases as the frequency decreases
c) the wavelength of a wave decreases as the frequency decreases
d) the wavelength of a wave decreases as the frequency stays the same

Which of the following statements is true?
a) white light has no colours in it
b) sunlight emits only yellow light
c) there are six colours in the rainbow
d) you can see the colours of the rainbow when sunlight is refracted

Which of the following colours has the lowest frequency
a) blue
b) indigo
c) orange
d) red

Why does a blue car appear to be blue in the sunlight?
a) the car reflects all the colours of the visible spectrum
b) the car absorbs the colour blue and reflects colours other than blue
c) the car refracts the colour blue and reflects colours other than blue
d) the car reflects the colour blue and absorbs colours other than blue

Why does a black cat appear to be black?
a) the cat reflects all the colours
b) the cat absorbs all the colours
c) the cat is made up of all the the primary colours
d) the cat is made up of all the secondary colours

Which of the following types of radiation has the highest frequency
a) visible light
b) infrared light
c) AM radio waves
d) gamma radiation

Which of the following is generally associated with radio waves?
a) visible radiation
b) high-energy waves
c) high-frequency waves
d) long-wavelength waves

Which of the following types of radiation gives off the lowest amount of energy?
a) X rays
b) visible light
c) microwaves
d) gamma rays

Which of the following has a higher frequency than visible light?
a) infrared waves
b) X rays
c) microwaves
d) radio waves

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