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Science Eight Chapter Four
Test Description: Science 8 Chapter 4
Instructions: Answer all questions to get your test result.
1) What happens when the amplitude of a wave becomes smaller?
A
the height of the crests increases
B
the frequency increases
C
the amount of energy that the wave carries decreases
D
the wavelength decreases
2) Which of the following statements is true?
A
the wavelength of a wave decreases as the frequency decreases
B
the wavelength of a wave decreases as the frequency stays the same
C
the wavelength of a wave increases as the frequency increases
D
the wavelength of a wave increases as the frequency decreases
3) 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
4) Which of the following colours has the lowest frequency
A
indigo
B
blue
C
red
D
orange
5) Why does a blue car appear to be blue in the sunlight?
A
the car reflects the colour blue and absorbs colours other than blue
B
the car absorbs the colour blue and reflects colours other than blue
C
the car reflects all the colours of the visible spectrum
D
the car refracts the colour blue and reflects colours other than blue
6) Why does a black cat appear to be black?
A
the cat is made up of all the the primary colours
B
the cat reflects all the colours
C
the cat is made up of all the secondary colours
D
the cat absorbs all the colours
7) Which of the following types of radiation has the highest frequency
A
infrared light
B
AM radio waves
C
visible light
D
gamma radiation
8) Which of the following is generally associated with radio waves?
A
high-energy waves
B
long-wavelength waves
C
high-frequency waves
D
visible radiation
9) Which of the following types of radiation gives off the lowest amount of energy?
A
microwaves
B
X rays
C
gamma rays
D
visible light
10) Which of the following has a higher frequency than visible light?
A
infrared waves
B
microwaves
C
X rays
D
radio waves
*select an answer for all questions
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