Year 8 light quiz

1. If a boat is travelling over a wave with an amplitude of 5m, how far does it fall when it moves from crest to trough?

   
   

• 5

• 10

• 15

• 0

1. Which of the following accurately describes a wavelength?

• 1. From equilibrium to amplitude

• 1. From crest to crest

• 1. From equilibrium to crest

• 1. From trough to crest

1. Matter moves back and forth perpendicular to the direction that a wave travels in a 

• 1. Transverse wave

• Compression wave 

White light passing through a prism will emerge as all the colors you see in a rainbow. The colors of light ______________________________________ as they pass through the prism.

• reflect by the same amount

• refract by different amounts

• reflect by different amounts

• refract by the same amount

1. White light is made up of different colors of light that have

• 1. Different wavelengths, but the same frequency

• 1. Same wavelength and frequency

• 1. Different wavelengths and frequencies

• 1. The same wavelength, but different frequencies

1. When two light waves of different wavelengths are refracted

• 1. Long wavelengths (red) refract refract more

• Short wavelengths (blue violet) refract more

1. Which of the following forms of electromagnetic energy has a longer wavelength than infrared waves?

• 1. Microwaves

• 1. X-rays

• 1. Gamma 

• 1. Ultraviolet

1. The electromagnetic waves that are detectable by the human eye have

• 1. A lower frequency than infrared waves

• 1. A wavelength that falls in between ultraviolet and x-rays

• 1. A shorter wavelength than infrared waves

1. What form of electromagnetic radiation is used in radar? (Choose 2)

• 1. Short wavelength infrared waves

• 1. Short wavelength microwaves

• Long wavelength radio waves

Which of the following statements regarding x-rays is true?

• X-rays have a higher energy and a longer wavelength than visible light

• X-rays can easily pass through bone, but are absorbed by skin and muscle

• X-rays have a shorter wavelength and a higher energy than ultraviolet rays