Compléter What is Light?Version en ligne Review first part of light. par Paradiso Indra 1 1 . is a type of that moves on waves and can travel in space . 2 . waves move forward , and the energy is carried to the forward motion . 3 . A is a space devoid of matter . 4 . Light can travel through a vacuum because it does not need matter to . 5 . It takes 8 for light to reach the from the , which is more than 149 million kilometers away . 6 . We use waves to see things in the . E . g . infrared goggles , cameras , etc . 7 . have one of the wavelengths and frequency on the electromagnetic spectrum . 8 . The spectrum is a of light waves organised by and . 9 . light shines in all , but a is a beam of light the shines in only one . A laser has only one of light , but sunlight is a of different types .
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