FREE PHYSICAL SCIENCE AND STUDY GAMES ABOUT

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FREE PHYSICAL SCIENCE AND STUDY GAMES ABOUT

LIGHT VOCABULARY EXAM QUESTIONS

Qs and Ans Expert- Explanation

This Exam contains:

-Guarantee passing score -20 Questions and Answers -format set of multiple-choice -Expert- Explanation

Question 1: refraction

Answer:

when light enters a medium and bends

Question 2: reflection

Answer:

when light bounces off a surface

Question 3: energy

Answer:

ability to cause change (do work)

Question 4: ROYGBIV

Answer:

acronym for the colors of the rainbow: Red, Orange, Yellow, Green, Blue, Indigo and Violet

Question 5: image

Answer:

picture

Question 6: mirror

Answer:

a smooth, very reflective surface

Question 7: wavelength

Answer:

on a wave, the distance from crest to crest

Question 8: lens

Answer:

a curved piece of transparent material used to refract light

Question 9: opaque

Answer:

no light can pass through; light is reflected or absorbed

Question 10: crest

Answer:

the top or highest part of a wave.

Question 11: transparent

Answer:

light is transmitted through; the object is clear

Question 12: trough

Answer:

the bottom of a wave

Question 13: medium

Answer:

solids, liquids and gases

Question 14: visible spectrum

Answer:

part of the electromagnetic spectrum that humans can see

Question 15: translucent

Answer:

some light is transmitted, some is absorbed and some is scattered

Question 16: concave

Answer:

a surface that is curved inward (light waves are spread out)

Question 17: absorb

Answer:

to take in or swallow up (rather than transmit or reflect)

Question 18: convex

Answer:

a surface that is curved outward (light waves become focused)

Question 19: transmit

Answer:

to go through

Question 20: visible light

Answer:

energy that the human eye can see