1) Light travels... a) in a straight line from its source. b) in a bent line. c) from the eyes. d) I'm not sure. 2) Light _________ as it hits a mirror. a) bends b) reflects c) refracts 3) Light travels at... a) 3, 000, 000 metres per seconds. b) 3, 000 metres per second. c) 300, 000, 000 metres per second. d) I'm not sure. 4) A shadow is a reflection. a) True b) False 5) Why would the shadow get larger if the fish was moved closer to the light source? a) The shadow would get larger because light travels in straight lines and has a larger angle to make it past the object. b) The shadow would get larger because light has to get around the opaque object. c) The shadow would get larger because light source is stronger the closer you get to it. d) I'm not sure. 6) What does this diagram show? a) Light turning into a rainbow? b) White light being split into the visible spectrum. c) A prism and lots of colours. d) I'm not sure. 7) White light is... a) a mixture of all known colours. b) colourless light that contains the colours of the visible spectrum. c) light that doesn't contain impurities. 8) What colours are in the visible spectrum? a) Red - Orange - Yellow - Green - Blue - Indigo - Violet. b) Red - Black - White - Orange - Green - Yellow - Blue. c) Red - Green - Violet - Orange - White- Blue - Indigo. 9) Who invented the colour wheel to show how white light is made up of colours within the visible spectrum? a) Albert Einstein. b) Sir Isaac Newton. c) Charles Darwin. 10) We see light when... a) it is reflected off an object and it enters our eye. b) light comes out of our eyes and onto an object. c) I'm not sure. 11) Choose the correct statement. a) The angle of incidence equals the angle of reflection. b) The angle of incidence does not equal the angle of reflection. c) The angle of incidence equals the angle of diffusion. 12) When light hits a shiny material, it is __________________ off the material. a) refracted b) reflected c) absorbed d) I'm not sure 13) Where would you need to stand to see the object in the mirror? (CHOOSE 1) a) A b) B c) C 14) Smooth and shiny materials reflect all the lights beams in the same direction so that a clear image is formed.  a) True b) False 15) Name the type of material for object A and B. a) A = rough B = shiny b) A = shiny B = rough c) I'm not sure. 16) When light beams reflect from rough materials... a) it forms a clear image for us to see. b) it scatters the light beams in different directions so no clear image can be seen.  c) I'm not sure. 17) What is a pigment? a) A stain on an object. b) The colour of a material. c) All the colours in the visible spectrum. 18) What does this diagram explain? a) Light being split by a prism and green being reflected to the eye. b) White light being dispersed and green lights coming from the eye. c) Green pigment of the material absorbing all other colours in the visible spectrum and reflecting only the colour green to the eye. 19) A filter... a) will only let its colour through. b) will let many colours through. c) is opaque. d) I'm not sure. 20) This shows... a) reflection. b) a shadow. c) refraction. d) I'm not sure 21) Refraction is... a) when light travels in straight lines. b) when light reflects off an object. c) when light changes direction as it moves from one medium to another. d) I'm not sure.

Light

印刷
埋め込み

リーダーボード

表示スタイル

オプション

テンプレートを切り替える

自動保存: を復元しますか?