1) Light is a form of Energy. a) True b) False 2) Light travels in straight lines. a) True b) False 3) Light can only travel in air. a) True b) False 4) Objects that produce their own light are called.... a) shiny b) Luminous c) reflective 5) The Moon is..... a) Luminous b) Non-luminous c) Made of Cheese 6) When light hits a dull rough surface it is .... a) reflected b) refracted c) scattered 7) When light hits a smooth shiny surface it is.... a) reflected b) refracted c) scattered 8) When light passes from air into glass it is .... a) reflected b) refracted c) scattered 9) When light enters a glass block it bends __________ from the normal. a) Away b) Towards 10) When light passes from a glass block to air it is bent _________ from the normal. a) Away b) Towards 11) What is needed for Sound to occur? a) Space b) Atoms c) A person d) A bang 12) What travels fastest? a) Sound waves b) Light waves c) Sea Waves d) Mexican Waves 13) Which wave has the highest amplitude a) A b) B c) C 14) Which wave has the highest frequency? a) Blue b) Red 15) Black objects..... a) ...reflect all light. b) ....absorb all light. c) ...absorb some light. d) ....reflect some light. 16) White objects.... a) ....absorb all light b) .....reflect all light c) .....absorb some light. d) .....reflect some light. 17) A Blue object will reflect..... a) ...all light but blue. b) ...only blue light. 18) Which is the correct order for the colours seen when light is split by a prism. a) RYOGBIV b) VIROYBG c) ROYGBIV 19) Sound can travel in a vacuum. a) True b) False 20) What is the speed of a sound wave that travelled 100 000 m in 100 seconds. a) 10 m/s b) 100 m/s c) 1000 m/s d) 100000 m/s

Light and sound

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