1) Sound is caused by: a) waves b) vibrations c) heat d) air 2) The pitch of a sound is: a) how high or low it sounds. b) how loud or quiet it it. c) how much energy it carries. d) how long the sound lasts. 3) A loud sound is produced by waves with: a) a small amplitude. b) a large amplitude. c) a high frequency. d) a high pitch. 4) Look at these drawings of waves. Which statement is true? a) X has the lowest amplitude. b) X has the highest frequency. c) Y has the highest frequency. d) Y has the highest amplitude. 5) Which statement is not true? a) light and sound both travel as waves. b) sound travels at the same speed as light. c) light travels faster than sound. d) light and sound can both be reflected. 6) Sound can travel through: a) space b) a vacuum c) a solid, liquid or gas d) a solid or liquid only 7) Sound travels fastest in solid materials which have particles that are: a) wide apart. b) close together. c) very hot. d) able to move around freely. 8) Sound is less likely to get out of a room which has: a) a wooden floor. b) black walls. c) soft curtains and a carpet. d) spotlights. 9) Which of these is not a luminous object? a) a light bulb b) the Sun c) a mirror d) a TV 10) Shadows are formed because: a) light will only travel a certain distance before it stops. b) a substance called ‘darkness’ collects behind some objects. c) some objects do not give out light in all directions. d) light cannot go through some objects. 11) Which of these will absorb the most light? a) a white sheet of paper b) a sheet of clear glass c) a black piece of card d) an orange piece of card 12) Refraction is what happens when light: a) hits an opaque object. b) bounces off a mirror. c) is scattered by a rough surface. d) bends as it goes from one medium into another. 13) Refraction occurs because: a) light speeds up when it enters a denser medium. b) light stops when it enters a denser mediuml c) light slows down when it enters a denser medium. d) light reflects inside denser mediums. 14) Which statement is not true? a) A rainbow is a spectrum of colours. b) White light is made up of many colours. c) A spectrum can only be made using paints. d) A prism can split white light into a spectrum. 15) A red filter: a) absorbs red light. b) lets through all colours of light. c) only lets red light through. d) changes all the colours into red light. 16) Blue objects look blue because: a) they reflect all colours. b) they refract all colours. c) they absorb blue light only. d) they reflect blue light only. 17) How big will the angle of reflection be? a) 20 ° b) 30 ° c) 40 ° d) 60 °

quiz sound and light

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