Why can’t you hear anything in space? | Physics – Tim Peake Space Science

Suitable for teaching 7-16s. Tim Peake explains that a space walk is silent. Fran Scott uses an alarm clock and a vacuum pump to demonstrate how sound is created by vibrations in the air, and so is absent in space. Subscribe for more Physics clips from BBC Teach every Wednesday: https://bit.ly/BBCSubscribeTeach If you found this video helpful, give it a like. Share it with someone. Add the video to your own teaching playlists. Create an account, subscribe to the channel and create playlists for different age groups, sets and syllabuses. ===================== Tim Peake explains how the constant noise of machines on the International Space Station is a contrast to the utter silence of a space walk. Science presenter Fran Scott uses an alarm clock to demonstrate why you can’t hear anything in space. She uses a pump to create a vacuum around it, so we can no longer hear the alarm ringing. She explains that because sound is created by vibrations in the air, you can’t hear the alarm in a vacuum. When she lets the air back in, you can hear the alarm again. This clip is from the BBC series Tim Peake Bitesize. British astronaut Tim Peake discusses the science and the practicalities of living in space, ahead of his six-month stay on the International Space Station. Science presenter Fran Scott uses a series of demonstrations to show how physical forces such as vacuums, combustion reactions and friction need to be taken into account when planning a trip into orbit, and creates the chemical composition of a comet using household ingredients. For more clips from Tim Peake Bitesize: http://bit.ly/TeachTimPeake For our Physics playlist: http://bit.ly/BBCTeachPhysics For Class Clips users, the original reference for the clip was p03gjrcp. ===================== Teaching Physics or Science? Key Stage 2 (Science / Earth and Space) – engage pupils with the current mission to the International Space Station focusing on British astronaut Tim Peake. This can complement an introduction to sound, waves and space. Key Stage 3 (Physics) - engage pupils with the current mission to the International Space Station focusing on British astronaut Tim Peake. This can supplement an introduction to sound, waves and space. They can try and recreate this classic experiment in the classroom. These clips are suitable for teaching Science at KS2, and Physics at KS3 and KS4 in England, Wales and Northern Ireland. In Scotland, they are relevant for Science at 2nd,3rd and 4th Level, and Physics at National 4 and 5. ===================== For more clips from other subjects at the BBC Teach YouTube channel: http://www.youtube.com/bbcteach More from BBC Learning Zone: http://www.bbc.co.uk/learningzone More resources from BBC Bitesize: http://www.bbc.co.uk/education ===================== Subscribe to create your own customised playlists, and get notified about our latest clips. As we have them, new videos will be uploaded on the following days: Mondays: Biology, Computer Science, Music, Religious Studies Tuesdays: Drama and Performance, English Language, Maths, Physical Education Wednesdays: Languages, Media Studies, Modern Studies and PSHE, Physics Thursdays: Art and Design, Chemistry, Geography, History Fridays: Business Studies, Design and Technology, English Literature