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Force and Newton's Laws
|Mass: a measure of Inertia|
|RadicalPhysics explains Inertia and Mass||YouTube. 7 mins. It may not be 'entertaining' but it is very useful. And it does highlight the difficulty of measuring inertia.||4 Star|
|Feynman talks about Inertia||Youtube. 2 mins. Also dips into the fallacy of thinking that knowing the name of something is the same as understanding it.||5 Star|
|What does inertia look like?||A truck brakes suddenly and comes to a stop. So what happens its load? Flickr||4 Star|
|Simple fun demonstration of inertia||With a wine-glass. Can you repeat it?||3 Star|
|The old Table-top Trick||A short video-clip of From Metacafe.com||4 Star|
|With a motor-bike? !!||YouTube. 1 min||4 Star|
|A bursting balloon caught with a high-speed camera.
Note that that mass of water moves slowly initially. 1:33 from YouTube.
Click on the other clips to see more.
|The unit of mass: the kilogram|
|World's roundest object! redefining the kilogram||YouTube. 12 mins. Brilliant, but a bit advance for first years.||5 Star|
|What is a kilogram not a kilogram?||Blog post from thinkforyourself.ie||4 Star|
|Truck-driver makes use of inertia to pick up a load||Youtube. 2 mins.||4 Star|
|Revisit in introduction to units||YouTube. via CrashCourse.
Only the first few minutes are relevant for this chapter but it's all worth watching
|What is a force?||YouTube. 4 mins from Veritasium|
|Forces in one dimension||Play with the different tabs to teach yourself about forces and acceleration. Takes time to figure it out but it's worth it||4 Star|
|Forces acting on an accelerating car||Simple animation from absorblearning.com||3 Star|
|Friction on a molecular level||Friction between two rough surfaces, from absorblearning.com||
|And from a smooth surface||3 Star|
|The effect of ball-bearings in reducing friction||4 Star|
|The effect of lubrication in reducing friction||4 Star|
|Drag one book over the over and note the temperature change||4 Star|
|Push the book across the table and note the affect of friction. Then get the dog to bring it back||3 Star|
|Nice counter-intuitive demonstration||Interweave the pages from two books and then try to pull them apart. YouTube. 2 mins||
|How about using military tanks to pull them apart? Mythbusters on YouTube. 6 mins||4 Star|
|Can this friction force lift a car? Vsauce find out on YouTube. 6 mins||4 Star|
|Misconceptions to do with Newton's Laws: we need to acknowledge and address these before leaving the topic|
|What Forces Are Acting On You?||YouTube. 4 mins from Veritasium|
|Equal and opposite forces||I think it's one of the most impressive demos for addressing students' misconceptions that I have seen. YouTube.1 minute from physics teacher Frank Nochese||5 Star|
|Newton's Third Law||YouTube. 4 mins from 1veritasium||5 Star|
|Three incorrect laws of motion||What we think the laws should be|
|Newtons's First Law and Car safety|
|Who knew concussion was an example of Newton's first law of motion||YouTube. 4 mins|
|Explain it to me: Concussions||link||YouTube. 3 mins|
|Car pile-up caused by ice.||How could you explain this without invoking Newton's first law? Youtube. 5 mins.||4 Star|
|Animation of a car crash||What happens a driver in a convertible when a car hits a wall? Newton's First Law, that's what.||3 Star|
|TV ad about car safety||From youtube. 30 seconds .||4 Star|
|What happens a helium balloon when the car brakes?||Can you explain it? YouTube. 1 min||5 Star|
|A body at rest remains at rest||With shopping trolleys. You may need to watch this twice. Youtube. 1:30||4 Star|
|Astronaut loses toolbag in space||She is not having a good day. Youtube. 1:20||4 Star|
|F = ma or Newton's Second Law|
|Nice introduction of how Inertia plus F = ma is incorporated in car safety.||Part of a wonderful lecture from Dr Kevin McGuigan for the IOP. YouTube. First 7 mins.||4 Star|
|A karate expert braking blocks with his forehead. Youtube. One minute||4 Star|
|A karate expert who isn't quite as expert as he thinks! - google video||3 Star|
|F = ma experiment applets|
|One of the very best||Add an extra mass - what happens the acceleration? Double the force - what happens the acceleration? You're limited to 5 minutes||5 Star|
|Video on how to use the above link effectively||3 Star|
|Newton's Third Law|
|Best Film on Newton's Third Law. Ever.||link||From Veritasium on Youtube. 4 mins|
|Spud gun breaks||Because for every action there is an equal and opposite reaction.
MyYouTube 12 secs.
|Astronauts and Newton's Third Law||Short video clip||5 Star|
|Turning a bolt in space||Short video clip||4 Star|
|Forces act in pairs||Nice interactive animation||5 Star|
|Steering a rocket||Interactive game||3 Star|
|The old fire-extinguisher and tricycle demo||Nice short video from MIT tv||4 Star|
|Rocket Science||From Veritasium on Youtube. 8 mins||4 Star|
|And if one object pushes or pulls on another object, the force on both will be the same.||This actually seems very strange - watch this YouTube clip and follow the instructions in relation to predicting in advance. 1 min.||5 Star|
|So what is the force that pushes up when we sit down on a chair?||Did you know that 99.999999% of matter is empty?????
From teachersdomain and YouTube. 1 min
|The atom - to scale||
Web-page with electron and proton to scale. Scroll over to the extreme right to see the electron.
|This must mean that we are almost completely empty space!|
|So we can never actually sit on a chair.||
Short video (1:15) trying to explain this
|And we can never actually 'touch' anything else.||From YouTube. 6 mins. Slightly funkier analysis||5 Star|
|Why textbook depictions of the atom are wrong||
YouTube. 1:30. Pretty cool
YouTube. 3:30. Note that it took Rutherford TWO YEARS to make sense of his results. Includes a clip of the great man himself.
|It kinda freaked him out||
Audio link. 1:30. But it's worth it to hear how much it freightened Rutherford.
|All three laws|
|Overview of the three laws||Fun interactive cartoons||5 Star|
|Combining all the forces in one grand theory of everything is sometimes referred to as the Holy Grail of Physics||4 min video-clip taken from The Elegant Universe.||4 Star|
|An unusual perspective on all three laws||From science.discovery.com/||3 Star|
|Summary of all three laws using ice hockey||From howscienceworks. 2 mins||4 Star|
|Famous documentary about Isaac Newton - he wasn't as wonderful a character as textbooks often make him out to be||YouTube. 52 mins. Newton's Dark Secrets||5 Star|