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Listed under:  Science  >  Forces and energy  >  Mechanical energy  >  Friction
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Aeronautics

This is a resource for educators detailing student learning programs that explore aeronautics, encouraging them to examine the nature of flight and to experience some real-life applications of mathematics, science and technology. The activities are divided into three chapters: Air, Flight and We Can Fly, You and I. Step-by-step ...

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Air-raid shelter in Brisbane, 1942

This black-and-white photograph shows two women and two uniformed servicemen in a backyard featuring a homemade air-raid shelter during the Second World War. The two men, Private Dick of the AIF and US soldier Tom Squires, are standing in the shelter with Anthea Dyke while Doreen Smythe is jokingly pointing a hose at them. ...

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Balloon car challenge

In this practical activity, students design and build a balloon-powered car and race it to better understand the ideas related to rocket propulsion. The resource includes a step-by-step teacher guide and student worksheets.

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Can We Help?: Effects of g-force on the human body

Peter Rowsthorn visits the Australian International Air Show to answer the question, 'What effect does g-force have on the human body?' Join Pete in the cockpit of a light plane for some aerobatics with pilot David Pilkington. G-force expert Dr David Newman explains the science as Pete endures up to 6 g in the aircraft.

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Catalyst: The physics of a slinky drop

Imagine holding a slinky by the top end, with the bottom end dangling in mid-air. What do you think would happen when you let it go? Explore the physics of two equal and opposing forces working on an object in this awesome experiment!

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Different paper plane designs

How many different paper plane designs are there? Lots! Watch as Dylan Parker, paper plane expert, demonstrates some of his favourites. Notice the way the different shapes and features of the planes cause them to move through the air in different ways. Which one do you like the most? Why not have a go at making something similar?

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Elliot and the Surfing Scientist: Floating ping pong ball

A ping pong ball usually floats on the surface of water. Watch what happens to a ping pong ball in a tank of water as Ruben Meerman, the Surfing Scientist, experiments with the pressure of the air. (air pressure)

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Elliot and the Surfing Scientist: Friction between paper experiment

Are you strong enough to pull two sheets of paper apart? What about two books with the pages intertwined? Watch this experiment performed by Ruben Meerman, the Surfing Scientist, and find out how he tests the presence of friction between pieces of paper.

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Experimentals: Do-it-yourself science toys

Bernie and Ruben show you how to make four do-it-yourself (DIY) science toys. Learn how to make a balancing tightrope walker, a lava lamp, a spinning spiral decoration and a cardboard boomerang. You might need some help with a few things.

Interactive

experiMENTALS: Keys on a shoelace

This resource contains a materials and instruction list and brief explanation for students to show that keys on a shoelace can do some unexpected things.

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Experimentals: Raiders of the lost Anti-Bubble

Doctor Ruby and Bunsen Bernie are bubble hunters in search of the mysterious Anti-Bubble. Before they can enter into the Chamber of the Anti-Bubble, they must pass three challenging bubble tests. This is part one of a two-part episode.

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Experimentals: The secret chamber of the Anti-Bubble

Bubble-hunters Doctor Ruby and Bunsen Bernie have to solve just one more challenging bubble test before they can enter the Chamber of the Anti-Bubble. They have to make a cubic bubble! This is part two of a two-part episode.

Interactive

Factors Affecting Thinking Distance

Students use this resource consisting of nine slides with diagrams, written explanation and voice-over to understand that the stopping distance of a car depends on the alertness of the driver as well as its speed and frictional forces. There is a two-question quiz and a summary slide.

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For the Juniors: Ramping up the fun

Join Winston as he tests which materials slide down a ramp. Which ones will slip and which ones will grip? He's testing a wooden block, a stone, a glass bottle and an eraser. Predict what will happen. Watch to see if your prediction was right.

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Forces

Students use this resource consisting of seven slides with diagrams, written explanation and voice-over to understand what forces are and what they can do. There is a two-question quiz and a summary slide.

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Friction

In this learning sequence, students explore frictional forces. They investigate how friction changes with different contact surfaces in wet, dry and icy conditions, and the effect this has on braking. Finally they apply this learning to the real-world situation of tram travel, and explore why sand is used on tram tracks ...

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Friction: Friend or foe?

What part does the force of friction play in our everyday lives? Friction can be an advantage (friend) or a problem (foe). Join interviewer Doug Traction and professors Static, Slide, Rolling and Fluid at the National Tribology Research Centre as they have forceful fun investigating friction. This video won a prize in the ...

Interactive

Give me a brake

Investigate braking efficiency of cars and trucks by testing stopping distances under controlled conditions. Test effects of vehicle type, tyres, road surface and weather conditions. Choose driving speed, then apply brakes and compare stopping distances. Estimate distances from target markers. Answer questions about antilock ...

Interactive

It's a drag

Investigate the braking efficiency of cars and trucks. Test stopping distances under controlled conditions. Compare effects of vehicle type, tyres, road surface and weather conditions. Choose driving speed, then apply brakes and compare stopping distances. Answer questions about friction, tyres and driver fatigue. This ...

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Judge Kevin Parker talks about 'beyond reasonable doubt', 2008

This is an edited sound recording of Kevin Parker, vice-president of the International Criminal Tribunal for the former Yugoslavia (ICTY), outlining the process of reaching a judgement. Parker stresses that a guilty verdict can only be based on a case being proven 'beyond reasonable doubt' through evidence brought before ...