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

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?

Video

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!

Online

MoneySmart: The house of needs and wants

This is a unit of work integrating aspects of the mathematics, English and science curriculums around planning a school breakfast. The unit was written for year 3 and is intended to take about 12 hours. It consists of 11 student activities supported by teacher notes on curriculum, pedagogy and assessment. Student activities ...

Image

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. ...

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 ...

Audio

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 ...