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Listed under:  Science  >  Forces and energy  >  Mechanical energy  >  Motion  >  Reciprocal actions
Moving Image

Jet versus rocket propulsion

Jet engines and rockets are powered by a chemical reaction between a fuel and oxygen. This creates heat and gases that are turned into thrust. Watch this clip as a science reporter tests the power of homemade jet and rocket engines. Discover why oxygen supply is critical and find out what happens when he adds liquid oxygen ...

Moving Image

Toffee-powered rocket bike

Space rockets are powered by a combustion reaction in which a fuel reacts with oxygen. In this clip, a science reporter builds a bike propelled by toffee (a high-energy solid that burns) and nitrous oxide, which provides oxygen for the reaction. You'll be amazed to see what happens when he adds peanuts to the toffee. Don't ...

Teacher resource

Backyard Science: forces

This resource, including student videos, provide opportunities for students to identify types of forces, determine whether forces are balanced or unbalanced and compare water and air resistance. They will conduct an investigation into the relationship between friction and different types of surfaces. Students will design, ...

Assessment resource

Pushing and pulling: assessment

Test your understanding of push and pull forces by moving animals using monkey power. Investigate and then predict the effects of applying a force to move a range of objects of various mass. For example, select two monkeys to move a pelican, and predict whether they will move the pelican slowly, quickly or too fast.

Video

'Outside world comes to keeper of the light', 1933 - asset 3

This is a clip taken from the second half of an item featured in the weekly episode of the black-and-white newsreel Cinesound Review released to cinemas on 13 April 1933. The item as a whole is about the visit of the supply ship 'Cape York' to lighthouses along the coast of Tasmania. The clip features Maatsuyker Island ...

Teacher resource

Pushes and pulls

This teacher resource lists critical teaching ideas about the motion of objects and pushes and pulls, and suggests ways to encourage students to reflect on their ideas. It explores the difference between students' early understandings about pushes and pulls and the motion of objects, and the scientific view. It suggests ...