Science / Year 7 / Science Understanding / Physical sciences

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Curriculum content descriptions

Change to an object’s motion is caused by unbalanced forces, including Earth’s gravitational attraction, acting on the object (ACSSU117)

Elaborations
  • investigating the effects of applying different forces to familiar objects
  • investigating common situations where forces are balanced, such as stationary objects, and unbalanced, such as falling objects
  • investigating a simple machine such as lever or pulley system
  • exploring how gravity affects objects on the surface of Earth
  • considering how gravity keeps planets in orbit around the sun
General capabilities
  • Literacy Literacy
ScOT terms

Motion

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20 direct matches to ACSSU117

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experiMENTALS: Trumpet straw

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This resource contains a materials and instruction list and brief explanation for students about the process of making a straw that can produce vibrations when blown through.

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experiMENTALS: ink chromatography

  • TLF-IDM016535

This resource contains a materials and instruction list and brief explanation for students about the process of separating ink mixtures using paper chromatography.

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Interactive

Calculating Moments

  • TLF-IDM016426

Students use this resource consisting of seven slides with diagrams, written explanation and voice-over to understand the principle of moments and its application to situations involving one pivot. There is a two-question quiz and a summary slide.

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Video

Pivots and Levers: animation

  • TLF-IDM016612

Students use this resource consisting of one page with a diagram of a lever whose length can be varied. A weight is then applied to the lever and students can see whether the force was sufficient to lift a crate. This demonstrates that forces can cause a lever to turn about a pivot and that the turning effect of a lever ...

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Interactive

experiMENTALS: Keys on a shoelace

  • TLF-IDM016617

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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Interactive

experiMENTALS: Gravity defying wheel

  • TLF-IDM016703

This resource contains a materials and instruction list and brief explanation for students about the process of demonstrating resistance to change in a spinning a bike wheel to observe the principles of a gyroscope.

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Interactive

Rotocopters

  • TLF-IDM016727

This resource contains lessons plans containing instructions and teachers' notes for a lesson that can be part of a unit on flight or used as a great motivating activity to foster positive attitudes. The clear and explicit instructions are a good example of a procedural text. The notes also provide a clear explanation of ...

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Interactive

Gravity

  • TLF-IDM016722

Students use this resource consisting of four slides with diagrams, written explanation and voice-over to understand that gravity is a force of attraction which acts on Earth towards the centre of the planet, and that the size of the force of gravity depends on the mass of each object and the distance between them. There ...

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Video

Experimentals: Do different things fall faster?

  • TLF-IDM015950

Want to find out what happens when you drop a watermelon and an apple from the top of a building? In this clip, Bernie Hobbs and Ruben Meerman, investigate whether the mass of an object influences how fast it falls. Bernie and Ruben ride the 'Giant Drop' at Dreamworld, drop a watermelon and apple from an eighth floor balcony, ...

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Video

Elliot and the Surfing Scientist: Make a lava lamp model using oil and water

  • TLF-IDM015711

Imagine making your very own lava lamp using materials from your kitchen and bathroom. Watch the Surfing Scientist team show you how it can be done, then try and figure out why it works.

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Interactive

Sites2See: Surf safety

  • TLF-IDM015335

A webpage about surfing safety, dangerous waves and rips, and the history and science of surfing. A 'For Kids' section provides games and quizzes for young swimmers and surfers.

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Video

Elliot and the Surfing Scientist: Making a mini-rocket

  • TLF-IDM015768

Have you ever seen someone create a rocket using a soft drink bottle? In this clip, Surfing Scientist Ruben Meerman attempts to 'supersize science'. You will find out how he made a model rocket and see slow-motion footage of the rocket as it shoots up into the sky.

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Interactive

Plotting a Magnetic Field

  • TLF-IDM016553

Students use this resource consisting of seven slides with diagrams, written explanation and voice-over to understand how to plot the magnetic field around a bar magnet using a plotting compass. There is a two-question quiz and a summary slide.

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Video

Measuring Speed (Simulation)

  • TLF-IDM016557

Students use this resource consisting of a webpage with diagrams of three cars that students can vary the speed at which they are travelling. They can calculate the time to travel 3000m and then observe the cars as they travel the distance. This demonstrates how to work out the speed of a moving object and how to make calculations ...

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Interactive

experiMENTALS: Magic rocking candle

  • TLF-IDM016610

This resource contains a materials and instruction list and brief explanation for students about the process of burning both ends of a balancing candle. This activity is most likely to be done as a teacher demonstration for safety and classroom management reasons, particularly at primary school level.

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Interactive

National Science Week flight special

  • TLF-IDM016721

This resource contains lessons plans containing instructions and teachers' notes for fun experiments focusing on the science of flight. Try them in your classroom and watch Elliot and the Surfing Scientist tackle them on Roller-coaster. A wide ranges of activities with clear directions and illustrations based on a range ...

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Video

Experimentals: Examples of Bernoulli's theorem

  • TLF-IDM015369

Have you ever wondered how a yacht sails into the wind? Watch as the Experimentals team works through practical demonstrations of Bernoulli's theorem. You're in for a few surprises as you learn how gases and liquids change their behavior as they begin to flow.

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Video

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

  • TLF-IDM015554

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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Video

Friction: Friend or foe?

  • TLF-IDM017940

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 ...

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Video

Anatomy of a raindrop

  • TLF-IDM018812

The water cycle is the circulation of water on, in and above Earth and it involves a number of stages and changes of state. This clip describes the water cycle and also how modern technology has contributed to our understanding of the shape of raindrops and its relationship to precipitation. Discover how raindrop shape ...

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