Science / Year 7 / Science Understanding / Physical sciences

View on Australian Curriculum website Australian Curriculum, Assessment and Reporting Authority
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

Interactive

Energy skate park: basics

  • TLF-IDM012215

This is an interactive teaching and learning resource that years 7 to 10 secondary school students can use to simulate the motion of a skateboarder descending and ascending on a variety of tracks. Height, speed and energy conservation are visually displayed. The skater's mass and starting height, as well as the drag he ...

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Online

reSolve: Modelling Motion - Year 7

  • TLF-IDM025029

This sequence of seven lessons challenges students to use simple equipment to predict, observe and represent motion. They create a series of graphs to represent motion and construct instruments to measure forces in one and then two dimensions. They interpret these representations to develop concepts of force and motion. ...

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Interactive

Wild ride: get a grip

  • TLF-IDL477

Investigate the role of friction in performance of bicycle tyres. Test how the type of tread affects grip and speed. Choose tyres best suited to track and weather conditions in a time trial. This learning object is one in a series of four objects.

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Online

How the Rubber Meets the Road

  • TLF-IDM021521

Lesson focuses on how engineers design tyre treads to increase safety and reliability. Students are presented with the challenge of designing a new tyre tread that will be safe when driving in rainy conditions. Student teams will design and construct a sample tread out of clay, then test and evaluate the effectiveness of ...

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Interactive

It's a drag

  • TLF-IDL51

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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Interactive

Give me a brake

  • TLF-IDL52

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 ...

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Interactive

Useful Friction

  • TLF-IDM016524

Students use this resource consisting of six slides with diagrams, written explanation and voice-over to understand how friction is needed in movement and braking. The fact that friction produces heat and causes wear is also mentioned. 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

Clockwise and Anticlockwise Moments

  • TLF-IDM016667

Students use this resource consisting of five slides with diagrams, written explanation and voice-over to understand that a moment is a turning force, which can be clockwise or anticlockwise. There is a two-question quiz and a summary slide.

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Video

Understanding Magnets

  • TLF-IDM016196

In this simulation students select an object made of one of two materials (either iron or aluminium) and use magnets to guide the object through a maze. Engages students while they learn that aluminium is not attracted to magnets but iron is.

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Interactive

Pivots and Levers

  • TLF-IDM016302

Students use this resource consisting of seven slides with diagrams, written explanation and voice-over to understand that forces can cause objects to turn about a pivot and that the turning effect of a lever depends on the force and its distance from the pivot. There is a two-question quiz and a summary slide.

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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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Interactive

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

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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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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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

experiMENTALS: Trumpet straw

  • TLF-IDM016294

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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Interactive

Stopping Distances: animation

  • TLF-IDM016344

Students use this resource consisting of a webpage in which students can vary either the vehicle (car or truck) and the road surface (dry, wet, icy) to explore the effect on stopping distance. This could be used as an introduction to friction.

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