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

Video

Different paper plane designs

  • TLF-IDM020570

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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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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Interactive

experiMENTALS: Bouncing balls

  • TLF-IDM016763

This resource contains a materials and instruction list and brief explanation for students to observe what happens when two different sized balls are dropped independently or in vertical contact. The simple explanation relates to transfer of energy.

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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

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

experiMENTALS: Levitating balloon

  • TLF-IDM016651

This resource contains a materials and instruction list and brief explanation for students about the process of levitating a balloon.

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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: 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

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

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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Video

Elliot and the Surfing Scientist: Balancing an aluminium can: centre of gravity

  • TLF-IDM016099

Be astounded as you watch Ruben the Surfing Scientist make an aluminium soft drink can balance at 45 degrees and rotate in a circle, as if by magic. Learn about the science behind this trick.

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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

Experimentals: Building with different shapes

  • TLF-IDM015938

Did you know that the shape of an object can affect its strength? Watch as Ruben Meerman tests two columns of different shapes to see which can carry the greater load. Consider how engineers might use this information to build tall structures.

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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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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

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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Text

Stomp Rocket Design Challenge

  • TLF-IDA002082

This resource provides a scaffold for students to complete a design challenge. The design challenge requires students to create a stomp rocket that can travel to a chosen planet in the solar system. The design challenge can also be used to investigate forces and energy. It can be delivered over a number of lessons, or it ...

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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. Please note that the 'About Grip' button is intentionally hidden and will only appear based on the user's choices. This learning object ...

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Text

Cranky Contraptions

  • TLF-IDA003922

This activity invites students to make Cranky Contraptions, kinetic sculptures that animate a character or scene when a handle is turned. These automata are powered by a simple crank slider mechanism which provides the basic motion. Everyday materials around can be repurposed into these contraptions. The activity includes ...

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Text

Cardboard Automata

  • TLF-IDA003917

This activity invites students to explore simple mechanical elements such as cams, levers, and linkages, while creating a moving sculpture. This activity is simple to start but may become more and more complex as students become familiar with possible motions and imagine ways to artistically decorate their contraption. ...

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