# Science / Year 4 / Science Understanding / Physical sciences

Curriculum content descriptions

Forces can be exerted by one object on another through direct contact or from a distance (ACSSU076)

Elaborations
• observing qualitatively how speed is affected by the size of a force
• exploring how non-contact forces are similar to contact forces in terms of objects pushing and pulling another object
• comparing and contrasting the effect of friction on different surfaces, such as tyres and shoes on a range of surfaces
• investigating the effect of forces on the behaviour of an object through actions such as throwing, dropping, bouncing and rolling
• exploring the forces of attraction and repulsion between magnets
General capabilities
• Numeracy Numeracy
ScOT terms

Mechanical energy,  Fundamental forces

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