Forces & Helicopters

• compare how things move on different surfaces

• notice that some forces need contact between 2 objects, but magnetic forces can act at a distance

• observe how magnets attract or repel each other and attract some materials and not others

• compare and group together a variety of everyday materials on the basis of whether they are attracted to a magnet, and identify some magnetic materials

• describe magnets as having 2 poles

• predict whether 2 magnets will attract or repel each other, depending on which poles are facing

• explain that unsupported objects fall towards the Earth because of the force of gravity acting between the Earth and the falling object

• identify the effects of air resistance, water resistance and friction, that act between moving surfaces

• recognise that some mechanisms including levers, pulleys and gears allow a smaller force to have a greater effect

Describe the effects of simple forces that involve contact (air and water resistance, friction)

Describe the effects of forces that act at a distance (magnetic forces, including those between like and unlike magnetic poles)

Describe the effect of gravity

Identify simple mechanisms, including levers, gears and pulleys, that increase the effect of a force