Unit 6E Balanced and unbalanced forces
EXPECTATIONS
at the end of this unit
most children will: Identify that weight is a force and is measured in newtons;
describe some situations in which there are two forces acting
on an object and recognise that when the object is at rest, the
forces are balanced; draw diagrams to illustrate forces acting on
an object; use a forcemeter accurately to measure forces, present
measurements in simple line graphs and identify patterns in these
some children will not have made identify weight as a force; recognise that more than one force
so much progress and will: can act on an object; measure forces using a forcemeter and
present measurements in tables
some children will have describe and explain the motion of some familiar objects in terms
progressed further and will also: of balanced or unbalanced forces
from QCA (1998) "A Scheme of Work for Key Stages 1 and 2: Science"
It is these statements that have been modified into "I can..." statements that the children can use
(with the "easiest" block placed first). The "I can..." statements for Unit 6E are shown below:
[_] I know that weight is a force
[_] I know that more than one force can act on an object.
[_] I can measure forces using a forcemeter.
[_] I can present my measurements in tables.
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[_] I know that weight is a force and is measured
in newtons.
[_] I can describe some situations in which there are
two forces acting on an object.
[_] I know that when the object is at rest, the forces are balanced.
[_] I can draw diagrams to illustrate forces acting on an object.
[_] I can use a forcemeter accurately to measure forces.
[_] I can present measurements in line graphs.
[_] I can identify patterns in measurements shown on a line graph.
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[_] I can describe the motion of some familiar objects.
[_] I can explain the motion of some familiar objects in terms of
balanced or unbalanced forces.