Download CURRICULUM SUMMARY – September to October 2008

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Transcript
Scheme of Work – September to December 2016
SUBJECT:
YEAR GROUP:
Week Learning objectives
1
Recall and use the equation ρ = m/v
Describe an experiment to determine the
density of a liquid and regular solid
Describe the determination of the density of
an irregular shaped solid by the method of
displacement
Predict whether an object will float based on
density data
2
Define speed and calculate from formula
Plot and interpret a speed-time graph or a
distance-time graph
Recognise from the shape of a speed-time
graph when a body is - at rest – moving with
constant speed – accelerating
Calculate the area under a speed-time graph
to work out the distance travelled for motion
with constant acceleration
TEACHER:
Activities and learning outcomes
Density = mass ÷ volume
Worked examples regular solids
Practical density of irregular solid & liquid
Ext & homework
Unit test
3
Ext worked examples & homework
Unit test
Introduction forces – Newton’s 1st law
Work through basic examples in force diagrams, identifying applicable force and direction
e.g. aeroplane, motorcar, man on chair etc.
Forces acting on bodies balanced & unbalanced (possible poster)
Class exercise terminal velocity sky-diver.. working through stages of initial jump,
acceleration to terminal velocity, effect of opening parachute and ground landing
4
Calculate speed / acceleration from gradient
of distance-time speed-time graph
Distinguish between speed and velocity
Understand deceleration as a negative
acceleration
Recognise that a force may produce a change
in size and shape of a body
Recognise that if there is no resultant force
on a body it either remains at rest or
continues at constant speed in a straight line
Recall and use the relation between force,
mass and acceleration F = ma
Describe qualitatively the motion of bodies
falling in a uniform gravitational field with
and without air resistance including reference
Speed = distance ÷ time
Essential concept of speed & simple worked examples
Motion graphs concept of gradient for speed/time representing acceleration & distance time
representing speed
Ext worked examples
Area under speed/time graph as total distance travelled
Worked examples for basic linear changes e.g. trapezium
Ext & homework
Helicopter practical – terminal velocity
Collation of results, completion of investigative practical form including graph drawing &
interpretation
Qualitative practical friction on moving bodies (circus)
Force diagrams
to terminal velocity
F = ma
Worked examples ext & homework
5
Describe qualitatively motion in a circular
path due to a perpendicular force
State Hooke’s Law and recall and use the
expression F = kx where k is the spring
constant
Recognise the significance of ‘the limit of
proportionality’ foran extension-load graph
Circular motion practical / demo
Work through examples of circular motion e.g. Earth around Sun, Moon around Earth,
electron around nucleus, car on roundabout, hammer thrower; emphasis upon
indentification of type of force providing centripetal action and instantaneous direction of
travel
Hooke’s law practical – proportional ext of spring – limit proportionality & elastic limit
Draw F/x graph and determine k from gradient
Worked example class ext and homework
6
State that weight is a gravitational force
Recall and use the equation W = mg
Describe and use the concept of weight as the
effect of a gravitational field upon a mass
Describe the moment of a force as a measure
of its turning effect and give everyday
examples
Calculate moment using the product force x
perpendicular distance from pivot
Apply the principle of moments to different
situations
Perform and describe an experiment to show
that there is no net moment on a body in
equilibrium
7
8
Understand that vectors have a magnitude
and direction
Demonstrate an understanding of the
difference between scalars and vectors and
give common examples
Determine graphically the resultant of two
vectors
Understand the concepts of momentum and
impulse
Concept of gravitational field & weight as a force
W = mg (differentiate g as field strength as opposed to acceleration)
Class discussion ‘g’ as applied to astronaut in space, on Moon, Mars or Jupiter
Practical activity ‘see-saw’ – balancing moment
Collate table of results and demonstrate Fd(left) = Fd (right)
Extend concept of equilibrium with application balanced forces and balanced moments
Demonstrate and discuss c.o.m. as applied to example objects e.g. retort stand, mobile
phone, class chair
Worked example ext and homework
Practical c.o.m. 2 ply lamina
Differentiate speed/velocity in terms direction
Terms scalar & vector – examples
Worked vector diagrams ext & homework
Introduction momentum as ‘oomph’
Summary powerpoint presentation
Demo momentum (Fletcher’s trolley, toy cars etc)
P = mv
Worked examples & ext
Recall and use the equation p = mv
Recall and use the equation for impulse
Ft = mv – mu
Apply the principle of conservation of
momentum to solve simple problems in one
dimension
9
Impulse as change in momentum
Further examples & homework
Mid term review, revision & assessment
10
Recognise that energy is transferred during
events and processes
Apply the principle of conservation of energy
to simple examples
Recall and use the expressions K.E. = ½mv2
And g.P.E. = mgh
Practical energy circus – identify energy transfers in simple machines + battery + lightbulb
+ loudspeaker
Conservation of energy applied to energy transfers
Example ‘Sankey’ diagrams for light bulb, T.V., washing machine etc.
K.E. & gPE formula & worked examples
Ext & homework
11
Describe how electricity or other useful forms
of energy may be obtained from:
Chemical energy / water / geothermal
resources / nuclear fission / the Sun / wind
Give advantages and disadvantages of each
method
Show an understanding that energy is
released by nuclear fusion in the Sun
Recall and use the equation:
Efficiency = useful energy output ÷ total
energy input
Demonstrate an understanding that work
done = energy transferred
Recall and use the equation W = Fd
Recall and use the equation P = ΔE ÷ t
Recall and use the equation p = F/A
Relate the pressure beneath a liquid surface
to depth and to density
Recall and use the equation p = hρg
Review energy resources renewable / non-renewable
Emphasis difference energy resources & types
Identify energy transfers applicable in electricity generation
Independent student research adv / disadv & possible class presentation
Efficiency understanding & formula
Worked examples, ext & homework
12
13
14
Work & power formulae
Worked examples, ext & homework
Unit test
Review / discuss simple examples big area – small pressure etc.
Worked examples using formula
Practical pressure on ground through feet
Fish tank proof
Ext and homework