Download P1_student_checklist 2016

OCR GCSE
Science
Student checklist P1
Energy for the home
Tick () red if you do not understand at all
Tick () amber if you are fairly confident
In your revision, focus on the red/amber
columns
Tick () green if you know this and can apply the ideas.
R
I can:
P1a
A
recognise that heat is a form of energy and is measured in joules
recognise that heat flow is directed by temperature difference
state that temperature is a degree of hotness and is measured in oC
use a thermogram to identify hot areas
define specific heat capacity and understand that this measures the
quantity of heat which a material can hold
state and use the formula
energy = mass x specific heat capacity x temperature change
recognise that energy is being transferred when materials melt or boil
although there is no change in temperature
define specific latent heat.
state and use the formula: energy = mass x specific latent heat
explain that energy is needed to break intermolecular bonds during
changes of state
P1b
recognise good and bad conductors of heat and understand how these can
be employed in house building to reduce energy loss from the home.
interpret cost saving data from this and can calculate payback period.
state and use the equation efficiency =
P1c
useful energy output
total energy output
explain the transfer of heat by conduction, convection and radiation and
understand how heat loss by these methods can be reduced in the home
situation
explain conduction in terms of particles, convection in terms of
density changes and radiation in terms of electromagnetic waves
P1d
describe the properties of microwaves and their use in the cooking of
food
compare cooking using microwaves with using infrared radiation
describe how microwaves and infrared transfer energy
relate the energy of microwaves and infrared to their frequency
understand the use of microwaves to transfer information and can
understand the possible dangers which this presents in the community
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© Harcourt Education 2006, OCR Gateway Science
This document may have been altered from the original.
G
OCR GCSE
Science
Student checklist P1
describe the diffraction and interference of microwaves as a possible
cause of signal loss
P1e
describe the differences between analogue and digital signals
understand the advantages of digital signals over analogue signals
understand the use of optical fibres for the transmission of information
and understand that these are an application of total internal reflection
(TIR)
understand that TIR takes place when the angle of incidence exceeds
the critical angle and that this explains how optical fibres work
P1f
recognise that radiation used in communication can be refracted and
understand the uses of wireless
recognise the use of wireless technology in radio, mobile phones and
laptop computers
recognise that radio stations may interfere with one another.
understand that radio waves may be reflected, refracted and
diffracted and the effects of these upon wireless reception
P1g
describe the features of transverse waves
use the equation wave speed = frequency x wavelength
change the subject of this formula
describe the use of light in communication
understand its disadvantages when compared with radio waves
understand that lasers contain waves of the same frequency that are
in phase with one another
explain the use of a laser beam in a CD player
P1h
describe the production of shock waves during earthquakes
state the existence of and state the properties of two types of seismic
waves
describe the use of seismic waves in providing evidence of the Earth’s
structure
explain the effect of skin pigment on the risk of cancer
calculate how long a person may safely spend in the sun using SPF
describe how the ozone layer protects the Earth from ultraviolet radiation
and the damaging effect of CFCs
explain the effects of human activity and natural phenomena on weather
patterns and climate change.
interpret information about the effect of natural or human activity on
climate change
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© Harcourt Education 2006, OCR Gateway Science
This document may have been altered from the original.