Download Physics-Y11-LP3 - All Saints` Catholic High School

All Saints’ Catholic High School & Specialist Language College
Learning Programme 1 (LP1)
Subject: P7.1
Year group: 11
During this half term I will be learning …
LP 4/ 1
LP4
Homework
Research Based HW
• recall that Cepheid variable stars pulse in brightness,
with a period related to their luminosity
• recall that and explain qualitatively how this
relationship enables astronomers to estimate the
distance to
Cepheid variable stars
• understand the role of observations of Cepheid
variable stars in establishing the scale of the Universe
and the
nature of most spiral nebulas as distant galaxies
• describe some of the new information that telescopes
revealed about the Milky Way and objects beyond the
Milky Way
• recall the main issue in the Curtis–Shapley debate
• recall that Hubble’s observations of Cepheid variables
in one spiral nebula indicated that it was much further
away than any star in the Milky Way, and so he
concluded that this nebula was a separate galaxy
LP4/2
• calculate distances in parsecs from values in light
years and angles of parallax
• appreciate that typical interstellar distances are a few
parsecs
Revision tasks
• calculate distances in parsecs from values in light
years and angles of parallax
• appreciate that typical interstellar distances are a few
parsecs
LP4/3
• explain how data about supernovae can be used to
estimate distances to other galaxies
• use data to plot a graph of velocity against distance
and get a value of the Hubble constant
• appreciate that, as new data is collected, the value for
the Hubble constant is reviewed
• use a spreadsheet to make charts and analyse data
• explain that observations support the big bang theory
• H: explain that observations suggest that space is
expanding
Exam questions
All Saints’ Catholic High School & Specialist Language College
Learning Programme 1 (LP1)
LP4/4
• describe how all hot objects (including stars) emit a
continuous range of electromagnetic radiation, whose
luminosity and peak frequency increases with
temperature
Research Based HW
• describe how specific spectral lines in the spectrum of
a star provide evidence of the chemical elements
present
in it
• use data on the spectrum of a star, together with data
on the line spectra of elements, to identify elements
present in it
LP4/5
Revision tasks
• recall that the removal of electrons from atoms is called
ionisation
• explain how electron energy levels within atoms
give rise to line spectra
• describe how hydrogen nuclei can fuse to produce
helium nuclei and release energy
• show how the process of nuclear fusion can provide an
explanation for the Sun’s energy source
• H: explain how Einstein’s equation E = mc2 is used
to calculate the energy released during nuclear
Fusion
• describe how specific spectral lines in the spectrum of
a star provide evidence of the chemical elements
present
in it
• use data on the spectrum of a star, together with data
on the line spectra of elements, to identify elements
present in it
LP4/6
Exam questions
All Saints’ Catholic High School & Specialist Language College
Learning Programme 1 (LP1)
• use the kinetic theory of gases to explain why the
Exam style questions
pressure of a fixed mass of gas increases when the
volume is
reduced, if its temperature is constant
• use the relationship P x V = constant • recall that –273
°C is the absolute zero of temperature
• be able to convert temperatures in K to temperatures in
°C (and vice versa)
• describe and explain the processes that take place in a
star
• explain why the core of a star is where most nuclear
fusion takes place
• explain how energy is transported from core to surface
• describe how energy is radiated into space from the
star’s surface
LP4/7
• describe and explain the processes that take place in a
star
• explain why the core of a star is where most nuclear
fusion takes place
• explain how energy is transported from core to surface
• describe how energy is radiated into space from the
star’s surface
• explain the theory of formation of red giants, supergiants, and white dwarfs
• explain what a supernova is and what a neutron star is
and look at examples
• explain what a black hole is, how it is formed, and look
at evidence of their existence
• how nuclei with masses greater those of than iron are
formed in a supernova explosion
All Saints’ Catholic High School & Specialist Language College
Learning Programme 1 (LP1)
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LP 1 4
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Data task