Download Section A6: Astronomy - iGCSE Science Courses

Edexcel iGCSE Physics 4PH0 Learning Plan
Section A6: Astronomy
Specification
• Recall that the Moon orbits the Earth
and that some other planets also have
moons.
• Understand gravitational field strength,
g, and recall that it is different on other
planets and on the Moon from that on the
Earth.
• Explain that gravitational force: • causes
the planets to orbit the Sun • causes the
Moon and artificial satellites to orbit the
Earth • causes comets to orbit the Sun.
• Use the relationship between orbital
speed, orbital radius and time period:
orbital speed = 2 × π × orbital radius /
time period
v= 2×π×r /T
• Describe how the orbit of a comet differs
from that of a planet.
• Recall that the Solar System is part of
the Milky Way galaxy: • describe a galaxy
as a large collection of billions of stars •
state that the Universe is a large
collection of billions of galaxies.
Resources
Video: none
Powerpoint: none
Textbook:
Page 49 The Solar System
DVD Video clip – Ellipses and orbits
Page 51 Moons
Page 53 Gravitational forces
DVD Video clip – Introduction to the
Hubble telescope
DVD Video clip – How Hubble works
Page 54 Orbital speeds of satellites
Page 55 The Milky Way
DVD Revision check list
Assessment
Textbook
Questions Page 56
Section A6 - Textbook Answers
(Chapter 6) pdf
DVD Multiple choice test
Pages 57 -58 End of Section A
Questions.
Talking paper video – Edexcel
Physics Section A6 Astronomy
Section A6 Question –
Astronomy –. (pdf)
Section A6 Question – mark
scheme – Astronomy. (pdf)
Videos – www.igcsesciencecourses.com
Textbook Ref: Edexcel International GCSE Physics Student Book - Pearson
DVD Video Clips – see resource DVD in textbook.