1. Caroline Chisholm College
Physics
Explain the concept of escape velocity in terms of the: – gravitational constant – mass and radius of the planet Outline Newton‘s concept of escape velocity (Jacaranda p.27)

2. Caroline Chisholm College
Physics

3. 107000 km/h orbital v relative to sun
Discuss the effect of the Earth‘s orbital motion and its rotational motion on the launch of a rocket
Caroline Chisholm College
Physics
The best time of day
at best time of year
is the 'LAUNCH WINDOW'
km/h orbital v relative to sun
1700 km/h rotational relative to the sun
TRIP TO THE MOON

4. apparent weight = mg + ma apparent weight
Caroline Chisholm College
Physics
Identify why the term ‘g forces’ is used to explain the forces acting on an astronaut during launch
apparent weight = mg + ma
apparent weight
g-force =
normal true weight
N.B. a ‘6g’ launch may refer to an acceleration of a = (6 x 9.8), giving an apparent weight of 7g !
g-forces
weightlessness
Australia's Wonderland
Jacaranda Figure 2.17

5. Horizontal rocket burn
Analyse the changing acceleration of a rocket during launch in terms of the: – Law of Conservation of Momentum – forces experienced by astronauts
Caroline Chisholm College
Physics
Horizontal rocket burn
For a moving (inertial) frame of reference:
i.e. total momentum is unchanged
Vertical:
external force
Water Rocket Experiment

6. Caroline Chisholm College
Physics

7. Caroline Chisholm College
Physics

8. Caroline Chisholm College
Physics
Identify data sources, gather, analyse and present information on the contribution of one of the following to the development of space exploration: Tsiolkovsky, Oberth, Goddard, Esnault-Pelterie, O‘Neill or von Braun
Tsiolkovsky built the first wind tunnel in Russia which enabled him to observe aerodynamic problems.
He proposed the use of reaction motors that were powered by liquid fuels.
He suggested the use of green plants to provide oxygen to space crew and dispose of carbon dioxide