HSC
Space
Motors and Generators
Ideas to Implementation
Age of Silicon
100
3.00x108 ms-2
What is the speed of light, c?
100
A person's apparent weight as a multiple of his/her normal true weight.
What is meant by g-force?
100
A current carrying wire in a magnetic field will accelerate because it experiences a force.
What is the motor effect?
100
It is an evacuated glass chamber with electrodes that enables the production of a stream of electrons.
What is a cathode ray tube?
100
It has optical non-linearities, a high refractive index and the ability to be drawn into fibres.
Why is silica useful?
200
Relate cause and effect, provide reasons why and/or how.
What does explain mean?
200
This will be achieved if the kinetic energy of an object is at least as great as the magnitude of their universal potential energy.
How can escape velocity be achieved?
200
The fingers represent the direction of the conventional current and the thumb represents the direction of the north pole (or the field as it travels through the interior).
What is the solenoid right hand rule?
200
He unified Hertz's unexplained discovery with Planck's mathematical solution to the ultraviolet catastrophe by describing light as streams of photons.
What was Einstein's contribution to quantum theory?
200
It multiplies a voltage signal and "turns it upside down".
What does an inverting amplifier do?
300
Provide reasons for and/or against.
What does discuss mean?
300
The satellite has to have a period of orbit equal to exactly one earth day, and it must be above the equator.
What is needed for a geostationary orbit?
300
The amount of magnetic field passing through a given area.
What is magnetic flux?
300
A photon gives all its energy to a single electron in a metal and liberates it from the lattice completely.
What is the photoelectric effect?
300
It is always the opposite to the input.
What is the output of a NOT gate?
400
We need to remember they have both magnitude and direction!
What do we need to remember about vector calculations?
400
To determine the speed of the earth through the aether.
Why was the Michaelson-Morley experiment performed?
400
The purpose of these is to reduce the size of eddy currents and therefore power loss in the iron core.
What is the purpose of laminates in transformers?
400
It is the spectrum of EMR that is naturally emitted by a body at a temperature above absolute zero.
What is blackbody radiation?
400
The equation for this set of gates is
Z=(NOT A) OR (B AND C)
What is the equation for this set of logic gates?
500
It is best to pick points far away from each other and actually apply the equation using those points.
How should the gradient of a line be found?
500
Two events happening at the same time in one frame of reference may not happen at the same time in another.
What is "relativity of simultaneity"?
500
The induced emf in a circuit is equal in magnitude to the rate at which the magnetic flux through the circuit is changing with time.
What is Faraday's Law (in words)?
500
This creates a donor level just below the conduction band from which electrons can easily be excited to conduct.
What happens when silicon is doped with a group 5 element?
500
If R1 = R2, then the output voltage would be half the input voltage.
If R1 = R2 then how does the output voltage compare to the input voltage in this circuit?