Module: From Ideas to Implementation

Question 2

Written Paper Section I Question 2 - 2001 HSC

Direction of force on a positively charged particle moving at a specified velocity in a magnetic field, as shown in a diagram.

Question 3

Written Paper Section I Question 3 - 2001 HSC

Temperatures between which mercury always acts as a superconductor, as shown in a graph.

Question 6

Written Paper Section I Question 6 - 2001 HSC

Approximate energy of each photon if the photons released from a microwave transmitter have a wavelength of 3.5 × 10–2m

Question 11

Section I Question 11 - 2002 HSC

Description of an n-type semiconductor.

Question 12

Section I Question 12 - 2002 HSC

Graph showing the change in temperature of a superconducting material as resistance increases.

Question 12

Written Paper Section I Question 12 - 2001 HSC

Statements describing the reason why some materials become superconducting at very low temperatures.

Question 13

Section I Question 13 - 2002 HSC

Function of two components in a dagram of a simple cathode ray tube.

Question 14

Section I Question 14 - 2002 HSC

Reason why most transistors were manufactured using germanium instead of silicon during the early 1950s.

Question 15

Section I Question 15 - 2002 HSC

Method to determine a value for Planck’s constant using data from an experiement during which light of different frequencies was shone onto a metal surface to produce photoelectrons.

Question 24-26

Written Paper Section I Question 24-26 - 2001 HSC

Q24. Describe one way in which an understanding of crystal structure has impacted on science. Outline the methods of X-ray diffraction used by the Braggs to determine the structure of crystals. Q25. Graph the results of measurements of frequency of incident radiation and photoelectron energy taken in an experiment on the photoelectric effect, including the line of best fit. Explain how the reliability of the experiment could be improved. Q26. In the context of semiconductors, explain the concept of electrons and holes.

Question 25

Section I Question 25 - 2002 HSC

For two parallel metal plates that are separated by a fixed distance and have a given potential difference applied; (a) Calculate the magnitude of the electric field strength between the plates. (b) Calculate the magnitude of the electrostatic force acting on an electron between the plates, (c) If a beam of electrons is fired with a given velocity between the plates, calculate the magnitude and direction of the magnetic field that must be applied between the plates to cancel the force and stop the deflection of the electron beam.