A program that causes random illness of computer software
A program that can replicate itself
A program that disables internet-related software
A program that infects a computer with a cold
Who is the Chief Science Advisor to the Prime Minister of New Zealand?
Sir Peter Blake
Sir Peter Dunne
Sir Peter Gluckman
Sir Peter Dearden
Brushtail possums are considered a pest in New Zealand.Why?
They are carriers of bovine tuberculosis
They damage native trees
They feed on the eggs of native birds
All of the above
Sample year 12 questions :
A radioactive element X decays with a half-life of 10,000 years. If a sample of X initially weighs 4 g, what will be its mass after 60 000 years?
Chemical reactions in cells are catalysed by enzymes.Which of the following statements about enzymes is FALSE?
All enzymes require cofactors for activity
All enzymes are built from amino acids
Enzymatic reactions are sensitive to pH and temperature
Reaction rates are affected by both the concentrations of substrates and enzymes
A geological map shows the contacts between different rock layers.The contacts parallel the topographic contours of the land surface. Does this mean the contacts are:
Sample year 13 questions
Darwin predicted that bipedalism preceded brain expansion and this is supported by the fossil record of the Australopithecines. Which of the following statements regarding the Australopithecines is FALSE?
The Australopithecines were bipedal
The Australopithecines' brains were similar in size to that of a chimpanzee
The Australopithecines were the first pre-humans to make stone tools
The canines of Australopithecines were reduced and non-protruding
Astronauts in orbit about earth are often said to be weightless. If an astronaut has a mass of 100 kg on earth, the gravitational force is 980 N.What (approximately) is the gravitational force on the astronaut when in orbit 300 km above earth's surface (in N)?
The specific heat capacity of H2(g) is 14.3 J K-1 mol-1.Which of the following is correct?
Heating 1 mole of H2(g) by 10 K requires 14.3 J of energy
Heating 1 g of H2(g) by 0.5 K requires 14.3 J of energy
Heating 1 g of H2(g) by 1 K requires 14.3 J of energy
Heating 2 moles of H2(g) by 1 K requires 14.3 J of energy