12ISM6 NESA Q's

Question 1

Use the diagram to approximate how long the Archaean eon lasted?

Accepted Answer

1500 million years

Question 2

What method was used to confirm the existence of the Higgs boson?

Accepted Answer

Data analysis from experiments

Question 3

Which technology was used in the discovery of the structure of deoxyribonucleic acid (DNA)?

Accepted Answer

X-ray diffraction

Question 4

A reaction produced 25 mL of gas in 9.13 s. A calculator found 2.73822563 mL/s was made. How should this be recorded?

Accepted Answer

2.7 mL/s

Question 5

Scientists, in different fields, led to the discovery of the structure of (DNA). What structural feature was found?

Accepted Answer

It is a double-stranded helix.

Question 6

What is the scientific basis for the device that Galileo built to observe Jupiter's moons?

Accepted Answer

The law of refraction of light

Question 7

Which of the following conditions would produce a radioactive isotope?

Accepted Answer

Too many protons and neutrons in the atom

Question 8

What should a student record as the measured volume of the liquid?

Accepted Answer

8.4 ± 0.1 mL

Question 9

Sunlight passes through a glass lens producing a continuous spectrum. The colours refract because coloured light;

Accepted Answer

has different wavelengths.

Question 10

What was made possible by the photograph taken by Rosalind Franklin in 1952 using X-ray diffraction?

Accepted Answer

Evidence of the structure of the DNA molecule

Question 11

In an experiment measuring the speed of a car and the distance that it travels. What should be kept constant?

Accepted Answer

The speed at which the car travels

Question 12

Which of the following can be deduced from these results?

Accepted Answer

The rate of decay is not constant over seven days.

Question 13

Which of the following is NOT likely to result in a systematic error in a primary investigation?

Accepted Answer

Reading a measuring cylinder from different angles

Question 14

What is the half-life of the sample measured in this research?

Accepted Answer

2 days

Question 15

Which statement provides the best reason for the reduction in damage caused by earthquakes when this method is used?

Accepted Answer

The inertia of the building reduces the acceleration of the building.

Question 16

Which row correctly matches a technology with the scientific understanding in its development?

Accepted Answer

B

Questions 16