inv task 3 mod 6 Flashcards
(29 cards)
How does technology enhance scientific investigation?
By facilitating accurate data collection, processing, and analysis
What can limit scientific investigation in terms of technology?
Improper calibration or inappropriate selection of technology
What is calibration in the context of scientific instruments?
Correlating the readings of an instrument against a known standard
List three types of errors in measuring devices.
- Random errors
- Systematic errors
- Gross errors
Define speed in terms of physical quantities.
Speed is a scalar quantity that considers only magnitude
What are the characteristics of scientific knowledge?
It seeks to develop explanations of natural phenomena
What are the characteristics of technology?
Relates to human adaptations to environments and problem-solving
List examples of technologies used for data collection.
- Thermometers
- Data loggers
- Stopwatches
- Spectrophotometers
- Chromatographers
What must be consulted before using chemicals in a laboratory?
The Material Safety Data Sheet (MSDS)
What is the purpose of Work Health and Safety guidelines?
To ensure safe working conditions and practices in laboratories
What aspect of technology can impact the accuracy of data collection?
The calibration and appropriateness of the technology for the research
How do random errors differ from systematic errors?
Random errors are unpredictable; systematic errors are constant and in the same direction
What is the effect of a catalyst in a chemical reaction?
It lowers the activation energy, increasing the reaction rate
What is the definition of average speed?
Average speed is a practical overall value for how fast something moved, accounting for variations in actual movement.
List factors influencing actual movement.
- Friction
- Trajectory angle
- Mass of the object
- Forces applied
- Gravitational pull
True or False: Speed is a vector quantity.
False
What distinguishes speed from velocity?
Speed is scalar (only magnitude) while velocity is vector (magnitude and direction).
How do technological advancements impact scientific discoveries?
Technological advancements lead to new scientific discoveries, better understanding of theories and laws, and create new needs in society.
What is the feedback loop between science and technology?
Science → Technology → New Discoveries → More Science → Newer Technology
Explain the role of technology in collecting scientific data.
Technologies help collect and interpret data, consolidate scientific theories, and support the development of models and laws.
What technology helped determine the structure of DNA?
X-ray crystallography
What impact did computer modelling have on understanding Earth’s geological history?
Visualises long-term geological processes and predicts future events.
What was the significance of Rutherford’s gold foil experiment?
It disproved the plum pudding model and led to the discovery of the nucleus.
What technology was used to discover the Higgs boson?
Large Hadron Collider (LHC)
