M6 Big Ideas Flashcards
Independent variables
The variable in an experiment that is deliberately changed.
Dependent variables
The dependent variable is the variable that you have control over, what you measure.
Data
Known facts, usually in the form of numbers.
Random errors
Small fluctuations in collected data that cannot be eliminated.
Systematic errors
Errors that do not reflect the true value due to problems with the measuring instrument or experimental design.
Accuracy
How close data is to the true value.
Analogue technology
Data is represented in a continuous fashion, such as a dial.
Digital technology
Data is reported by discrete numbers.
Risk assessment
A process to identify and assess any potential dangers in an investigation.
Scientific theory
An explanation for a phenomenon that has been repeatedly tested.
Scientific law
An explanation for what happens, often expressed by a formula.
Scientific model
A representation of a scientific idea designed to make that idea easier to understand.
Law of reflection
The angle of incidence is equal to the angle of reflection.
Law of refraction
The angle when a wave passes from one medium to another depends on the nature of the two mediums.
Radioactivity
When a nucleus spontaneously decays, releasing energy and changing the nature of the nuclei.
GMO
A genetically modified food has had some aspect of its genetic structure changed for a specific purpose.
Newton’s laws and earthquakes
An understanding of Newton’s Laws has allowed engineers to construct buildings that are resistant to damage by earthquakes.
Science!
An organised approach to understanding the world.
