Day 18 (physics) Flashcards
What is the name of the variable which must remain constant to ensure a valid experiment?
Control
What is the name of the variable which the experimenter chooses to change?
Independent
What is the name of the variable which changes as a result of changing the independent variable?
Dependent
What type of data is close to the true value?
Accurate
What type of data, when repeated, is similar in value?
Precise
How do we define the precision of an instrument?
The smallest measurement it can make
What is the precision of a standard 1m ruler?
1mm
What is the precision of a standard protractor?
1 degree
What is the precision of a standard thermometer?
1 degree celsius
What is an anomalous result?
One which does not fit the pattern
What is a parallax error?
An error made by reading a scale not at eye level
What does a graph showing direct proportion look like
A straight line through the origin
In which of solid liquid and gas do the particles have closest spacing?
Solid
In which of solid liquid and gas do the particles have, on average, the most energy?
Gas
In which of solid liquid can the particles move around freely?
Liquid and gas
