Scientific terms Flashcards
1
Q
independent variable
A
a variable that is changed on purpose
2
Q
dependent variable
A
a variable that is measured
3
Q
control variable
A
a variable that is kept the same to ensure there is only one independent variable
4
Q
accuracy
A
how close a measurement is to the true value
5
Q
precision
A
a measure of how close repeat readings are to one another
6
Q
resolution of a device
A
the smallest scale division
7
Q
the two types of errors
A
random, systematic
8
Q
random error
A
a small error caused by variations
9
Q
example of a random error
A
temperature changes
10
Q
systematic error
A
an error caused by a fault with equipment or method
11
Q
example of a systematic error
A
the device gives a non-zero reading when it should be zero
12
Q
How can we reduce random errors?
A
repeat readings
