Forces And Graphs Flashcards
What is an Anomaly?
A result which does not fit the pattern or trend.
What do you call the variable which is deliberately changed in an experiment?
Independent variable
A control variable is……
Kept the same in an experiment, to make it a fair test.
What do you call variables that have a numerical value e.g temperature, current, length?
Continuous variables
What is the variable called which is measured in an investigation?
Dependent variable
What is a categoric variable?
One that does not have numbers e.g. Metal, copper, iron, magnesium
What happens to the distance when you drop a brass ball and a steel ball down a track?
The brass ball is heavier so it goes further and faster.
In an experiment to find out the what effect changing the size of a nappy has on the amount of water it absorbs, what is the continuous variable?
The water absorbed
In the same nappy experiment, what is the categoric variable?
nappy size
How can you make the Nappy test fair…. What are the control variables?
Same brand of nappy. Same child. Same drink.
Accuracy is…..
How close a result is to a true value.
What is the definition of reproducible?
If someone else does an experiment and gets similar results.
What do you call it when you do an experiment more than once and you get similar results?
Repeatable
What is resolution?
The smallest measurement on a scale
How would you describe a good resolution?
A good resolution measures smaller than your smallest measure.
