Experimental Techniques Flashcards
0
Q
What is the Independent Variable
A
This is the value that I as the investigator changes.
1
Q
Experiments are used to test a _____________
A
Hypothesis
2
Q
What is the Control Variable
A
Any value which is kept the same to make the test fair.
3
Q
What is the Dependant Variable
A
This is the value that depends in the independent value.
4
Q
Measurements must be re______
A
Repeated
5
Q
What is the rangw of values
A
A consideration of how big or how small to make measurements.
6
Q
Why do we repeat measurements
A
- To make a test more accurate
- By repeating an experiment we can find an average
- Repeating an experiment can highlight any anomalies
7
Q
What is an anomaly
A
Any result which stands out as being incorrect
8
Q
What should you do to an anomaly on a graph
A
Circle the point and label it “ANOMALY”
9
Q
Should you include anomalies when calculating the average
A
No
10
Q
State 4 things to remember when drawing a graph
A
- Label the axis (including units)
- Do not join the points dot-to-dot
- Draw the line of best fit through a a many points a possible
- Have an equal amount if points on each side of the line.
