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WorksheetsUnit 8 Quiz II
Total questions: 15
Worksheet time: 8mins
Which of the following is the best description of a hypothesis?
The title of the investigation you're doing
A prediction which you can test
The plan for your investigation
Quantitative or qualitative?
The resistance of a thermistor will decrease when the temperature is increased.
Quantitative
Qualitative
Quantitative or qualitative?
The energy output per gram of bioethanol is 50% lower than that of petrol.
Quantitative
Qualitative
Quantitative or qualitative?
The stopping distance will quadruple if the speed of a car is doubled.
Quantitative
Qualitative
Thermometer A measures to the nearest 0.1 degrees.
Thermometer B measure to the nearest 0.01 degrees.
Which is the correct statement?
Thermometer A is more precise than thermometer B
Thermometer B is more precise than thermometer A
Thermometer A is more accurate than thermometer B
Thermometer B is more accurate than thermometer A
The Penning Trap Mass Spectrometer allows scientists to measure the mass of individual atoms to the nearest 0.000000000000000000000000000000001g.
This piece of equipment is therefore very what?
Accurate
Precise
Error free
Perfect
Which variable goes on the left of a table?
HINT - IT'S THE ONE YOU CAN FILL IN BEFORE YOU DO THE EXPERIMENT
Independent
Dependent
Control
Round the following number to 3 significant figures.
12.39472382784
12.39
12.3
12.4
12.395
Round the following number to 2 significant figures.
7.126427
7.13
7.1
7.2
7.0
What does directly proportional mean?
Increasing the independent variable by a factor increases the dependent variable by the same factor
Increasing the independent variable by a factor has no effect on the dependent variable
Increasing the dependent variable by a factor sometimes increases the dependent variable by the same factor, but not always
What is an inference?
A discussion about results
Reasons an experiment didn't work
A decision to make during an experiment
A deduction that can be made from a scientific conclusion
Identify the anomaly in the data below
2, 9, 9, 9.5, 10, 11, 11, 12
2
9.5
10
12
Are these results concordant?
5.76, 5.82, 5.83
Yes!
No!
Are these results concordant?
14.21, 18.29, 37.55
Yes!
No!
What does accurate mean?
Results are in line with the hypothesis
Results are close to the true value
Results are all the same
Results have only one or two anomalies
