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Definitions
Definitions
Definition
NJ Questions
NJ Questions
100
The degree of conformity of a measure to a standard or true value.
What is accuracy.
100
An experiment in which one independent variable is tested by keeping all other independent variable the same.
What is fair test.
100
The number of observation or data.
What is sample size.
100
If you where Juanita which of the three variable would you test first.
What is The independent variable first, the variable that changes.
100
What is Juanita's dependent variable.
What is The flight distance.
200
A decision based on investigation and evidence.
What is conclusion.
200
An idea the can be tested by scientific investigation.
What is hypothesis.
200
Investigation in which all variables are identified and recorded so that the investigation can be repeated.
What is systematic investigation.
200
Suggest how Juanita can keep factors such as wind speed and direction constant in her trials.
What is She should conduct her trials in the gym, where the wind remains constant.
200
Juanita moves the clips and only throws the glider once, with this prove sufficient sample size?
What is More trials are nessecary to determine the best place to add weight to the glider.
300
A controlled variable in an experiment that is the same from trial to trial.
What is constant.
300
A variable that is isolated for study in an experiment in that the experimenter manipulates.
What is independent variable.
300
Factor the changes in an experiment.
What is variable.
300
Why might it be difficult to test just one independent variable at a time.
What is Fair Tests- makes a change in just one independent variable at a time, to see how the changes affects the dependent variable. Many variable are at work and it is difficult to control them all.
300
Why is it important the Juanita write down the location of the clip and the results each time?
What is She must match the location of the clip to the length of the flight and record keeping will let her know which location of the clip works best.
400
A variable that is kept the same from trial to trial.
What is controlled variable.
400
Having the ability the get similar results from multiple trials.
What is reproducible.
400
Name two things juanita must do to know the distance of the shortest and longest flights.
What is In order to know the longest and shortest flights she should measure the distance she measures.
400
Juanita already has a control group, what is it?
What is her control group is the first flight.
400
Examine Juanita's table. Find the unusual values and explain why they stand out from the others.
What is Trials four and five are different because the clip could have moved or broken off.
500
A factor in an experiment that changes as a result of a change in an independent variable.
What is dependent variable.
500
A question used to focus the purpose of a scientific investigation and the procedures used to complete it.
What is research question.
500
Why do you think Juanita decided that this was not the best way to figure out how to improve her glider.
What is she should test one independent variable at a time. I would test the wingspan first for more aerodynamics and more surface area to get more lift.
500
What is Juanita's independent variable?
What is The clip.
500
Suggest one way that Juanita can test the accuracy of the data set for why the clip is 5 cm bellow the nose.
What is She should variry the amount of mass she puts behind the glider