Unit 1 Lesson 2 Test Review
Quiz by Kevin Buhl
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- Q 1/25Score 0Which of these phrases describes a characteristic of a good scientific experiment?29results that can be replicateduncontrolled surroundingssmall sample size for collecting datavariable procedures for obtaining data
25 questions
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- Q1Which of these phrases describes a characteristic of a good scientific experiment?results that can be replicateduncontrolled surroundingssmall sample size for collecting datavariable procedures for obtaining data30s
- Q2A shot-putter hurls the shot with the same force each time, what is the INDEPENDENT variable?force exerted on the shotangle at which shot is throwntime it takes shot to hit the grounddistance traveled by the shot30s
- Q3Based on shotput data, which question is she most likely trying to answer in her experiment?How much force is exerted on the shot?How does the angle of the throw affect how far the shot goesHow does angle affect how long the shot is in the air?How does force on the shot affect how far the shot goes?30s
- Q4Jim hurls the ball with same force each time, what is the DEPENDENT variable in the experiment?distance traveled by the ballforce exerted on the balltime it takes the ball to hit the groundangle at which the ball is thrown30s
- Q5Which Dependent changes based on the independent . describes difference between an independent variable and a dependent variable?Independent does NOT change / dependent does NOT change.Dependent is the control and independent is the result.Dependent changes based on the independent .Dependent does NOT change and the independent does change.30s
- Q6Based on the class’s data, how can they improve the accuracy of the investigation?Use a different ball.Omit trial 4 from the data.Average data to account for the short distance in trial 4.Do more trials.30s
- Q7Why do many experiments include several trials instead of a single trial?Repetition of trials lets you change the procedure.Repetition of trials makes the experiment safer.Repetition of trials increases the accuracy of the results.Repetition of trials increases the sample size.30s
- Q8Which method is best for determining the composition of this area?Dig a long, winding tunnel through the area.Take deep core samples throughout the area.Survey people in the area about their observations.Dig extensively throughout the area.30s
- Q9You are unable to reproduce a startling new discovery. Which provides a likely explanation?The conclusions are based on multiple trials.Other scientists don’t have as sophisticated equipment.An experimental error produced the startling results.The results are announced to the public.30s
- Q10During a scientific investigation, which step will a scientist likely perform first?Collect and organize data.Ask a question for investigation.Defend conclusions drawn from data.Plan an experimental procedure.30s
- Q11Rubber band stretches when suspend weight from it. Based on data, which variable is DEPENDENT?stretchtimeweightband type30s
- Q12Which conclusion best describes the results shown on the graph?The amount of stretch stays the same as weights are added.The amount of stretch is unaffected as weights are added.The amount of stretch increases as more weights are added.The stretch gradually decreases as more weights are added.30s
- Q13During a scientific investigation, which step occurs after a scientist collects data?draw conclusionsplan the experimentfollow the procedureform the hypothesis30s
- Q14Which scientific investigation does not include dependent and independent variables?study effect of temperature on bacterial reproduction ratesobserving and counting bird populationsinvestigate effect of mass on speed which an object fallsModel’s air resistance at different speeds in a wind tunnel30s
- Q15David measures the temperature for 15 min. Which equipment indicates the temperature?thermometergraduated cylinderBunsen burnerclock30s
