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Quiz #1 - Experimental Design & Graphical Methods

Total questions: 46

Worksheet time: 2hrs 32mins

Name
Class
Date
1.
When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer?
a)
Dependent
b)
Independent
c)
Control
d)
Compound
2.
What are all the things that are kept the same in an experiment?
a)
controls
b)
data
c)
constants
d)
independent variables
3.

What are the number of times each level of the independent variable is tested?

a)

constants

b)

control

c)

trials

d)

dependent variable

4.
The type of variable that you change or manipulate in an experiment.  It is what you are testing.
a)
Independent
b)
Dependent
c)
Control
5.

The vertical axis of a line graph is called the __________.

a)

slope

b)

line of best fit

c)

x-axis

d)

y-axis

6.

Find the slope of the line for the graph.

a)

1

b)

4

c)

0

d)

8

7.

Find the slope of the line for the graph.

a)

-1

b)

-4

c)

0

d)

-8

8.

Find the slope of the line for the graph.

a)

-1

b)

-4

c)

0

d)

-8

9.
The purpose of graphs, charts and tables is to
a)
help scientists visualize results from an experiment.
b)
make the experiment look nice.
c)
practice what I learned in Math class.
d)
Practice my drawing skills.
10.

The line graph shows five years of data about a dog. What information does the graph show?

a)

How the mass of the dog changed.

b)

How much food the dog consumed.

c)

What kinds of food the dog consumed.

d)

When the dog was measured each month.

11.

  Is defined as the probability that a product, system, or service will perform its intended function adequately for a specified period of time.

a)

Accuracy

b)

Authenticity

c)

   Reliability

12.
You know 1000 mg = 1 g.  Convert 2.5 grams into milligrams.
a)
25 mg
b)
25,000 mg
c)
250 mg
d)
2500 mg
13.
You know that 12 inches = 1 foot.  Convert 60 inches to feet.
a)
720 feet
b)
5 feet
c)
5 inches
d)
72 feet
14.

Convert 50 miles/h into m/s using these relationships


1 mile = 1609.34 meters "

1 hr = 60 minutes

1 minute = 60 seconds

a)

22.33 m/s

b)

80467 meters

c)

13411 m/s

15.

Match the expressions to their resulting units.

a)
1.

yards

b)
2.

centimeters

c)
3.

kilometers

d)
4.

meters

e)
5.

inches

16.
Gas costs $3.05 a gallon, and your car travels at 27 miles for each gallon of gas. How far can you travel in your car with $95 in your pocket?
a)
11 miles
b)
840 miles
c)
7800 miles
d)
870 miles
17.
A bicycle has a speed of 6 m/s. What is its speed in km/h?  (1 km=1000 m)
a)
21.6 km/h
b)
16.67 km/h
c)
2.16 km/h
d)
1.67 km/h
18.
A passenger jet has a speed of 900 km/h.
What is its speed in m/s?
(1 km = 1000 m)
a)
250 m/s
b)
324 m/s
c)
1,500 m/s
d)
2,500 m/s
19.

Match the expressions to their resulting units.

a)
1.

yards

b)
2.

centimeters

c)
3.

kilometers

d)
4.

meters

e)
5.

inches

20.

What is the equivalent of 5 fl oz per minute in gallons per hour?

a)

4.68 gallons per hour

b)

18.75 gallons per hour

c)

2.34 gallons per hour

d)

38,400 gallons per hour

21.

What is the SI unit for mass?

a)

kilograms

b)

pounds

c)

meters

d)

liters

22.

What two units can be used when measuring volume

a)

grams and seconds

b)

cubic meters and liters

c)

milliliters and centimeters

d)

cubic centimeters and kelvin

23.

What is the SI unit for length?

a)

meter

b)

mass

c)

liter

d)

second

24.

1000 grams = _____kilograms

a)

1

b)

100

c)

1000

d)

10

25.

What type of correlation does the graph show?

a)

Positive Correlation

b)

Negative Correlation

c)

No Correlation

26.

What type of correlation does the graph show?

a)

Positive Correlation

b)

Negative Correlation

c)

No Correlation

27.

What type of correlation does the graph show?

a)

Positive Correlation

b)

Negative Correlation

c)

No Correlation

28.

Which type of correlation most likely represents the relationship between number of hours studied for an exam and the grade on the exam?

a)

Positive Correlation

b)

Negative Correlation

c)

No Correlation

29.

Which type of correlation most likely represents the relationship between distance traveled to school and number of shirts owned?

a)

Positive Correlation

b)

Negative Correlation

c)

No Correlation

30.

Which type of correlation most likely represents the relationship between amount spent on heating and temperature?

a)

Positive Correlation

b)

Negative Correlation

c)

No Correlation

31.

Which graph depicts the strongest positive correlation?

a)
b)
c)
d)
32.

A positive correlation is a relationship between two variables such that as one variable decreases the other decreases.

a)

True

b)

False

33.

A negative correlation is a relationship between two variables such that as one variable increases the other decreases.

a)

True

b)

False

34.

Which variables are most likely positively correlated with temperature? Select ALL that apply.

a)

sale of ice cream

b)

number of boating accidents

c)

sales of winter clothing

d)

sales of televisions

35.

Which variables are most likely negatively correlated with screen time? Select ALL that apply.

a)

number of texts sent

b)

amount of time asleep

c)

amount of time playing video games

d)

amount of time playing sports

36.
Which scatter plot shows no relationship?
a)
Graph A
b)
Graph B
c)
Graph C
d)
Graph D
37.
What is the correlation between length of running start and distance of jump?
a)
positive:  the further you run the further you jump
b)
negative: the less you run the less distance of your jump
c)
positive: the further your running start the less your distance
38.
This refers how close a group of measurements are to eachother
a)
estimate
b)
accuracy
c)
precision
d)
mean
39.
This refers to how close the measurement is to the true or accepted value
a)
estimate
b)
accuracy
c)
precision
d)
mean
40.

The​ (a)   is what you change or the ​ (b)   while the ​ (c)   is the ​ (d)   of that change.

Choose from the below words
independent variable
dependent variable
cause
effect
41.

Why is it important to collect multiple data points when measuring speed in an experiment?

a)

To make the experiment more time-consuming

b)

To ensure the results are accurate and reliable by averaging out any anomalies

c)

 To reduce the amount of data analysis required

d)

To confuse the students

42.

  1. What is a potential issue with collecting only one data point over a series of three trials in an experiment measuring speed?

a)
It may lead to inaccurate results due to lack of variability and error accounting.
b)

It simplifies the data analysis process (i.e., the process should be hard)

c)

It ensures inconsistent results across all three trials

d)
It provides a comprehensive overview of the data.
43.

How does collecting multiple data points help in identifying anomalies in an experiment measuring speed?

a)
Multiple data points only complicate the analysis process.
b)
Collecting a single data point is sufficient to identify anomalies.
c)

Collecting multiple data points helps identify anomalies by establishing a baseline for expected speed measurements, allowing for the detection of significant deviations.

d)
Anomalies can be identified without any data collection.
44.

Why is it inadequate to collect only one data point in an experiment measuring speed?

a)
One data point is sufficient to determine speed accurately.
b)
Collecting one data point eliminates the need for further testing.
c)
A single measurement is always reliable regardless of conditions.
d)

It is inadequate because one data point does not provide a reliable measure of speed due to potential variability and measurement errors.

45.

An experimenter measures the speed of a car by recording the time it takes to travel a fixed distance. They only record the time once for each trial. What is the main issue with this approach?

a)
The experimenter measures the distance instead of the time.
b)
The approach lacks reliability due to only recording one time per trial.
c)
Recording multiple times would complicate the analysis.
d)
The fixed distance is too short to measure speed accurately.
46.

In an experiment to measure the speed of sound, the experimenter uses a stopwatch to measure the time it takes for a sound to travel a known distance. What is the flaw in this approach?

a)
The stopwatch may not be calibrated correctly.
b)
The measurement may include reaction time and not just the travel time of sound.
c)
The sound may be affected by wind conditions.
d)
The distance may not be accurately measured.

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