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WorksheetsLesson 2a/2b Measurement and Sig Figs
Total questions: 83
Worksheet time: 21hrs 45mins
A variable that you change or manipulate to affect the results in an investigation is the __________________?
control variable
dependent variable
independent variable
research variable
The variable in an investigation that you are measuring is the _________________?
control variable
independent variable
dependent variable
research variable
Question: Why is my room warmer during the day than at night?
What is a test/independent variable?
The variable that is changed/manipulated in the experiment
The variable that is being observed/measured in the experiment
Elements that are kept constant/unchanged in the experiment
The group that does not receive the manipulation; used to compare
The groups that do receive the manipulation
What is a control group?
The variable that is changed/manipulated in the experiment
The variable that is being observed/measured in the experiment
Elements that are kept constant/unchanged in the experiment
The group that does not receive the manipulation; used to compare
The groups that do receive the manipulation
What is an experimental group?
The variable that is changed/manipulated in the experiment
The variable that is being observed/measured in the experiment
Elements that are kept constant/unchanged in the experiment
The group that does not receive the manipulation; used to compare
The groups that do receive the manipulation
What is a outcome/dependent variable?
The variable that is changed/manipulated in the experiment
The variable that is being observed/measured in the experiment
Elements that are kept constant/unchanged in the experiment
The group that does not receive the manipulation; used to compare
The groups that do receive the manipulation
What is a control variable/constant?
The variable that is changed/manipulated in the experiment
The variable that is being observed/measured in the experiment
Elements that are kept constant/unchanged in the experiment
The group that does not receive the manipulation; used to compare
The groups that do receive the manipulation
Which word is associated with the test/independent variable?
Change
Measure
Which word is associated with the outcome/dependent variable?
Change
Measure
What is the test/independent variable in this experiment?
The height of the plants
The color of the lightbulbs
What is the outcome/dependent variable in this experiment?
The height of the plants
The color of the light bulbs
What is the control group in this experiment?
The group with the red light
The group with the white light
The group with the blue light
The group with the green light
Which of the following is a control variable/constant in this experiment?
The color of the light
The type of plant
What is the length of the object in centimeters?
3.40 cm
4.3 cm
3.5 cm
1 1/4 inches
What is the volume of the liquid in this graduated cylinder?
19 mL
35 mL
24.0 mL
26.0 mL
Which answer best approximates the metric temperature reading on the thermometer?
82.9 F
86 C
30 C
30.0 C
Read the graduated cylinder to the appropriate precision. Which answer is most appropriate?
6.3 mL
6 mL
6.61mL
6.31 mL
Which is the correct temperature for this thermometer?
58.4 oC
57.4 oC
50.74 oC
57 oC
What is the length of the screw?
5.0cm
5.1cm
5.11cm
51mm
Roni measured the weight of her agenda. The unit she used was ____________.
liter
meter
gram
Newton
Cassie measured the diameter of a quarter. What unit did she use?
meter
kilometer
millimeter
centimeter
Toni put a cup of pennies on a triple beam balance and got 23 __________. What is the unit he should use?
liter
meter
gram
Newton
Sheri put some water in a graduated cylinder and then looked at it at eye level at the meniscus and saw it was 25 mL. What measurement did she get?
mass
volume
weight
length, distance
Density has the following formula? (Remember that we love density - NOT) - draw it out if you don't remember
mass divided by volume
volume divided by mass
weight divided by mass
mass times volume
The variable that I change, like adding fertilizer to a plant, is what variable?
independent variable
dependent variable
constant
control
The variable that is usually written on the y axis - the one that we measure to get our Data is -
independent variable
dependent variable
control
constant
Round the following numbers to the number indicated: 345 (2 s.f.)
(a)
Multiply and round to 3 significant digits.
23 X 12.4
28
285.20
285
285.2
How close a measurement is to the accepted value is called..
Accuracy
Precision
Significant
Estimate
Volume?
63.50 mL
63.5 mL
63.55 mL
6 mL
Measurements: 12.3, 14.5, 10.1, 16.9
True Value: 25.0
These measurements are…
Accurate, but not precise
Precise, but not accurate
Both precise and accurate
Neither precise nor accurate
7,000 mL = ____ L
70 L
700 L
7 L
0.07 L
When Joselyn went to the store she bought 2.7kg of salt water taffy. What does Joselyn need to do to find out how many grams she bought?
Divide by 1000
Multiply by 1000
Divide by 100
Multiply by 100
What is the correct measurement of the red line?
2 cm
2.3 cm
2.5 cm
2.30 cm
What kind of glassware is this?
Beaker
Burette
Graduated Cylinder
Flask
What kind of glassware is pictured here?
Flask
Beaker
Graduated Cylinder
Pipette
