Plan Temperature Investigation - Middle School Physical Science
Card 1 of 25
Which option best describes a fair test when comparing temperature change for different masses?
Which option best describes a fair test when comparing temperature change for different masses?
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Same material; same energy input; only mass changes. Controls all variables except the one being tested (mass).
Same material; same energy input; only mass changes. Controls all variables except the one being tested (mass).
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Which graph type is most appropriate for mass (numeric) versus $\Delta T$ (numeric)?
Which graph type is most appropriate for mass (numeric) versus $\Delta T$ (numeric)?
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Scatter plot (or line graph if ordered masses). Shows relationship between continuous numeric variables.
Scatter plot (or line graph if ordered masses). Shows relationship between continuous numeric variables.
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Which data table layout best supports isolating one variable in this investigation?
Which data table layout best supports isolating one variable in this investigation?
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Columns for trial, variable level, $T_i$, $T_f$, and $\Delta T$. Organizes data to calculate and compare temperature changes.
Columns for trial, variable level, $T_i$, $T_f$, and $\Delta T$. Organizes data to calculate and compare temperature changes.
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Identify the control group when testing the effect of material type on temperature change.
Identify the control group when testing the effect of material type on temperature change.
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A chosen reference material kept constant for comparison. Provides a baseline for comparing other materials' effects.
A chosen reference material kept constant for comparison. Provides a baseline for comparing other materials' effects.
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Which measurement tool is most appropriate for determining temperature change in this investigation?
Which measurement tool is most appropriate for determining temperature change in this investigation?
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Thermometer or temperature probe. Measures temperature accurately in degrees Celsius or Fahrenheit.
Thermometer or temperature probe. Measures temperature accurately in degrees Celsius or Fahrenheit.
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What is the independent variable in an investigation testing how mass affects temperature change?
What is the independent variable in an investigation testing how mass affects temperature change?
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Mass of the sample. The variable you change to test its effect on temperature.
Mass of the sample. The variable you change to test its effect on temperature.
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Find and correct the design flaw: different masses are heated for different lengths of time.
Find and correct the design flaw: different masses are heated for different lengths of time.
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Keep heating time and power constant. Energy input must be controlled when testing mass effects.
Keep heating time and power constant. Energy input must be controlled when testing mass effects.
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Which procedure best reduces heat loss to the surroundings during heating of a liquid sample?
Which procedure best reduces heat loss to the surroundings during heating of a liquid sample?
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Use an insulated cup and a lid (calorimeter setup). Minimizes energy transfer to the environment.
Use an insulated cup and a lid (calorimeter setup). Minimizes energy transfer to the environment.
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Which statement is the correct hypothesis format for isolating mass effects on $\Delta T$?
Which statement is the correct hypothesis format for isolating mass effects on $\Delta T$?
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If mass increases, then $\Delta T$ will decrease for the same energy input. Predicts inverse relationship: more mass means less heating.
If mass increases, then $\Delta T$ will decrease for the same energy input. Predicts inverse relationship: more mass means less heating.
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Find and correct the design flaw: different materials are tested using different masses.
Find and correct the design flaw: different materials are tested using different masses.
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Keep mass constant for all materials. Mass must be controlled when testing material effects.
Keep mass constant for all materials. Mass must be controlled when testing material effects.
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Which graph type is most appropriate for material type (categories) versus $\Delta T$ (numeric)?
Which graph type is most appropriate for material type (categories) versus $\Delta T$ (numeric)?
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Bar graph. Compares discrete categories against numeric values.
Bar graph. Compares discrete categories against numeric values.
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Which measurement tool is most appropriate for determining mass in this investigation?
Which measurement tool is most appropriate for determining mass in this investigation?
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Balance (digital or triple-beam). Measures mass accurately in grams or kilograms.
Balance (digital or triple-beam). Measures mass accurately in grams or kilograms.
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Identify the main purpose of repeating trials in a temperature-change investigation.
Identify the main purpose of repeating trials in a temperature-change investigation.
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Increase reliability by reducing random error. Multiple trials average out measurement variations.
Increase reliability by reducing random error. Multiple trials average out measurement variations.
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What is the independent variable in an investigation testing how material type affects temperature change?
What is the independent variable in an investigation testing how material type affects temperature change?
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Material type (substance identity). The variable you change to test its effect on temperature.
Material type (substance identity). The variable you change to test its effect on temperature.
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What is the dependent variable when studying temperature change during heating or cooling?
What is the dependent variable when studying temperature change during heating or cooling?
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Temperature change, $\Delta T$. The variable you measure to see the effect of your changes.
Temperature change, $\Delta T$. The variable you measure to see the effect of your changes.
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What is the formula for temperature change that should be used to analyze the results?
What is the formula for temperature change that should be used to analyze the results?
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$\Delta T = T_f - T_i$. Final temperature minus initial temperature gives the change.
$\Delta T = T_f - T_i$. Final temperature minus initial temperature gives the change.
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Which option best describes a fair test when comparing temperature change for different materials?
Which option best describes a fair test when comparing temperature change for different materials?
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Same mass; same energy input; only material changes. Controls all variables except the one being tested (material).
Same mass; same energy input; only material changes. Controls all variables except the one being tested (material).
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Which variables must be controlled to isolate the effect of mass on temperature change?
Which variables must be controlled to isolate the effect of mass on temperature change?
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Material type and energy added (or heating time/power). Keep these constant so only mass affects the results.
Material type and energy added (or heating time/power). Keep these constant so only mass affects the results.
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Which variables must be controlled to isolate the effect of material type on temperature change?
Which variables must be controlled to isolate the effect of material type on temperature change?
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Mass and energy added (or heating time/power). Keep these constant so only material type affects the results.
Mass and energy added (or heating time/power). Keep these constant so only material type affects the results.
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Which statement correctly defines a controlled variable in this type of investigation?
Which statement correctly defines a controlled variable in this type of investigation?
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A factor kept the same in all trials. Must remain constant to ensure a fair test.
A factor kept the same in all trials. Must remain constant to ensure a fair test.
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Which variables must be controlled when isolating the effect of mass on $\Delta T$?
Which variables must be controlled when isolating the effect of mass on $\Delta T$?
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Material, energy input, starting $T$, container, time. Keep these constant to ensure only mass affects results.
Material, energy input, starting $T$, container, time. Keep these constant to ensure only mass affects results.
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What is the dependent variable in an investigation of heating and temperature change?
What is the dependent variable in an investigation of heating and temperature change?
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Temperature change, $\Delta T$. The variable you measure to see the effect of heating.
Temperature change, $\Delta T$. The variable you measure to see the effect of heating.
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Identify the controlled variable: You compare copper and aluminum using $100,g$ of each.
Identify the controlled variable: You compare copper and aluminum using $100,g$ of each.
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Mass, $100,g$. Mass stays constant when comparing materials.
Mass, $100,g$. Mass stays constant when comparing materials.
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Which instrument should be used to measure mass in a temperature-change investigation?
Which instrument should be used to measure mass in a temperature-change investigation?
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Balance (scale). Measures mass accurately in grams or kilograms.
Balance (scale). Measures mass accurately in grams or kilograms.
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Which option best describes a fair test when comparing two materials' $\Delta T$?
Which option best describes a fair test when comparing two materials' $\Delta T$?
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Same mass and same energy input for both materials. Controls variables so only material type differs.
Same mass and same energy input for both materials. Controls variables so only material type differs.
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