Which of these is NOT true for systematic errors?

Repeating the observations or increasing the sample size can eliminate them

They arise due to errors in the measuring instruments used.

They are reproducible inaccuracies that are consistently in the same direction.

They arise from the design of the study.

Systematic errors lead to a lack of:

significant digits in the measurement.

gradation of the measuring instrument

Random errors lead to a lack of:

significant digits in the measurement.

gradation of the measuring instrument

Repeated measurements of a quantity can reduce the effects of

both random errors and systematic errors

neither random errors nor random errors

Two students A and B measured the diameter of a wire in mm. Data A: 1.57, 1.58, 1.43, 1.50, 1.42 Average of data A: 1.50 Data B: 1.60, 1.59, 1.59, 1.60, 1.62 Average of data B: 1.60 Actual diameter is known to be 1.50 mm. Whose data is more precise?

B, because the values in his data are close to each other

A, because the values in his data are close to each other

A, because the average value is close to the actual value

B, because the average value is close to the actual value

Two students A and B measured the diameter of a wire in mm. Data A: 1.57, 1.58, 1.43, 1.50, 1.42 Average of data A: 1.50 Data B: 1.60, 1.59, 1.59, 1.60, 1.62 Average of data B: 1.60 Actual diameter is known to be 1.50 mm. Whose data is more accurate?

B, because the average value is close to the actual value

A, because the values in his data are close to each other

B, because the values in his data are close to each other

A, because the average value is close to the actual value

Which of the following is NOT an example of random error?

Measuring length with a metal ruler will give a different result at a cold temperature than at a hot temperature, due to thermal expansion of the material.

Measuring wind velocity depends on the height and time at which a measurement is taken. Multiple readings must be taken and averaged because gusts and changes in direction affect the value.

Readings must be estimated when they fall between marks on a scale or when the thickness of a measurement marking is taken into account.

When taking a volume reading in a flask, you may read the value from a different angle each time.

Which of the following is NOT an example of systematic error?

When weighing yourself on a scale, you position yourself slightly differently each time.

Forgetting to tare or zero or calibrate a balance that produces mass measurements that are always "off" by the same amount.

Not reading the meniscus at eye level for a volume measurement. The value will be consistently low or high, depending on whether the reading is taken from above or below the mark.

An improperly calibrated thermometer may give accurate readings within a certain temperature range, but become inaccurate at higher or lower temperatures.

What is the general trend of this line graph?

The more you mow, the more money you make.

The more you mow, the less money you make.

You make the same amount of money regardless of how long you mow.

Which is the BEST description of biology?

the study of life and living things

the study of humans and animals

the study of humans, plants, and animals

Science Inquiry Skills

Authored by Steve Drake

Science

9th - 11th Grade

CCSS covered

Used 9+ times

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45 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An experiment is being done to determine how light affects the growth of small zinnia plants. One plant is placed in full sunlight, the second in a shaded area, the third in an unlit closet. What is the independent variable in the experiment?

the amount of light

the type of plants

the type of soil

the length of the experiment

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An experiment is being done to determine how light affects the growth of small zinnia plants. One plant is placed in full sunlight, the second in a shaded area, the third in an unlit closet. The hypothesis of this experiment could be:

Plants grow differently under different conditions.

Zinnia plants in direct sunlight grow taller than zinnia plants in little or no sunlight.

Many things, including sunlight, affect the growth of a plant.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

True or False - Experiments should have many independent variables.

TRUE

FALSE

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

True or False - In order to avoid confusing or conflicting results, an experiment should not be repeated.

TRUE

FALSE

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

This variable in an experiment is the one being deliberately changed by the scientist.

dependent variable

independent variable

data

control group

Tags

CCSS.6.EE.A.2C

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Steve wanted to see if the type of fertilizer made sunflowers grow larger. What is the independent variable

Type of fertilizer

Size of sunflower

type of sun flower

Tags

CCSS.6.EE.C.9

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Steve wanted to see if the type of fertilizer made sunflowers grow larger. What is the dependent variable

Type of fertilizer

Size of sunflower

Type of sunflower

Tags

CCSS.6.EE.C.9

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Science Inquiry Skills

An experiment is being done to determine how light affects the growth of small zinnia plants. One plant is placed in full sunlight, the second in a shaded area, the third in an unlit closet. What is the independent variable in the experiment?

An experiment is being done to determine how light affects the growth of small zinnia plants. One plant is placed in full sunlight, the second in a shaded area, the third in an unlit closet. The hypothesis of this experiment could be:

True or False - Experiments should have many independent variables.

True or False - In order to avoid confusing or conflicting results, an experiment should not be repeated.

This variable in an experiment is the one being deliberately changed by the scientist.

Steve wanted to see if the type of fertilizer made sunflowers grow larger. What is the independent variable

Steve wanted to see if the type of fertilizer made sunflowers grow larger. What is the dependent variable

Molly investigated if the age of students caused them to be better drivers. What is the independent variable?

Molly investigated if the age of students caused them to be better drivers. What is the dependent variable?

Sam wanted to know if the color of the chair you sat in when taking a test affected your test grade. What is the dependent variable.

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