Practice test Unit 1 Flashcards

(38 cards)

1
Q

Who came up with laws about motion, including gravity, and published a book called principia

A

Isaac newton 

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2
Q

What is matter?

A

Anything that occupies space and has a mass

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3
Q

Who discovered Electrons?

A

J.J Thompson

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4
Q

Who was the first man to organize the periodic table of elements?

A

Dmitri Mendeleev

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5
Q

Who propose that all matter was made up of atoms?

A

John dalton

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6
Q

What is accuracy?

A

Describes how close your measured value is to a true or known value.

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7
Q

What is bias

A

A process where the scientist influences the Influences the results to obtain a desired outcome 

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8
Q

What is an experiment?

A

A process that uses controlled conditions to test the hypothesis

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9
Q

What is critical thinking?

A

The process of making a reasonable judgment that is both logical and well thought out.

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10
Q

What is Measurement?

A

Taking what you observed, and expressing it as a number 

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11
Q

What is energy?

A

A property that can be converted or transferred from one object to another

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12
Q

What is a trend?

A

The general direction in which a graph is moving

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13
Q

What is science? 

A

A process used to gain knowledge about something through observation and investigation

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14
Q

What is scientific theory?

A

The explanation of a phenomenon, through the use of several investigations of a scientific method

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15
Q

Ancient Egyptian’s practice chemistry when they did __________?

A

Metallurgy

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16
Q

What is a scientific law?

A

A statement that describes what is happening in nature based on repeated experiments under the same conditions

17
Q

What is an inference? 

A

An Interpretation of some thing you have observed 

18
Q

Alicia Is doing research on the types of insects that live in her neighborhood. What type of research is this? 

A

Descriptive research

19
Q

Which portion of the sentence represents a sample?
Mark has a rock collection with over 605 rocks. Of those rocks, 225 rocks are a type of metamorphic rock.

20
Q

The branch of science that focuses on the study of matter and energy is called __________?

A

Physical science

21
Q

The study of composition and structure of matter, and how matter undergoes chemical reactions is ____?

22
Q

Before it was an official type of science_______ Was a blend of alchemy and astronomy.

23
Q

Archimedes and Isaac Newton both used _____ To explain their observations.

24
Q

What step of the scientific method is this?
The average birth weight of the chimpanzees in the study are shown in the circle graph.

A

Analyze data and draw conclusions

25
What step of the scientific method is this? How does light intensity before bed affect one’s ability to sleep?
Problem question
26
What step of the scientific method is this? Look at how the ground Forms of crack right there. I wonder how that happened?
Observation
27
_______ Is the unit used to measure length
Meters
28
______ Is the unit used to measure temperature
Celsius
29
Is a unit used to measure volume in liquid
Liters 
30
It’s a unit used to measure volume in solids 
Cm3
31
Is the unit used to measure mass or weight?
Grams
32
_______ Is the unit used to measure density 
G/cm3
33
Logic that starts with a small observation, or question, and ends in a broad generalization or theory is called ___________ reasoning
Inductive
34
To ________ Is to share with others all that you discovered 
Communicate
35
______ Is the group objects together, based on a shared attribute 
Classify
36
What type of experiment did Martina perform?
Applied
37
What is the correct number of significant figures of 0.0026?
2
38
What is the correct number of significant figures for 60?
1