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Physical Science > Chapter 1 Test Notes > Flashcards

Chapter 1 Test Notes Flashcards

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1
Q

Define Physical Science:

A

Study of non-living matter and energy

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2
Q

What are the 2 branches of Physical Science?

A

Physics and Chemistry

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3
Q

What is the SI unit?

A

Is the modernized version of the metric system,standard international unit

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4
Q

What is the SI Unit for Mass?

A

Kilogram kg

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5
Q

What is the SI Unit for Intensity of Light?

A

candela cd

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6
Q

What is the SI Unit for Volume?

A

liter L

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7
Q

What is the SI Unit for Temperature?

A

Kelvin K

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8
Q

What is the SI Unit for Electrical Current?

A

ampere A

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9
Q

What is the SI Unit for Length?

A

meter m

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10
Q

What is the SI Unit for the amount of substance?

A

mole mol

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11
Q

What is the SI Unit for time?

A

second s

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12
Q

Explain the difference between a base SI unit and a derivative unit. Give an example.

A

The base SI unit is from 10’s while the derivative is by 7’s. An example is energy and pressure

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13
Q

What are the first 3 steps in the Scientific Inquiry?

A
  1. Ask a question
  2. Research
  3. Form a hypothesis
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14
Q

What are the last 4 steps in the scientific Inquiry?

A
  1. Develop an experiment
  2. Collect Data
  3. Draw a conclusion
  4. Repeat
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15
Q

Explain the difference between accuracy and precision.

A

Precision is the degree of exact measurement. Accuracy compares a measurement to the accepted or excepted values of measurement.

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16
Q

What evidence is there that we live in an orderly world?

A

Everything stays the same it doesn’t change. Examples are the life cycle, gravity,planets moving around the sun

17
Q

Explain the difference between a theory and a law.

A

Theory is a model that explains the phenomenon and law is the math that describes the phenomenon.

18
Q

Define a workable model in physical science. Give an example.

A

Describes/explains an observation and makes accurate predictions.
Example: heliocentric theory sun in the middle

19
Q

Essay: What are the benefits of using the SI system of measurement over the US customary system?

A

The SI system is based on 10, standardized, has simpler units, and is international. While the US customary is just in the US

Physical Science (4 decks)

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