Physics Unit 1 Flashcards

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1
Q

The fact that the results are iterative prompts the physicist to propose a(n) ___ or a tested idea that seems to explain his observations.

A

Theory

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2
Q

The physicist conducts a(n) ___, or a series of tests to prove or disprove the possible explanation she has published.

A

experiment

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3
Q

The number 0.0725 has ___ significant figures.

A

3

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4
Q

kilometers

A

one thousand meters

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5
Q

milligram

A

one thousandth of a gram

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6
Q

nanosecond

A

one billionth of a second

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7
Q

A young girl tells her father that she is interested in natural things; in return, he says, “Maybe you should study ___.”

A

Physics

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8
Q

The importance of experimentation was stressed first by ___.

A

Galileo Galilei

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9
Q

In the number 5,000, the zeros are ___.

A

not significant

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10
Q

The first Periodic Table was created by ___.

A

Dmitri Mendeleev

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11
Q

In the number 76.150, the zero is ___.

A

significant

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12
Q

A person sees with her eyes that an asteroid is approaching the earth at a certain angle. This is a(n) ____.

A

observation

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13
Q

If you say that 2.2 pounds is ___ to 1 kg in quantity, you are saying that 2.2 pounds are the same as 1 kg.

A

equivalent

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14
Q

Much of the quantitative data is written in the language of science or ___.

A

mathematics

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15
Q

After repeating many experiments, the physicist finds the results to be ___ or occurring over and over.

A

iterative

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16
Q

In a physics experiment, you measure time, mass, temperature, and electrical current. The SI units you would express your data in the correct order are:

A

seconds, grams, kelvin, amperes

17
Q

While conducting numerous experiments, you gather ___ data or data that is measurable in quantity.

A

quantative

18
Q

By definition a baseball is a sphere formed by yarn wound around a small core of cork, rubber or similar material, covered with two stripes of white horsehide or cowhide tightly stretched together. If you know that a baseball’s mass is 140g and its volume is 200 cm3, you may find its ___.

A

density

19
Q

All ___ numbers are significant.

A

non zero

20
Q

You have the number 0.045. The zero after the decimal is ___.

A

non significant

21
Q

The amazing man who invented calculus, promoted the scientific method, created the three laws of motion, and also came up with important laws about gravity and planetary motion was ___.

A

Sir Isaac Newton

22
Q

A man who is the forefront of creating the field of chemistry was ___.

A

Robert Boyle

23
Q

Part of the theory is a mathematical equation which is a(n) ___, or a simple, factual, and precise statement that describes an action or set of actions that has always been observed to be true.

A

scientific law

24
Q

During your physics lab, you drop an electrical wire in a beaker containing water. You should ___.

A

inform your supervisor and other students to not touch the wire or the water

25
Q

What are the 6 steps of the scientific method?

A

Observation, Problem Question, Hypotheses, Experimentation, Analyze Data and Draw Conclusions, Report

26
Q

Because the physicist used her five senses, the data that she collected is ___.

A

qualitative

27
Q

The physicist creates a(n) ___, or possible explanation to the phenomenon she has observed.

A

hypothesis

28
Q

You are informed by your physics teacher that you will be performing an experiment involving electricity. Among the lab equipment you might use would be ___.

A

batteries, resistors, and electroscope

29
Q

You are told that a hydrofoil, a boat that actually travels above the water, moves 83 km in 75 minutes. This information can help you figure out the derived unit for ___.

A

speed