Physics Unit 1 Flashcards
The fact that the results are iterative prompts the physicist to propose a(n) ___ or a tested idea that seems to explain his observations.
Theory
The physicist conducts a(n) ___, or a series of tests to prove or disprove the possible explanation she has published.
experiment
The number 0.0725 has ___ significant figures.
3
kilometers
one thousand meters
milligram
one thousandth of a gram
nanosecond
one billionth of a second
A young girl tells her father that she is interested in natural things; in return, he says, “Maybe you should study ___.”
Physics
The importance of experimentation was stressed first by ___.
Galileo Galilei
In the number 5,000, the zeros are ___.
not significant
The first Periodic Table was created by ___.
Dmitri Mendeleev
In the number 76.150, the zero is ___.
significant
A person sees with her eyes that an asteroid is approaching the earth at a certain angle. This is a(n) ____.
observation
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.
equivalent
Much of the quantitative data is written in the language of science or ___.
mathematics
After repeating many experiments, the physicist finds the results to be ___ or occurring over and over.
iterative
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:
seconds, grams, kelvin, amperes
While conducting numerous experiments, you gather ___ data or data that is measurable in quantity.
quantative
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 ___.
density
All ___ numbers are significant.
non zero
You have the number 0.045. The zero after the decimal is ___.
non significant
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 ___.
Sir Isaac Newton
A man who is the forefront of creating the field of chemistry was ___.
Robert Boyle
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.
scientific law
During your physics lab, you drop an electrical wire in a beaker containing water. You should ___.
inform your supervisor and other students to not touch the wire or the water
What are the 6 steps of the scientific method?
Observation, Problem Question, Hypotheses, Experimentation, Analyze Data and Draw Conclusions, Report
Because the physicist used her five senses, the data that she collected is ___.
qualitative
The physicist creates a(n) ___, or possible explanation to the phenomenon she has observed.
hypothesis
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 ___.
batteries, resistors, and electroscope
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 ___.
speed
