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of 46 available terms

### 43 Matching questions

1. zeros that are at the end of a number and also to the right of the decimal are _________
2. during an experiment if some measurements are taken using one method, and some are taken using another method ______ _______ will result
3. an explanation that is based on prior scientific research or observations and that can be tested
4. zeros between other nonzero digits are ________
5. although each dimension is unique, a dimension can be measured using different ______
6. poor _______ involves errors that can often be corrected
7. heat and temperature
8. a pattern, plan, representation, or description designed to show the structure or working of an object, system, or concept
9. SI uses ________ to accommodate extremes
10. base unit of mass
11. how many SI base units are there?
12. 7 major areas of physics
13. physical quantities that can be described as a combination of length, mass, and time (the three basic dimensions)
14. in an experiment to test a hypothesis, you must change _____ _______ at a time to determine what influences the phenomenon you are observing
15. specific types of repetitive motions
16. the description of what kind of physical quantity is represented by a certain measurement is called ________
17. significant figures are the ones that we know for ______, as well as the first digit that is ________
18. in scientific notation, the measurement is recorded to a power of 10, and all of the figures given are _________
19. a numeric measure of confidence in a measurement or result is known as ________
20. the description of how much of a physical quantity is represented by a certain numerical measurement
21. base unit of time
22. a set of particles or interacting components considered to be a distinct physical entity for the purpose of study
23. measurements of physical quantities must be expressed in units that match the ________ of that quantity
24. motion and its causes, interactions between objets
25. zeros in front of nonzeros are ________
26. ______ _____ ______ estimates can also be used to estimate numbers in situations in which little information is given
27. physicists often use _______ to explain the most fundamental features of various phenomena
28. the degree of exactness of a measurement
29. light
30. three basic dimensions
31. significant figures rule for addition and subtraction
32. an experiment that tests only one factor at a time by using a comparison of a control group with an experimental group
33. many of the models currently used in physics are ________ models
34. physicists use the tools of mathematics to describe measures or pre directed relationships between _______ ________ in a situation
35. a common convention used in science to indicate precision is known as ________ _________
36. particles moving at any speed, including very high speeds
37. measurements used in calculations should have the same _____
38. base unit of length
39. method error can be greatly reduced by _________ the method of taking measurements
40. significant figures rule for multiplication and division
41. behavior of submicroscopic particles
42. electricity, magnetism, and light
43. to make expressions as simple as possible, physicists often use ______ to describe specific quantities in an equation
1. a system
2. b electromagnetism
3. c force, velocity, energy, volume, acceleration
4. d precision
5. e dimensions
6. f round the final answer to the first column from the left containing an estimated digit
7. g not significant (ex. 0.892 has 3 significant figures)
8. h relativity
9. i one variable
10. j letters
11. k certain -- uncertain
12. l 7
13. m standardizing
14. n method error
15. o models
16. p units
17. q physical quantities
18. r dimension
19. s controlled experiment
20. t meter
21. u unit
22. v order-of-magnitude
23. w optics
24. x significant figures
25. y accuracy
26. z length, mass, time
27. aa final answer has the same number of significant figures as the measurement have the smallest number of significant figures
28. ab significant
29. ac thermodynamics
30. ad units (ex. time can be measured in seconds, hours, or years)
31. ae second
32. af significant (ex. 57.00 has 4 significant figures)
33. ag kilogram
34. ah model
35. ai mechanics, thermodynamics, vibrations and wave phenomena, optics, electromagnetism, relativity, quantum mechanics
36. aj mechanics
37. ak uncertainty
38. al quantum mechanics
39. am prefixes
40. an hypothesis
41. ao vibrations and wave phenomena
42. ap mathematical
43. aq significant (ex. 50.3 has 3 significant figures)