Recitation Quiz 1

Question 1

a causal mathematical relation between variables inferred from the data or through some reasoning process:

Answer 1

law

Question 2

… experiment: scientist collects data that seem important can be accidental/unplanned

Answer 2

observational

Question 3

…: explanation that usually is based on some mechanism that is behind what is going on or it can be a mathematical model describing the phenomenon

Answer 3

hypothesis

Question 4

…. experiment: an experiment that puts a specific hypothesis is put on trial

Answer 4

testing

Question 5

…: clear expectation for outcome of experiment based on hypothesis being tested

Answer 5

prediction

Question 6

generally in order to reject a hypothesis you need to check the additional … you made and determine if they are reasonable

Answer 6

assumption

Question 7

to simplify real objects physicists regard them as single

Answer 7

point like objects

Question 8

the process that we followed to decide when a real object could be considered a point like object is an example of ..

Answer 8

modeling

Question 9

to describe physical phenomena quantitatively and model them mathematically physicists construct … quantities: features or characteristics of phenomena that can be determined experimentally, directly/indirectly

Answer 9

physical quantities

Question 10

determining the value of a physical quantity means comparing the characteristic to an assigned

Answer 10

unit

Question 11

physical quantities that do not contain information about direction are called … quantities

Answer 11

scalar

Question 12

physical quantities that contain information about magnitude and direction are called … quantities

Answer 12

vector

Question 13

… means continually asking yourself the same question when reading the text

Answer 13

interrogation