Unit 1

Question 0

3 characteristics of a hypothesis

Answer 0

Testable- able to test it
Falsifiable- possible measurement that could prove it wrong
Mechanism- include explanation of how something happens

Question 1

Definition hypothesis

Answer 1

A proposed explanation for a phenomenon

Question 2

Prediction

Answer 2

Used to test hypothesis

If… (Hypothesis) then… (Expected results)

Question 3

Independent Variable

Answer 3

Values selected by experimenter and determines results

X axis

Question 4

Dependent Variable

Answer 4

Measured as a result and dependent on independent variable

Y axis

Question 5

Control Group

Answer 5

Samples or trials that get no experimental treatment that other groups are compared to

Question 6

Constant

Answer 6

Variable that remains the same for all trials

Question 7

Why SI system is better

Answer 7

Universal system used by scientists and engineers

Base of 10

Question 8

Base units-

m, k, s, L

Answer 8

Meter, Kelvin, Second, and Liter

Question 9

Base unit definition

Answer 9

7 fundamental physical qualities
Length
Mass
Temperature
Luminous intensity
Electric current
Liquid
Time

Question 10

Derived unit

Answer 10

Combinations of base units

Density=Mass/Volume Kg/L

Question 11

Qualitative

Answer 11

Subjective

Observations describe apparent qualities

Question 12

Quantitative

Answer 12

Objective

Observations measure quantities

Question 13

Homeostasis

Answer 13

The tendency of and organism to maintain internal stability

Question 14

How to find total magnification

Answer 14

Ocular x Objective

Question 15

Compound light microscope

Answer 15

Compound- more than one lens (ours has two convex lenses)

Light- light transmits image to your eye

Question 16

Simple Reflexes

Answer 16

Instinctual behavior

Automatic response to specific stimuli processed by spinal cord

Question 17

Fixed Action

Answer 17

Instinctual behavior

Complex behaviors that are present at birth, but continue when stimulus is removed

Question 18

Imprinting

Answer 18

Instinctual behavior

When an animal learns in a short period of time to recognize a individual, object, or location

Question 19

Habituation

Answer 19

Learned behavior

Occurs when a stimulus that usually causes a response is repeated so much it is ignored

Question 20

Classic Conditioning

Answer 20

Conditioning- learned

Learning about environment
Pavlov’s dog

Question 21

Operant conditioning

Answer 21

Learned- conditioning

Trial and error

Question 22

Conditioning

Answer 22

Learned behavior

Learning- associating a stimulus with a set behavior

Question 23

Extinction

Answer 23

Learned

Unlearning learned behaviors

Question 24

Circadian Rhythm

Answer 24

Internal clock
Rhythms traced to light and day
sleep and wakefulness, foraging times, and metabolic rate

Question 25

Accuracy

Answer 25

Correctness of a measurement- hitting bulls eye

Better then precise because it is more correct

Question 26

Precision

Answer 26

Degree of detail- darts fall close together
Tools limit if they don’t have smaller units of measure
Uncertainty & range- there is a range

Add digit onto the end (n-5 to n+4)
25 range is 24.5 to 25.4
24.75 range is 24.745 to 24.754

Question 27

Micro

Answer 27

10-6

Question 28

Milli

Answer 28

10-3

Question 29

Centi

Answer 29

10-2

Question 30

Deci

Answer 30

10-1

Question 31

Kilo

Answer 31

10 3

Question 32

Mega

Answer 32

10 6

Question 33

Giga

Answer 33

10 9