chapter 1 test

Question 1

metrics

Answer 1

kilo, hecto, deca, base, deci, cents, milli

Question 2

qualitative

Answer 2

used adjectives to describe an observation

Question 3

quantitative

Answer 3

unused numbers to describe an observation

Question 4

precision

Answer 4

the digress to which experimental results differ

Question 5

accuracy

Answer 5

how close the results are to standard

Question 6

calibration

Answer 6

setting a measurement device to zero or to a standard

Question 7

does density change

Answer 7

no

Question 8

density

Answer 8

amount of matter in a gives space

Question 9

density equation

Answer 9

mass/volume

Question 10

mass

Answer 10

amount of matter in an object

Question 11

volume

Answer 11

amount of space and object takes up

Question 12

ordinary numbers to scientific notation

Answer 12

left=positive number is number of spaces moved

Question 13

scientific notation to ordinary numbers

Answer 13

left= negative than number of spaces is the same as the exponent

Question 14

multiplying scientific notation

Answer 14

number portion and add exponents

Question 15

dividing scientific notation

Answer 15

divide number portion and subtract exponents

Question 16

methane bubbles

Answer 16

ignited and ride the Methane us less dense than air

Question 17

third rock

Answer 17

different densities, different rocks.

white is most, red is middle, black is least

Question 18

fish tank

Answer 18

co2 more dense than the space below

Question 19

silly cylinders

Answer 19

same volume

copper=higher mass more compact

Question 20

sinking ice

Answer 20

floats in water, sinks in alcohol

Question 21

Cartesian diver

Answer 21

volume decreased density goes up

increases in density volume doesn’t change

Question 22

floating pop

Answer 22

fist floats became less sugar

Question 23

bowl of beans

Answer 23

metal sinks, balls come to surface

Question 24

egg towels

Answer 24

water is less dense than the egg, salt is more, mixture holds it in the middle

Question 25

what do you do when measuring

Answer 25

one decimal place more then the scale

Question 26

percent error

Answer 26

experimental value- true value/ true value( 100)

Question 27

will fat sink or float

Answer 27

float, muscle sinks