Density

Question 1

a quantitative physical characteristic of a substance that can be measured or calculated

Answer 1

density

Question 2

substances will maintain the same density no matter the shape or size of the sample (true/false)

Answer 2

True

Question 3

Ration of mass to volume

Answer 3

density

Question 4

What is the formula for density

Answer 4

Density = mass/volume

Question 5

What are the units for mass?

Answer 5

grams

Question 6

What are the units for volume of a liquid, or displacement

Answer 6

milliliters

Question 7

what are the units for density?

Answer 7

grams/milliliters or grams/cubic centimeters

Question 8

what are the units for volume of a regularly shaped object

Answer 8

cubic centimeters

Question 9

the amount of matter in an object

Answer 9

mass

Question 10

what science tool would we use to measure mass?

Answer 10

digital scale or triple beam balance

Question 11

the amount of space an object or substance takes up

Answer 11

volume

Question 12

what tool do we use to measure the volume of a liquid

Answer 12

graduated cylinder

Question 13

when measuring the volume of a liquid, the curved surface of the liquid is called

Answer 13

meniscus

Question 14

We read the top of the meniscus (true/false)

Answer 14

false

Question 15

when an irregularly shaped object is submerged in water and we measure the amount of water it pushes out this is called

Answer 15

displacement

Question 16

what is the formula for finding the volume of an irregularly shaped object using displacement?

Answer 16

Final volume - initial volume = objects volume

Question 17

what measurements do you need to find the volume of a regularly shaped object

Answer 17

length, width and height

Question 18

what science tool do we need to find the volume of a regularly shaped object?

Answer 18

a ruler and a calculator

Question 19

what is the formula for finding the volume of a regularly shaped object?

Answer 19

volume - length x width x height

Question 20

When molecules are not packed very tightly together the substance is (more dense, less dense)

Answer 20

less dense

Question 21

A substance’s density can be altered by temperature (true/false)

Answer 21

true

Question 22

when you heat a substance it becomes

Answer 22

less dense

Question 23

when you cool a substance it becomes

Answer 23

more dense

Question 24

if you have the same mass and a smaller volume the objects density (increases or decreases)

Answer 24

increases

Question 25

substances with lower densities have less mass in the same volume (true/false)

Answer 25

true

Question 26

substances with higher densities have less mass in the same volume (true/false

Answer 26

false

Question 27

what causes the colored liquid in a lava lamp to rise to the top?

Answer 27

heat causes it to become less dense

Question 28

place these items in order from most dense to least dense: water density = 1 g/mL honey density = 1.42 g/mL corn syrup density = 1.33 g/mL baby oil density = 0.83 g/mL

Answer 28

honey, corn syrup, water, baby oil

Question 29

an objects ability to float in water or air

Answer 29

bouyancy

Question 30

if a substance has the same or similar density to a fluid it will

Answer 30

settle in the middle without sinking or floating

Question 31

if a substance has a lower density than a fluid it will

Answer 31

float

Question 32

if a substance has a higher density than a fluid it will

Answer 32

sink

Question 33

What is the density of an object with a mass of 24 grams and a volume of 3 mL?

Answer 33

8 g/mL

Question 34

What is the density of a cube measuring 2 cm on all sides, with a mass of 32 grams and

Answer 34

4 g/cubic cm

Question 35

What is the density of a rock with a mass of 33 grams, with an initial volume of 20 mL and final volume of 31 mL?

Answer 35

3 g/mL