ShmoopTube

Where Monty Python meets your 10th grade teacher.

Search Thousands of Shmoop Videos


Chemistry Videos 44 videos

Chemistry: 1.1 Lab Safety
570 Views

Don't even think about stepping foot into a lab until you drink a nice big cup of safe-ty. Safety lesson number one: do not listen to this descript...

Chemistry: 4.7 Atomic Emission Spectra and Flame Tests
395 Views

Today we're playing with fire. Wait, we're not supposed to say playing...having fun with fire? Today's lesson is on the colors that can be emitted...

Chemistry: 2.1 Significant Figures and Scientific Notation
408 Views

These figures may not be significant to you, but they matter to us, okay? Oh, and to Science. They matter a ton to Science.

See All

Chemistry: 3.8 Density, Cont. 46 Views


Share It!


Description:

Ever wondered how dense you are? No, we're not leading you into some cruel joke. We mean literally. Today's video will show you how density can be calculated. We're talking mass and volume here, not intelligence, we promise.

Language:
English Language

Transcript

00:04

Wanda the wondrous is about to perform her greatest escape [Wanda preparing to perform magic trick]

00:07

trick ever not only is she going to get out of her straight jacket while totally

00:11

submerged in the tank of water but while she's in there she's going to figure out

00:15

her own body density it should be enough to thrill fans of magic and science

00:20

alike well after being dropped into the tank Wanda has to work fast first she [Wanda dropped into a tank of water]

00:25

needs to dislocate her right shoulder so she can maneuver her arm into a position [Wanda dislocates her right shoulder]

00:30

where she'll be able to reach the first few buckles, that's the easy

00:34

part and now for the density calculation she knows that the tank was filled to

00:38

the five thousand liter mark before she entered the picture now that Wanda is [Wanda suspended in tank of water]

00:42

totally submerged she looks up and notices that the water's risen to the

00:47

5050 liter mark well using some pretty advanced calculus, Wanda realizes that [Person using calculator]

00:52

because of displacement her body must have a volume of 50 litres because like

00:58

5050 - 5000 in California anyway equals 50 litres and already she's halfway

01:03

there now she has to think back to earlier that morning when she stepped on a [Wanda steps on weighing scale]

01:08

scale to determine her mass well she weighed 60 kilograms and next because

01:14

the formula for density is mass divided by volume we can take Wandas mass 60

01:19

kilogram and divide it by her volume 50 liters to get 1.2 kilograms per liter

01:26

and that's the measure of Wanda's body density boom done she comes up with this

01:31

answer just before freeing himself from her bonds and kicking her way to the [Wanda jumps out of tank of water]

01:34

surface the audience is impressed by her aquatic escape ability but not nearly as

01:38

impressed as they are by her willingness to voluntarily do math... now that's [Wanda points to her body density on chalkboard]

01:43

magical

Related Videos

Marine Flashcard
32734 Views

In this video, we dive beneath the sea to review the kinds of interesting animals that live in the deep blue.

Phenotype
948 Views

Don't like how someone looks? Blame their phenotypes.

Phospholipids
7339 Views

Anything that has a cell (bacteria, listen up!) has phospholipids that keep the cell contained and give it form and shape. Phospholipids protect us...

What Would Mary Shelley Think of GMOs?
1343 Views

GMOs. Now that’s a scary word. Or is it? Guess it’s time to ask ourselves: WWMST? ...For those of us who don’t constantly ask ourselves “wh...

GED Science 1.2 Life Science
399 Views

GED Science 1.2 Life Science