This lesson contains 13 slides, with interactive quizzes and text slides.
Lesson duration is: 50 min
Items in this lesson
Density Calculations
Slide 1 - Slide
Which answer is false? Density is:
A
property of a substance
B
volume/mass
C
mass/volume
D
mass in grams of substance per cubic centimetre
Slide 2 - Quiz
Remember?
density = mass/ volume
mass (m) in grams (g)
volume (V) in cubic centimetre (cm3)
density (p) in grams per cubic centimetre (g/cm3)
Slide 3 - Slide
Slide 4 - Slide
mass
1 kg = 1000 g
1 g = 1000 mg
40 mg = 0.04 g
kg --> g (x 1000)
mg --> g ( divide by 1000)
Volume
1 dm3 = 1000 cm3
1 L = 1000 mL
40 mL = 0.04 L
L --> mL (x 1000)
mL --> L (divide by 1000)
1 mL = 1 cm3
1 L = 1 dm3
Slide 5 - Slide
Question
Calculate the density
Use G.A.F.C.A
G = given
A= Asked
F= Formula
C = Calculation
A = Answer
Slide 6 - Slide
Answer
G: m = 200 g
l = 6 cm; w = 4 cm; h = 5 cm
A: density
F: density = mass/volume
C: V = l*w*h= 6 x 4 x 5 = 120cm3
density = 200 g / 120 cm3
A: density = 1.7 g/cm3
Slide 7 - Slide
Calculate the density
Slide 8 - Open question
Answer
G: mass = 324 g
l = 4 cm; w = 3 cm; h = 10 cm
A: density
F: density = mass/volume
C: V needs to be calculated first: V = l*w*h
V = 4 x 3 x 10 = 120 cm3
density = 324 g/ 120 cm3 = 2.7 g/cm3
A: The density of the block is 2.7 g/cm3
Slide 9 - Slide
The label of a bottle of syrup says: 0.75L | 850 g What is the density of the syrup?
Slide 10 - Open question
Answer
G. m = 850 g; V = 0.75 L
A. density
F. density = mass / volume
C. V = 0.75 L ; you have to convert this to cm3
V = 0.75 L = 750 mL = 750 cm3
density= 850 g/ 750 cm3
A. density = 1.13 g/cm3
Slide 11 - Slide
Question
Lisa has a rock and wants to determine the density. She uses a measuring cilinder. She starts with 50 mL water in the cilinder. After adding the rock, the water has risen to 58 mL.