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Density Basics
Test Description: Basic sinking/floating and calculations.
Instructions: Answer all questions to get your test result.
1) What is the proper formula for calculating density?
A
Density = volume/mass
B
Density = mass/volume
C
Density = mass X volume
2) What is the density of pure water?
A
1.5 kg/L
B
10 kg/L
C
1.0 kg/L
D
0.5 kg/L
3) Which of the following substances will float on water?
A
A block with a mass of 1 kg and a volume of 0.5 L
B
A block with a mass of 5 kg and a volume of 6 L
C
A block with a mass of 5 kg and a volume of 4 L
D
A block with a mass of 1L and a volume of 2 kg
4) What is the density of a rock with a mass of 40 kg and a volume of 2 L
A
20 L/kg
B
20 kg/L
C
80 kg/L
D
0.8 kg/L
5) Four blocks have a volume of 10 L. Which of them will have the highest density?
A
Block A with a mass of 50 kg
B
Block C with a mass of 10 kg
C
Block D with a mass of 1 kg
D
Block B with a mass of 5 kg
6) When we add the following four liquids to a beaker, what order will the layers be in? Liquid A density = 1.0 kg/L; Liquid B density = 0.5 kg/L; Liquid C density = 1.5 kg/L; Liquid D density = 0.3 kg/L
A
ABCD
B
CABD
C
DACB
D
BADC
7) What will be the mass of rock with a density of 10 kg/L and a volume of 2 L?
A
20 kg
B
12 kg
C
5 kg
D
0.2 kg
8) Which of the following is the least dense?
A
1 ton of iron
B
5 pounds of iron
C
none, they all have the same density
D
1/2 pound of iron
9) Which of the following is true?
A
An object with a mass smaller than its' volume will sink in water
B
An object with a mass larger than its' volume will sink in water
C
An object with a mass larger than its' volume will float in water
D
An object with a mass smaller than its' volume will float in water
10) Which of the following is true?
A
density can be calculated
B
all of the above are true
C
rocks sink because they are heavy for their size
D
density is a ratio of mass to volume
*select an answer for all questions
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