Focus On Physical Science: California Grade 8

Lesson 1: Density

Standards Check

1.
Which of these is the correct formula to find density? 8.b
A)Density = mass/Volume
B)Density = mass x Volume
C)Density = Volume/mass
D)Density = Volume + mass
2.
The density of an object depends on which of the following? 8.a
A)the amount of the object present
B)the material that makes up the object
C)the length of the object
D)the number of objects
3.
The density of a material depends on ________. 8.a
A)neither mass nor distance between particles
B)the mass of the particles only
C)the distance between the particles only
D)the mass of the particles and distance between the particles.
4.
A rectangular solid is a cube with each side measuring 10 cm. What is the volume of the cube? 8.b
A)10 cubic cm
B)100 cubic cm
C)1,000 cubic cm
D)1 cubic cm
5.
Mass and volume depend on the __________ of matter present. 8.a
A)chemical properties
B)amount
C)physical properties
D)flammability
6.
What does density measure? 8.a
A)mass per unit volume
B)volume per unit mass
C)weight per unit matter
D)matter per unit weight
7.
When you observe a physical property, the substance __________. 8.a
A)changes
B)does not change
C)burns
D)melts
Grade 8
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