Definitions
The amount of space an object takes up ________.
Is volume.
To measure a rectagular solid, I would .....
Multiply length x width x height
Find the volume of a box with a length of 5cm, width of 10cm, and a height of 2cm.
100cm3
All stars start life as a:
nebula
Density is always measured in units of ...
g/cm3 or g/mL
The amount of matter in an object is know as.....
Is mass.
Density is useful because we can predict if an object will ______ or _______ in water.
Sink or float.
Calculate the volume of a hairbrush if the water in the graduated cylinder was 123 mL before the hairbrush was put in and the volume of the liquid after the hairbrush was submerged rose to 256 mL.
133 cm3 or 133 mL
Which has a longer life? A low mass star or high mass star?
Low mass star. High mass stars burn through their fuel faster
Name this phase of a star's life: Gravity is so strong that not even light can escape
Black Hole
To measure volume of a liquid we use a .....
Graduated Cylinder
If two objects have the same volume, then the object with greater mass will have...
a greater density
(think of our cubes. They all have about the same volume, but some are much more dense than others)
What can a high mass star become at the end of its life?
A neutron star or black hole
To measure the volume of liquids I would read the numbers on the graduated cylinder using the ...
Meniscus/Bottom of the water line
The ratio of mass and volume is ....
Is density.
True of False: Matter has the same density regardless of how much or how little of the matter is present. For example, aluminum has the same density whether it is in car rims or nails.
True.
Find the volume of a rock that has a density of 2.9 g/cm3 and a mass of 290g
100cm3
Define "white dwarf"
The end of a low/medium star's life. The remnants of a planetary nebula
A rock has a mass of 20g. When placed in a graduated cylinder, the water level rises from 10mL to 35mL. Find the density of the rock.
0.8g/mL
Volume = 35mL - 10mL = 25mL
20g/25mL = 0.8g/mL