Volume & Mass:
. Volume is the amount of space that an object takes.
. Mass is the amount of matter in a substance
. It is measured using a balance / weighing scale.
. Mass and weight are not the same. Weight is the mass multiplied by the
gravitational force.
Density:
. Density is the measure of the amount of matter that is present in a certain volume of that substance.
. It is basically how close the atoms are.
. The closer the atoms, the more dense the object is.
. The density will normally be different for every substance.
This is Osmium, the densest naturally occurring element in the world. Its density is almost 23 times that of water!
. Volume is the amount of space that an object takes.
. Mass is the amount of matter in a substance
. It is measured using a balance / weighing scale.
. Mass and weight are not the same. Weight is the mass multiplied by the
gravitational force.
Density:
. Density is the measure of the amount of matter that is present in a certain volume of that substance.
. It is basically how close the atoms are.
. The closer the atoms, the more dense the object is.
. The density will normally be different for every substance.
This is Osmium, the densest naturally occurring element in the world. Its density is almost 23 times that of water!
Formula Of Density:
The SI unit of density is kg/m3
The SI unit of density is kg/m3
Density Triangle:
Measuring Density- Regular Solid:
1) 1st we need to calculate the volume of the solid.
a. To do that we first need to measure the length width and height
b. Then we need to multiply them together to get the volume
1) 1st we need to calculate the volume of the solid.
a. To do that we first need to measure the length width and height
b. Then we need to multiply them together to get the volume
2) Then we measure the mass by placing it on a
weighing scale.
weighing scale.
3) Then one we have both the mass and the volume, we divide the mass by the volume, and the answer we get will be the density.
Measuring Density- Irregular Solid:
1) First we need to find the mass by placing it on a top pan balance.
Measuring Density- Irregular Solid:
1) First we need to find the mass by placing it on a top pan balance.
2) Then we need to calculate the volume by
a. First take a measuring cylinder
b. Then fill it halfway with water
c. Then measure the volume of water
d. Then tie the object to a string and completely submerge the object.
e. Measure the new reading and then subtract the two. This is the
volume.
a. First take a measuring cylinder
b. Then fill it halfway with water
c. Then measure the volume of water
d. Then tie the object to a string and completely submerge the object.
e. Measure the new reading and then subtract the two. This is the
volume.
3)Then divide the mass by the volume to get the density.
Measuring Density- Liquid:
1) A measuring cylinder is placed on a weighing scale. Record mass as A.
2) The liquid is poured into the measuring cylinder and its volume is
measured. Record volume as V.
3) The mass of the measuring cylinder and the liquid inside it is found.
Record mass as B.
4) The mass of the liquid is found by subtracting A from B. Let’s call this M.
5) Then divide the mass (M) by the volume (V) to get the density.
Course Instructor- Varun Jaipal, Notable Content Creator Of Physics Department
Measuring Density- Liquid:
1) A measuring cylinder is placed on a weighing scale. Record mass as A.
2) The liquid is poured into the measuring cylinder and its volume is
measured. Record volume as V.
3) The mass of the measuring cylinder and the liquid inside it is found.
Record mass as B.
4) The mass of the liquid is found by subtracting A from B. Let’s call this M.
5) Then divide the mass (M) by the volume (V) to get the density.
Course Instructor- Varun Jaipal, Notable Content Creator Of Physics Department
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