Mass, Weight and Density
67 questions· page 1 of 7
The electronic balance uses the weight of the measuring cylinder to determine its mass.
Weight and mass have different units.
State two other ways in which weight differs from mass.
- ______
- ______
Describe how to determine the density of the liquid using the apparatus shown in Fig. 1.1.
A third object, which is also made of copper, has the same volume as the iron object.
Calculate the mass of this copper object.
mass = ______
An electronic balance is calibrated to display the weight of an object that is placed on its top plate.
Fig. 5.1 shows the balance with an empty measuring cylinder on the top plate.
A student pours a small quantity of oil into the measuring cylinder and records the volume and the new reading on the balance.
Fig. 5.2 shows how the reading on the balance varies with the volume of oil in the measuring cylinder.
The gravitational field strength is equal to .
Using Fig. 5.2, determine the density of the oil.
density = ______
The mass of the stone is and its volume is .
Calculate the density of the stone.
density of stone = ______
The stone is taken to another place, where the gravitational field strength is less than . State how this affects the mass and the weight of the stone.
mass ______
weight ______
The student is told that the density of the plastic is .
Calculate the volume of the plastic sheet.
volume = ______
The student measures the length and width of the sheet. The readings obtained are:
length of sheet =
width of sheet =
Calculate the thickness of the sheet.
thickness = ______