TEST: VOLUME, MASS, AND DENSITY
A rock displaces 1,500 mL of water. The volume of the rock is: 0.15 m³ 0.0015 m³ 0.015 m³ 1.5 m³
0.0015 m³
A piece of metal has a mass of 200 g and a volume of 2 cm3. What is its specific gravity? 100 400 0.01 2
100
A block of wood has a length of 4 cm, a width of 5 cm, and a height of 10 cm. What is the volume of the wood? 19 cm³ 50 cm³ 20 cm³ 200 cm³
200 cm³
An object weighs 55.54 newtons. What is its mass if a gravitometer indicates that g = 9.83 m/s2? 5.65 kg 545.95 kg 0.18 kg
5.65 kg
An object has a mass of 12 kg. On Planet A, the object weighs 69 N. The force of gravity on Planet A is: 0.17 m/s 2 5.75 m/s 2 744 m/s 2
5.75 m/s 2
In a lab, the mass of object A is 65 kg. Object A weighs: 6.63 N 0.15 N cannot be determined 637 N
637 N
A gas has no volume. True False
False
The mass of an object is independent of its location. True False
True
The specific gravity of water is 1.0. True False
True
If the weather forecaster tells you that the pressure is falling, what is the air density doing? increasing decreasing uncertain remaining constant
decreasing
The standard metric units of density are: g/L g/cm 3 kg/cm 3 kg/N
g/cm 3
Object A has a length of 4 cm, a width of 3 cm, and a height of 1 cm. Object B is dropped into a graduated cylinder. It displaces 15 mL of water. The volume of object A is: less than the volume of object B greater than the volume of object B equal to the volume of object B
less than the volume of object B
An equal-arm balance is used to measure: force volume mass density
mass
Density equals: mass/volume weight/volume weight/area mass/weight
mass/volume
Select all that apply. The displacement method for measuring volume: may yield incorrect results if the matter is soluble in liquid is not always accurate is the most precise way to measure the volume of a gas can only be used to measure the volume of solids
may yield incorrect results if the matter is soluble in liquid is not always accurate
The two methods used for determining mass are: measuring directly on a balance measuring directly by displacement of water calculated by measurements of w and g measuring directly on a scale
measuring directly on a balance calculated by measurements of w and g
On the surface of the earth, weight is calculated by: dividing volume by density multiplying density and gravity multiplying mass and gravity dividing mass by volume
multiplying mass and gravity
The gravitational force between two objects: will increase if the objects are moved closer together is always the same will decrease if either object gains mass
will increase if the objects are moved closer together
