Density
What is the formula for density
Mass/volume
What is matter
Anything that has mass and volume
What are the two ways of measuring volume
Length x width x height OR displacement
What is the pneumonic for remembering the metric units?
King Henry Died By drinking chocolate milk.
What tool is used for measuring mass
Triple beam balance
What is the density if an object that has a mass of 50g and a volume of 25 mL
2g/mL
What is an atom made of
Protons, neutrons, electrons
What tool do you use to measure the volume of irregular objects
Graduated cylinder
What are the metric units and prefixes?
Kilo-, Hecto-, Deca-, Base units (meter, liter, gram), deci-, centi-, milli-
The riders on a triple beam balance point to the 300 mark, the 50 mark, and exactly halfway between the 4 and 5 marks. What is the mass of the object on the balance?
354.5g
The dimensions of a pizza box are 1cm, 8cm, and 10cm. The box has a mass of 40g. What is the density?
2g/cm^3
What are two things that aren’t matter
Light and sound
50mL of water is placed in a graduated cylinder. An object is placed in the cylinder and the cylinder is filled to the 75mL mark. What is the volume of the object?
25mL
How many kilometers is 50.6938 meters
.0506938 kilometers
The riders on a balance point to 176.2, but the pointer is slightly below the zero mark. Is the mass of the object more than, less than, or equal to 176.2g.
Less than
Which is denser - water or ethanol?
Water
What determines an atom’s atomic number
The amount of protons in its nucleus
An object has a density of 10 g/mL and a mass of 50g. The object is cut in half. What is the volume of each of the halves?
2.5mL
What unit is is used to measure weight in the metric system
Newtons
The riders on a balance point to 90 and 9 marks. The object on the balance is cut into 4 parts. What is the mass of each part?
24.75g
There are two liquids - A and B, and two solids, C and D. In a graduated cylinder, liquid A sinks to the bottom, and liquid B floats on top. Object C floats on top of liquid B, and object D floats on top of liquid A but sinks through liquid B. Order the objects and liquids from least dense to most dense.
C, B, D, A
What happens to an atom when protons leave its center
It becomes radioactive.
Object A has a mass of 40g and a density of 20g/mL. Object A is placed in a graduated cylinder that contains 63mL of water. Object B is placed in the same cylinder. With both objects in the water, the graduated cylinder is filled to 76mL. What is the volume of object B?
11mL
How many millimeters long is the length of a cube with a volume of 27 cubic decameters
30,000 mm
There are two objects. Object A has a mass of 42g, and object B has a mass of 96g. A is cut into quarters and B is cut into fifteenths. What is the combined mass of one quarter of A and four fifteenths of B?
29.7g