Find the volume of a box with a length of 5cm, width of 10cm, and a height of 2cm
What is What is 100 cm3
100
How many causes of density exist?
What are 3
100
How would you measure the volume of an irregular solid?
What is water displacement.
100
Define volume
What is the amount of space an object takes up
200
Define Density
What is the amount of mass per unit volume.
200
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.
What is What is 133 cm3 or 133 mL
200
Name the three causes of Density.
What are Atomic bonds, Bonds, Mixed Density
200
Put these in order from least to greatest density.
water, rubbing alcohol, salt water
What is RA, Water, Salt Water
200
If a person has a mass of 65kg and a density of 5kg on the earth, what is the persons mass on the moon?
What is 65kg The mass does not change
300
A measure of the force of gravity pulling down on an object is known as the object's
What is Weight
300
Find the density of an object with a mass of 42g and a volume of 93cm3
What is 0.45g/cm3
300
What is the cause of density for small piece of aluminum foil?
What is Mixed Density.
300
Why does the element oxygen (atomic #8) have a lower density than the element gold (atomic #79)
What it has a smaller nucleus (amu)
300
Explain why the top floor of a home us usually warmer than the basement.
What is warm less dense air rises and cool more dense air sinks.
400
This is the upward force exerted on a gas or liquid?
What is Buoyancy.
400
How do you calculate AMU?
What is you add the number of protons and neutrons together.
400
What is the cause of density for the following substances: NaCl, C6H12O6, NaCHO
What is Atomic Bonds - they are all compounds
400
Why are solids typically more dense than liquids and liquids are typically more dense than gasses?
What is they have stronger atomic bonds
400
How is a spring scale different from a triple beam balance if they both measure mass?
What is a spring scale measures weight - the pull of gravity
500
Which piece of lab equipment would you use if you are measuring the volume of an irregularly shaped object and a graduated cylinder is to small?
What is a spill can.
500
A) You are working with a graduated cylinder that has a volume of water containing 20ml. You place an unknown substance into the graduated cylinder and you know have a a volume of 37ml. The unknown substance has a mass of 9g. What is the density of the unknown substance?
B) Will this Float on lamp oil that has a density of .81g/ml?
What is
A) 0.59 g/ml
B) yes it will float
500
Give 4 examples for density due to atomic and molecular bonds. 2 fluids and 2 solids
What is answers will vary - must be compounds
Examples:
liquid - water, carbon dioxide
solids - salt, sugar
500
What is the densest layer of the earth including our atmosphere? - be specific
What is the inner core.
500
List the elements in order from Least to Most dense:
sodium, helium, aluminum, hydrogen, silver, osmium
What is hydrogen, helium, sodium, aluminum, silver, osmium