Density
Mass
Volume
Sink or Float?
Units of Measure
100
Density is...
Comparing the mass per unit of volume
100
Define mass.
The amount of matter in an object.
100
Define Volume.
The amount of space an object takes up.
100
If an object has a density of 0.8 g/cm3 will it float or sink? Why?
It will float because it is less dense than water.
100
1000mL = ?L
1L
200
What is the formula for finding an object's density?
D= m/v
200
Mass is the measure of how much matter is an an object. What is matter?
The scientific word for "stuff"
200
What formula would you use to measure a square or a rectangle?
l x w x h
200
If an object has a density of 1.2 g/cm3 will it float or sink if placed in water? Why?
It will sink because it is more dense than water.
200
You are taking the measurements of a rectangle. What metric unit would your measurements be calculated in?
Centimeters
300
Which is more dense: a gold ring or a pillow?
Gold Ring
300
If you are measuring an objects mass what type of data are you taking? (Quantitave or Qualitative) Why?
Quantative--it is data described using numbers.
300
How would you find the volume of an orange using volume displacement?
Measure ___mL of water into a graduated cylinder. Add the orange. Measure again. Subtract the measurement with the organge from the measurement without the orange.
300
Corn Syrup has a mass of 69g and a volume of 50cm3. Will it sink or float? Why?
It will sink because it is more dense than water.
300
The unit for determining mass
grams
400
You have an object with a mass of 3.6g and has a length of 1.2 cm and width of 2.0 cm and a height of 4.6cm. What is the object's density?
0.33 g/cm3
400
Which object do you think has a higher mass: a gold ring or a pillow?
Gold Ring
400
You measure out 30mL of water into a graduated cylinder and place an object into the cylinder. The meniscus now reads 45mL. What is the volume of that object?
15mL
400
Plastic has a volume of 50cm3 and a mass of 46.5g. Will it float? Why or why not?
Float, because its density is 0.465g/cm3 which is less than the density of water.
400
The unit for determining volume of an object when you use water/volume displacement
mL
500
You have an object that you've placed in a graduated cylinder. The amount of water before you placed the object into the cylinder was 30mL. When you placed the object in the level rose to 52mL. The object has a mass of 20g. What is its density?
1 g/cm3
500
Which object has more mass: a yo-yo or a gold ring?
Yo-Yo
500
You have a cube with a width of 6cm. Find its volume.
216cm3
500
A cube has a mass of 10g and length of 5cm. Will it float in water? Why or why not?
It will float because it is less dense than water.
500
?mL is equal to ?g or cm3
1mL is equal to 1g or 1cm3
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