Using Measurement
What is a quantity that has both a number and a unit?
measurement
What does SI stand for?
International system of units
Daily Double: What is heavier? 100 lbs of feathers 100 lbs of gold
they are the same.
What is a gram used to measure?
mass
Put in scientific notation .0456
4.56 x 10-2
Put the following number in scientific notation. 741,560,000,000
7.4156 x 1011
Name the SI unit for length
meter
If an object has more volume that it does mass, will the object sink or float?
It will float
Daily Double: The measure of how close a series of measurements are to one another is called?
precision
Daily Double
1. The water is salty, blue and cold.
2. The temperature of the water is 5 degrees C.
1. An example of qualitative data.
2. An example of quantitative data.
How many significant digits are in 0.017000 kg?
5 D
What is the SI unit of time?
second
What is denser? Gold 19.3 g/cm3 or Ice 0.917 g/cm3
Gold
If you know the density of a substance and its volume, how do you solve for mass?
density x volume
In a graduated cylinder containing several liquid layers, the least dense liquid is found
a. settled on the bottom.
b. in the middle layer.
c. in the lightest colored layer.
d. floating at the top
d. floating at the top.
Convert the number 3200 g to scientific notation.
3.2 x 103 g
Place in order from smallest to greatest ms, ns, ks, cs
ns, ms, cs, ks
What is the formula for density?
density = mass / volume
Daily Double: What is the SI unit of volume for measuring a solid?
cubic centimeter
Formula used to find volume of a rectangular box
length x width x height
What is the difference between accuracy and precision?
accuracy is a measure of how close a measurement comes to the actual or true value. Precision is a measure of how close a series of measurements are to one another.
Explain the difference between mass and weight.
Mass is the measure of the amount of matter that an object contains. Weight is a force that measures the pull of gravity on a given mass.
Density depends on ________ and not on the size of the sample.
composition
If you know the density of a substance and its mass, how do you solve for volume?
mass /density
Daily double: What happens to a solid object with a density that is less than water when it is placed in water?
it floats