# Work Of A Scientist Question Preview (ID: 33784)

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Review This For Monday's Test.[print questions]

**The amount of matter an object contains is**

a) mass

b) weight

c) volume

d) matter

**The official SI unit of mass is the**

a) pound

b) ounce

c) kilogram

d) weight

**The official SI unit for length is**

a) meter

b) mile

c) inch

d) yard

**The measurement of how much mass is contained in a given volume**

a) mass

b) volume

c) density

d) weight

**The official SI unit of temperature is**

a) Celcius

b) Fahrenheit

c) Kelvin

d) meters

**An approximation of a number based on a reasonable assumption is a(n)**

a) estimate

b) guess

c) hypothesis

d) precision

**Refers to how close a measurement is to the true or accepted value.**

a) estimate

b) precision

c) accuracy

d) guess

**The amount of space an object takes up is**

a) weight

b) mass

c) matter

d) volume

**Refers to how close a group of measurements are to each other**

a) accuracy

b) estimate

c) hypothesis

d) precision

**Calculation used to determine how accurate, or close to the true value, an experimental value really is**

a) mean

b) significant figures

c) mode

d) percent error

**The number that appears the most in a list of numbers is the**

a) mean

b) median

c) mode

d) estimate

**The middle number in a set of data**

a) mean

b) median

c) mode

d) estimate

**A numerical average calculated by adding up all of the numbers then dividing by the total number of items in the list**

a) mean

b) median

c) mode

d) estimate

**Type of graph where all of the data points fall in a straight line**

a) linear graph

b) nonlinear graph

c) axes

d) scatter trend

**The point where the x-axis and the y-axis intersect or cross is called the**

a) coordinate

b) data point

c) origin

d) line of best fit

**true or false: An object will float if it is less dense than the surrounding water**

a) true

b) false

c)

d)

**True or false: Zero on the Celsius scale is the temperature that scientists consider to be the coldest possible temperature**

a) true

b) false

c)

d)

**To calculate the density of an object you need to know the mass and the volume**

a) true

b) false

c)

d)

**The standard SI unit for mass is the liter**

a) true

b) false

c)

d)

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