The Tools of Physical Science. Objectives Today we will learn –About graduated cylinders –About triple beam balances –About the three temperature scales.

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Presentation transcript:

The Tools of Physical Science

Objectives Today we will learn –About graduated cylinders –About triple beam balances –About the three temperature scales –The definition of mass, volume and temperature.

Daily Deep Thought Why are there flotation devices under airplane seats instead of parachutes?

Tools for Measuring Volume

The Graduated Cylinder Volume: A measure of the amount of 3 dimensional space an object occupies. Base Metric Unit = Liters An object dropped into a cylinder will displace an amount of water equal to its volume!

Using a Graduated Cylinder Meniscus Always measure to the meniscus 40 ml

So, 3 cm x 3 cm x 3 cm = 27 cm 3

Demo: Which has more water?? If 1000 ml = 1000 cm 3 Then 1 ml = 1 cm 3

Beakers

Flasks Erlenmeyer Round Bottom

Tools for finding mass

The Triple Beam Balance Mass: The amount of matter in an object Base Unit = Grams

Tools for Measuring Length

The Meter Stick

The Thermometer Temperature: A measure of the energy in an object. How hot or cold something is! Units = Degrees Celsius

Other Tools Spring Scale Measures Force of Gravity Units = Newtons Stopwatch Measures time Units = Seconds

Knowledge Check Which tool is used to find Volume? A. Triple Beam Balance B. Graduated Cylinder C. Thermometer D. Meter Stick

Define Mass: The amount of matter in an object

Define Volume: The amount of 3 dimensional space an object occupies

What unit of measure do we use to express volume? Liter

What unit of measure do we use to express mass? Gram

The cubic centimeter (cm 3 ) is the same as what measure of volume? The Milliliter (ml)

According to the Celcius scale, at what temperature does water boil? 100 o c

What does a spring scale measure? Force exerted by earth’s gravity

Define Temperature The amount of energy in an object.

What is normal body temperature in degrees Celsius and Fahrenheit? 37 o c or 98.6 o F