What is Matter? Chapter 2 Section 1

Matter What do all of these objects have in common? These objects all have volume and mass. Matter - is anything that has volume and mass

Matter has Volume Volume – the amount of space that something occupies or the amount of space that something contains An object’s volume is the amount of space the object take up Objects with volume can’t share the same space at the same time

Measuring Volume of Liquids Meniscus – the curve at a liquid’s surface by which you measure the volume of a liquid To measure volume correctly, read the scale at the lowest part of the meniscus at eye level. Show them.

Measuring Volume of Solids Expressed in cubic units (m3 or cm3) Cubic means “having three dimensions”

Comparing Solids and Liquids You are able to compare liquids and solids because 1mL = 1cm3

Measuring the Volume of Gas Gas expands to fill its container, of if you know the volume of the container the gas is in, then you know the volume of the gas.

Matter has Mass Mass – is the amount of matter that something is made of. Gravity – is a force of attraction between objects that is due to their masses. All matter has mass, therefore all matter experiences gravity

Let check out what Tim and Moby have to say about Gravity!!

Gravity Gravitational force is large between objects with large masses that are close together.

Gravity Gravitational force is smaller between objects with smaller masses that are close together than between objects with large masses that are close together.

Gravity An increase in distance reduces gravitational force

Weight Weight – a measure of the gravitational force exerted on an object Newton (N) – the SI unit of force

The Difference Mass is: Weight is: A measure of the amount of mater in an object Always constant for an object no matter where the object is in the universe Measured with a balance Expressed in Kilograms (kg), grams (g), and milligrams (mg). Weight is: A measure of the gravitational force on an object Varied depending on where the object is in relation to the Earth Measured with a spring scale Expressed in newtons (N)

Inertia Inertia – the tendency of all objects to resist any change in motion An object at rest will remain at rest until acted on An object moving will remain moving at the same speed and direction unless something acts on it to change its speed or direction. Inertia increases as mass increase