Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
41 Cards in this Set
- Front
- Back
|
Matter
|
anything that has volume and mass
|
|
|
volume
|
the amount of mass an object takes up
|
|
|
Liquid volume is measured using what kind of container?
|
a graduated cylinder
|
|
|
How do you read a graduated cylinder?
|
By looking at the bottom of the meniscus
|
|
|
Meniscus
|
the curve at a liquid's surface
|
|
|
What unit is used to measure the volume of a liquid?
|
mL
|
|
|
What unit is used to measure the volume of a solid?
|
centimeters cubed
|
|
|
What is the formula for measuring volume of a solid
|
length x width x height
|
|
|
Once you add an object to water, how do you measure using hte water displacement method?
|
Record amount of water in container
add object record the new level of water subtract reading 1 from reading 2 |
|
|
how do you convert mL to cubic centimers
|
1 mL = 1 cm(3)
|
|
|
Mass
|
the amount of "stuff " in an obje t
|
|
|
How can an object's mass be changed?
|
By adding or subtracting the amount of matter in the object
|
|
|
What unit is mass expressed in?
|
kilograms (mostly we wil deal with grams and milligrams)
|
|
|
How is mass measured?
|
triple beam balance
|
|
|
Mass is a measure of _________
|
inertia
|
|
|
Inertia
|
Tendency of an Object to Resist Change in Motion (objects at rest stay at rest, object in motion stays in motion until acted on by outside force like gravity)
|
|
|
Weight
|
Measure of gravitational force on an object
|
|
|
Gravity
|
A force of attraction between 2 objects
|
|
|
Weight is measured using what device?
|
A spring scale
|
|
|
Weight is expressed in what unit?
|
Newtons
|
|
|
Physical properties
|
can be measured or observed without changing the identity of the matter
|
|
|
conductivity
|
ability to transfer something from one to the other
|
|
|
thermal conductivity
|
transfer of heat
|
|
|
electrical conductivity
|
transfer of electrical energy
|
|
|
State
|
the form in which the matter exists
|
|
|
What are the states of matter?
|
solid, liquid, gas or plasma
|
|
|
Malleability
|
the ability to be pounded into thin sheets
|
|
|
Ductility
|
ability to be pulled into a wire
|
|
|
solubility
|
ability to dissolve into another substance
|
|
|
density
|
amount of matter in a given volume
D = M / V |
|
|
Water has a density of _________
|
1 g /mL
|
|
|
What unit is density expressed in?
|
g / cm 3
g / mL |
|
|
What does an object do if it has a density greater than 1g/mL
|
sinks in water
|
|
|
What does an object do if it has a density less than 1g/mL
|
floats in water
|
|
|
Physical changes
|
a change that affects on or ore physical properties. the identity of the substance does not change
|
|
|
Name four types of physical changes
|
melting
freezing cutting crushing |
|
|
Chemical properties
|
a property that describes a substance based on its ability to change into a new substance WITH DIFFERENT PROPERITES. THE IDENTITY of the matter changes
|
|
|
Name three types of chemical properties
|
flammability
reactivity with acid reactivity with oxygen (rusting) |
|
|
characteristic properties
|
a property that is always the same whether the sample is small or large
|
|
|
signs of chemical change
|
color change
fizzing or foaming heat odor light or sound |
|
|
what is a difference between a physical change and a chemical change
|
phsyical changes can often be reversed
chemical changes cannot be reversed |
