Final Test Review 2015
In regards to a motion graph, what does a horizontal line indicate?
No motion
In regards to motion graphs, what does the slope of the line tell you?
Constant speed Speed an object is travelling The steeper the line the faster the speed
Which of the following properties of iron is not a physical property? Attracted to a magnet Conducts heat and electricity Has a high density Will rust if left outside for a long time Has a high melting point
Rusting
How do you calculate the density of an object?
Mass divided by volume
If an rock has a volume of 20 ml and a mass of 10g, what is the rock’s density?
.5 g/ml
List at least 2 examples of a physical change
Chopping wood, boiling water
Which of the following is not an element? Sodium Sodium chloride Oxygen Nitrogen
Sodium Chloride
What are all of the non-living factors within an environment Ex. soil, temperature, rocks, weather
Abiotic factors
What is one or more of ONE type of atom bonded together? Give an example
Element Sodium, hydrogen, O 2
List at least 2 examples of a chemical change.
Burning wood, baking a cake, rusting bicycle
What is the formula for calculating the speed of an object?
Distance divided by time D/T
A family drove 2 hours to their grandmother’s house, that is 60 miles away. What was their speed?
30mph
All of the living factors within an environment
Biotic factors
A group of organisms of the same species located within the same geographical location
Population- Homo sapiens
An organism made up of more than one, often different, cells
Multicellular organism
What characteristics classify organisms into one of the six Kingdoms?
Unicellular (one-celled) or Multicellular (many-celled)? Autotrophic (plants make their own food) or Heterotrophic (animals cannot make their own food) Sexual or Asexual Reproduction?
Name the 3 domains
Archaea Bacteria Eukarya
What are some differences between prokaryotic and eukaryotic cells?
Prokaryotic cells do not have a nucleus, or membrane-bound organelles
What are similarities among prokaryotic and eukaryotic cells?
DNA, cytoplasm, a cell membrane and ribosomes
All living organisms are made of this; the smallest unit of life; it is enclosed by a membrane and contains genetic material
cell
What kingdom of organisms has the following characteristics? Multicellular Cell membrane Autotrophic Most reproduce from seeds
Plantae
An unmanned spacecraft designed to explore the Solar System and transmit data back to Earth
Space probe
Any of the small, solid, terrestrial planets whose orbits range is within the asteroid belt, and are located closest to the sun
Inner planets
What do the planets of our solar system orbit?
sun
The force responsible for pulling objects toward each other keeping planets in orbit around the sun
gravity
A trench forms here when one plate is denser than another and is forced below as the two plates converge at their boundary
Subduction zone
What do divergent boundaries form when crustal plates pull apart from one another?
Rift valleys or mid-ocean ridges
Describe how energy is converted in solar cells?
Radiant energy is converted into electrical energy
Rock formed when heated magma or lava cools and hardens in a volcanic area are
Igneous rock
Rock formed when sediments deposited in layers are compacted and cemented together
Sedimentary rock
Explain the difference between a balanced force and an unbalanced force.
Unbalanced forces cause motion Balanced forces cause no motion
When does an object have the greatest potential energy?
At the object’s highest position
What equipment is used to observe plant and animal cells?
Microscope and slides
The transfer of heat that occurs when two objects of different temperatures touch: matter must be in direct contact
conduction
An element that is typically a hard, shiny solid, is malleable, and is a good conductor of heat and electricity
Characteristics of metals
What energy transformation takes place as the food you eat is used to play sports?
Chemical energy to Mechanical energy
What energy transfer occurs when warmer air rises and is replaced by cooler, denser, air?
convection
Name 3 chemical changes.
Burning wood rusting metal temperature change
Good Luck!