Properties of Matter
List the evidence that a chemical change has taken place
color change, odor change, gas production (bubbles), formation of a precipitate, or significant shifts in temperature (heat released/absorbed) or light/sound production
State each of Newton's 3 laws.
1st law: An object in motion stays in motion unless acted upon by an unbalanced force
2nd law: force = mass x acceleration
3rd law: every action has an equal and opposite reaction
What is the energy transformation for a plant getting energy from the sun to convert into glucose through photosynthesis
radiant to chemical
What determines the life cycle of a star
mass
Where do stars form?
Planetary nebula
Classify Lithium as a metal, nonmetal, or metalloid.
metal
Provide 2 speed and velocity examples
Speed: 7 m/s, 20 mph
velocity: 7m/s South, 20 mph northeast
Which type of wave has crests & troughs?
When looking at an HR diagram, what variable is located on the x axis?
Temperature
Where are we located within the solar system?
Milky way galaxy on the orion arm
Define Precipitate
A solid that forms after mixing two liquids. Indicates that a chemical change has taken place
The tendency of an object to resist a change in its motion
Waves with high energy, have ____________________________ frequency and _____________________________ wavelength.
high frequency, short wavelength
Where would we find the hot, bright stars on an HR diagram: top right, top left, bottom right, bottom left?
top right
What 2 things are responsible for causing the seasons?
Earth's tilt and revolution around the sun
The formula for this compound is (NaC2)8H3O4. How many atoms of each element are represented in one molecule of sodium acetate?
Na: 8, C:16, H:3, O:4
Describe the shape of the line on a position time graph that shows an object moving back to the origin
Negative slope, line moving toward x axis
Microwaves
This type of boundary forms mid oceanic ridges and rift valleys.
Divergent
How does energy transfer in transverse waves?
Perpendicular to the direction of the wave motion. (up and down)
How many molecules on the following compound: 4H2O
four
Describe the shape of the line on a position time graph showing that an object is speeding up
curved, positive
How does convection transfer energy within gases and liquids? Be sure to mention density.
the particles within a fluid heat, expand and become less dense, causing them to rise. The cooler, less dense particles at the top, sink, heat up, and repeat the cycle.
Which type of tide results in less extreme high tides and higher low tides.
Neap tides
What are the action reaction forces for a swimmer moving forward in a pool?
Action: swimmer pushes on water
Reaction: water pushes on swimmer, moving them forward