Properties of Matter
Give 2 examples of physical changes:
ripping paper, dissolving sugar in coffee, ice melting, water freezing, water evaporating
If an object is moving at a constant speed, what type of force is acting on it?
balanced force
What is the energy transformation for a tiger pouncing on a hyena to eat? (from jump to digestion)
chemical, mechanical, chemical
What are the 2 factors affecting gravity?
mass and distance
What is it called when a massive star explodes?
supernova
Classify Helium as a metal, metalloids, nonmetals
nonmetal
Provide 2 speed and velocity examples
Speed: 7 m/s, 20 mph
velocity: 7m/s South, 20 mph northeast
Which type of wave has rarefactions and compression?
longitudinal
When looking at an HR diagram, what variable is located on the y axis?
Luminosity
What is our sister galaxy called?
Andromeda galaxy
Define Precipitate
A solid that forms after mixing two liquids. Indicates that a chemical change has taken place
What are the 6 types of forces?
gravity, normal, applied, friction, magnetic, electrical
Waves with low energy, have ____________________________ frequency and _____________________________ wavelength.
lower frequency, longer wavelength
Where would we find the cool, bright stars on an HR diagram: top right, top left, bottom right, bottom left?
top left
What are the names of the 2 events where there are equal amounts of days and night?
vernal and autumnal equinox
The formula for this compound is 5Al3(SO4)2. How many atoms of each element are represented in one molecule of Aluminum sulfate?
Al: 15, S:10, O: 40
Describe the shape of the line on a position time graph that shows an object decelerating quickly
Negative slope, line moving toward x axis
What color of the visible light spectrum has the highest energy?
Violet
What layer determines the magnetic field?
outer core
How does energy transfer in longitudinal waves?
parallel to the medium
What determines the amount of a specific atom?
subscript
Describe the shape of the line on a position time at a slow speed away from the origin
constant line, U shaped
What is the EM spectrum order from strongest to weakest?
gamma, x-ray, ultraviolet, visible light, infrared, microwaves, radiowaves
What are the 2 moons that cause neap tides?
1st quarter and 3rd (last) quarter
What are the action reaction forces for rocket blasting off the ground?
Action: rocket pushes against ground
Reaction: ground pushes against rocket