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What is an atom?
the basic building blocks of all matter
What is condensation?
Requires the release of energy
What is sublimation?
sublimation requires the absorbance of energy.
As the mass of an object...the force of friction decreases.
decreases
fluids flow from...to...pressure areas
high to low
What is the difference between kinetic energy and potential energy?
kinetic energy is energy of matter in motion while potential energy is based on an objects position.
A cargo train travels at 70 miles per hour. How long will it take to travel 210 miles?
3 hrs
As wavelength increases, frequency and energy...
decreases
What do you do to magnetize ferromagnetic materials?
Put it in the presence of a strong magnet.
To increase pressure, the force applied must...or the area applied to must...
increase, decrease
Who discovered density?
Archimedes
convert 23 m/s to k/m
82.8 km/hr
What are the 2 causes of ferromagnetism?
1. The spin and orbit of unpaired electrons around the nucleus.
2. all magnetic domains are arranged in the same direction
Why do ultraviolet rays, gamma rays and x rays cause cancer?
this is because they are highly radioactive.
What are the 3 shapes of bacteria?
sparrilla, cocci, and bacilli
What are the 5 steps of the kinetic molecular theory?
1. all matter is made up of atoms,molecules, and ions
2. They are always in constant motion
3.particles contain potential energy
4. kinetic energy increases as temperature increases
5. energy is transferred from 1 particle to another during collisions
What does newtons 1st law mean?
Newtons 1st law means that objects in motion remain in motion and objects that are at rest remain in rest until acted on by an unbalanced force.
What is the difference between a mechanical wave and a electromagnetic wave
mechanical waves require a medium to travel through while electromagnetic waves do not
what is the difference between climate and weather?
Climate is the average temperature per day while weather is forecast and the current state of the atmosphere.
Give reasons why a bacteria can be both alive and not alive
Alive: can move, injects DNA, can find bacteria
Not alive: no brains, no energy, have no heart
What does the kinetic molecular theory mean?
It defines the laws of particles with energy
what are the 3 methods for transferring charges?
conduction, induction, and friction
How come we can see a rainbow sometimes?
this is because visible light allows you to see all colors.
What are the 5 steps of the lytic cycle?
Attantchment, entry, DNA/RNA replication, assembly and finally release/ lyce
According to Newtons Law of Universal Gravitation, as mass...the gravitational force decreases because they are...proportional.
decreases and directly.