Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/47

Click to flip

47 Cards in this Set

  • Front
  • Back
Newton's Laws of Motion:
1st Law
an object will remain at rest unless a total force is exerted on it (inertia)
Newton's Laws of Motion:
2nd Law
An object's acceleration is in the same direction as the force exerted on it.
Newton's Laws of Motion:
3rd Law
For every action there is an equal and opposite reaction. (The Law of Conservation of Momentum)
Speed (definition)
how fast an item is moving without consideration of the objects direction
Velocity (definition)
involved both speed & direction
Acceleration (definition)
change in velocity over time
calorie (definition)
amount of engery it takes to raise 1 gram of water by 1 degree Celsius.
Calorie (definition)
amount of energy it takes to raise 1 kilogram of water by 1 degree Celsius.
Weight (definition)
represents the poull that the Earth's gravity has on an object
Mass (definition)
amount of matter an object contains
Two ways a wave travels
Longitiudinal & Tranverse
Describe longitiudinal (wave travel)
back and forth motion
same direction as the medium
Describe transverse (wave travel)
up and down motion
perpendicular direction as the medium
Work (formula)
force X distance
What determines pitch & loudness? (sound wave)
pitch - wavelength
loudness - amplitude
In a light wave, amplitude is related to _________.
brightness
Explain the Doppler Effect.
When an object is moving toward another object it is compressing the wave (blue shift). When an object is moving away from another object the wave is being stretched (red shift).
What are the 3 types of radioactive decay?
1. Alpha
2. Beta
3. Gamma
Describe Alpha Decay.
the loss of 2p + 2n = He
The element changes to 2 down of the periodic table.
Describe Beta Decay.
-n = p + e (+ neutrino).
The element changes to 1 up on the periodic table.
Describe Gamma Decay.
The protons and neutrons are reshuffling to find a more efficient arrangement. The element is the same but the engery is less.
Operation of the CT scanner.
The patient is on the x-axis while the scanner works in a sprial, moving on 2 axis' at a time.
Laws of Thermodynamics:
1st Law
neither matter nor energy can be created or destroyed.
Laws of Thermodynamics:
2nd Law
Law of Increased Entrophy. When useable engery gets used it becomes unuseable. Once engergy is unuseable it cannot become useable again. An increase in unuseable engery is an increase in entropy.
Law of Thermodynamics:
3rd Law
refers to absoulte zero (0 degress Kelvin). However, nothing can reach absolute zero due to the 2nd Law of Thermodynamics.
Areas most suseptible to radition.
lens of eye, skin, GI tract (if ingested), reproductive organs
Fission
nucleus splits apart with strong force energy released (heavier than Fe)
Fusion
molecules join together (lighter than Fe)
Isotope
varying number of neutrons within an element
Half-life
The amount of time it takes for half of the isotopes to revert back to their most common form; e.g. C14 to C12
Describe Gamma Decay.
The protons and neutrons are reshuffling to find a more efficient arrangement. The element is the same but the engery is less.
Operation of the CT scanner.
The patient is on the x-axis while the scanner works in a sprial, moving on 2 axis' at a time.
Laws of Thermodynamics:
1st Law
neither matter nor energy can be created or destroyed.
Laws of Thermodynamics:
2nd Law
Law of Increased Entrophy. When useable engery gets used it becomes unuseable. Once engergy is unuseable it cannot become useable again. An increase in unuseable engery is an increase in entropy.
Law of Thermodynamics:
3rd Law
refers to absoulte zero (0 degress Kelvin). However, nothing can reach absolute zero due to the 2nd Law of Thermodynamics.
Areas most suseptible to radition.
lens of eye, skin, GI tract (if ingested), reproductive organs
Fission
nucleus splits apart with strong force energy released (heavier than Fe)
Fusion
molecules join together (lighter than Fe)
Isotope
varying number of neutrons within an element
Half-life
The amount of time it takes for half of the isotopes to revert back to their most common form; e.g. C14 to C12
Entropy
lowest energy state; state of chaos
Law of Reflection
the angle of reflection is equal to the angle of incidence
4 fundamental forces on Earth
1. Gravity
2. Electromagnetism
3. Strong force
4. Weak force
Waves (definition)
a traveling disturbance
3 types of heat transfer
1. Conduction
2. Convection
3. Radiation
Simple Machines
1. Lever
2. Inclined plane, wedge, screw
3. Wheel & axle
4. Pulley - change direction/change effort
Work (definition)
force placed on an object to cause displacement.