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Science Final
Physical Science
31
Science
9th Grade
05/19/2010

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Cards

Term
Motion
Definition
An objects change in position relative to a reference point.
Term
Reference Point
Definition
A stationary object
Term
Displacement
Definition
The change of a position in a object.
Term
Friction
Definition
A force that opposes motion between two surfaces are in contact.
Term
Projectile Motion
Definition
The motion of objects that are moving in two dimensions under the influence of gravity.
Term
Momentum
Definition
A quantity defined as the project of the mas and velocity of an object.
Term
Velocity
Definition
The speed of an object in a certain direction.
Term
6 simple machines
Definition
1. Pulley
2. Screws
3. Incline Plane
4. Wheel and Axle
5. Wedge
6. Lever
Term
Newton
Definition
S.I. Unit of force
Term
Power
Definition
work
------
time
Term
Compound machines
Definition
A machine made of more than one simple machine.
Term
Potential Energy
Definition
The stored energy resulting from the relative position of an object in a system.
Term
Convection
Definition
Can result in transfer of energy as heat
Term
Kinetic Energy
Definition
The energy of a moving object due to its motion.
Term
Temperature
Definition
A measure of how hot or cold something is.
Term
Heat
Definition
Energy transferred through objects that are different temperatures.
Term
Conduction
Definition
Transferring.
Term
Radiation
Definition
Energy transferred as electo magnetic waves
Term
Pitch
Definition
How high or low something is
Term
Frequency
Definition
Amount of waves given in a cretin amount of time.
Term
Wavelength
Definition
from one point of a wave to identical part of the wave.
Term
Intensity
Definition
The rate of energy flows through a space
Term
Amplitude
Definition
rest, waves medium
Term
Sonar
Definition
Determines location of a object
Term
Radar
Definition
Uses radio waves to determine velocity and location of an object
Term
Photons
Definition
A unit 0
Term
Temperature
Definition
C F k
Term
Electromagnetic Spectrum
Definition
All frequencies of wave lengths
Term
Reflection
Definition
A bouncing back ray
Term
Refraction
Definition
Bending of a light ray as it passes from one substance to another
Term
Diffraction
Definition
Change of direction of a wave when it finds a object
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