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Mid Term Flashcards

Question Answer
SI Unit and Abbreviation: Mass Kilogram, M
SI Unit and Abbreviation: Density Kg/m^3, D
SI Unit and Abbreviation: Distance Meters, d
SI Unit and Abbreviation: Speed m/s , s
SI Unit and Abbreviation: Velocity m/s , v
SI Unit and Abbreviation: Acceleration m/s^2, a
SI Unit and Abbreviation: Momentum Kg(m/s), p
SI Unit and Abbreviation: Force Newton, F
SI Unit and Abbreviation: Weight Newton's or Pounds, Fg
SI Unit and Abbreviation: Static Friction Newton's , Fs
SI Unit and Abbreviation: Kinetic Friction Newton , Fk
SI Unit and Abbreviation: Rolling Friction Newton , Fr
SI Unit and Abbreviation: Kinetic Energy Joule, KE
SI Unit and Abbreviation: Potential Energy Joule , PE
SI Unit and Abbreviation: Gravitational Potential Energy Joule , GPE
SI Unit and Abbreviation: Work Joule or N*m , W
SI Unit and Abbreviation: Power Watts , P
SI Unit and Abbreviation: Input Force Newton , Fi
SI Unit and Abbreviation: Output Force Newton , Fo
SI Unit and Abbreviation: Input Distance Meter , di
SI Unit and Abbreviation: Output Distance Meter , do
SI Unit and Abbreviation: Work Input Joule , Wi
SI Unit and Abbreviation: Work Output Joule , Wo
SI Unit and Abbreviation: Efficiency % , e
SI Unit and Abbreviation: Ideal Mechanical Advantage Ratio, IMA
SI Unit and Abbreviation: Actual Mechanical Advantage Ratio , AMA
SI Unit and Abbreviation: Temperature Kelvin or Celsius, T
Equation: Density Mass/Volume
Equation: Velocity Displacement/Time
Equation: Acceleration Change in Velocity/Time
Equation: Weight Mass*Gravity
Equation: Gravitational Potential Energy (GPE) Mass*Gravity*Height
Equation: Work Force*Distance
Equation: Power Work/Time
Equation: Work Input Force Input*Distance Input
Equation: Work Output Force Output*Distance Output
Equation: Efficiency (Work Output/Work Input) * 100
Equation: Ideal Mechanical Advantage (IMA) Distance Input/Distance Output
Ohm's Law Equation Current= Voltage Difference/Resistance
Equation: Electrical Power: Current*Voltage
Equation: Electrical Energy Power*Time
Types Of Technology 1. Objects (ex. Calculator, 2. Methods or Techniques (ex. Writing), 3. Knowledge or Skills, 4. System (ex. Internet)
Major Categories In Science Life Science, Earth Science, Physical Science
Put 50,345 into Scientific Notation 5.0345 *10^4
Name Different Types of Graphs Bar, Line, Pie/Circle
What is the difference between Distance and Displacement? Distance is the length of the path from starting to end. Displacement is the length of the change in location
What is a projectile? Anything shot or thrown through the air
What is the acceleration due to gravity? 9.8 m/s^2
What is the strongest type of friction? Static Friction
Newtons 1st Law An object at rest stays at rest and an object in motion stays in motion unless acted upon by an unbalanced force.
Newtons 2nd Law An objects acceleration is in the the same direction as the net force on the object.
Newtons 3rd Law Every action has an equal and opposite reaction.
Define Energy The ability to cause a change.
What are the different types of energy? Mechanical, Thermal, Radiant (light), Electrical, Chemical
What is the difference between a simple and compound machine? A simple machine does work with only one movement. A compound machine is made up of many simple machines
Name the 6 types of simple machines? Lever, Inclined Plane, Wedge, Pulley, Wheel and Axil, Screw
What is an ideal machine? A machine which the output force is equal or greater than the input force? *Theoretically Impossible
What are the parts of an atom and how are they charged? Proton – Positive, Neutron – Neutral, Electron – Negative
1st and 2nd Laws of Thermodynamics? 1st Law – doing work on a system increased the thermal energy of the system.
2nd Law – energy spontaneously spreads from areas of high to low concentration
Difference between Conductor and Insulators? Conductor – material through which electrons move easily
Insulator – material which electrons can't move through easily
What are the three materials that are magnetic? Iron, Cobalt, Nickel
What is an electromagnet? Temporary magnet created when there is a current in a wire.
What is the difference between Electric Motor and a Generator? Electric Motor- changes electrical energy into mechanical energy, Generator – changes mechanical energy into electrical.