Pre Camcards Flashcards
Formula for precentance effience
Mechanical Wave
NEEDS a MEDIUM
Diode
Absolute Presure
Newtons 1. law
An object at rest remains at rest, or if in motion, remains in motion at a constant velocity unless acted on by a net external force
STP
Error Type?
Random Error
Reduced: By using avarge of multible measurements
A wave trough is
BølgeDAL
Force of Tension
Area under Displacement-Force curve shows
WORK in joules
Is the centripital force a fundamental force
NO
It most often is in the form of tension
Capacitance
Formel for x komponent i vektor
Formulas for constructive and destructive interference for 2 waves with equal frekvenses
Resistance Formula
Angular Displacement
Archimedes’ principle
“Every object is buoyed upwards by a force equal to the weight of the fluid the object displaces.”
Capicitor
Filament Bulb
- Følger ikke Ohms lov
- More current ⇒filament gets hotter⇒atoms vibrate more⇒more colisions with flowing electrons⇒increasing resistance
Magnetic Flux Desity
Hvor og hvorfor bruges en comutator
Ultimate Tensile strength
Electric Power
Formula for specific heat capacity c
Electric force FE between 2 charges
Elastic Colision
Total Ekin is conserved
Critical Damping
Formula for power displaced in a recister R
Fundemental Frequency
MINIMUM frequency of standing wave
Resistors in series circuits
- Total resistance is equal to the sum of the individual resistances.
Direction of magnetic field
North to South
Why is high voltage used in power transmition
Consecvense of following formula
What holds Nucleus together
STRONG NUCLEAR FORCE
Electric Field Strength (E)
Lenz law is consecvens of
Conservation of ENERGY
Critical Angle
Factors affecting directions of an induced voltage
Magnetic Fields are resutls of …….
MOVING CHARGES
Behaviour of Alpha in magnetic field
Electric Charge
Work Energy priciple
Background radioation
- Radon gas
- Kosmic radiation (some get trough earths mag-field)
- X-ray
-
Nuclear weapons testing
*
Dopplerecffect formula for observed frekvency fo, when source moves
+ when source moves away
- when source moves towards
Which wave type needs a medium
LONGITUDINAL
Error Type?
Systematic Error
Tæller man displacement i formel for Epot, spring fra ny eller gammel hvile postion i følgende situation
Ny, hvis man ikke Egrav, pot
Resistors in parallel circuits
- Individual resistances diminish to equal a smaller total resistance rather than add to make the total.
HIGH or LOW Thermal Conductivity
Electromagnetic Induction
Current can be induced to flow due to a CHANGING magnetic field
Total Internal Reflection
Formula for RESISTIVITY
Gauge pressure
Pressure measured relative to atmospheric pressure
First law of Thermodynamics
Superposition principle
Lift
Upward-acting force on an aircraft wing or airfoil.
Hvad er formlen for Amperes Law og hvad bruges den til
- B at a distance r from a long straight wire carrying current I
- µ0 er permeability of free space. B afhænger af ledningens materialle
Sammenhæng mellem angular velorcity og speed
Enhed for angular velorcity er radians/secound
Pefectly in-elastoc colision
MUST stick together after colision
Flemings RIGHT hand rule
DYNAMO EFFECT
Describe
0.6 V is THEASHOLD VOLTAGE
Important with this
Finger curled in direction of CURRENT
Current in parallel circuits
Gravertational Field Strength (g)
Lenz Law
Resistance: Impurities of metal, temperature
Factors affecting rate of conduction
Sammenhæng mellem Young’s modulus og k
- A is area
- L is nominal lenth
Particles affected by STRONG NUCLEAR FORCE
Paramagnetisk
- Bliver magntisk ved pårvirkning af eksternt magnetisk feldt
Coulomb’s Law with permittivity of free space
Defernition of a wave
“A disturbance propagating through space”
Lamp
Thermal Radiation is what wave type
Formula for TERMINAL VELORCITY
Stress is defined as
Alpha Decay
Distinction between liquid and gasses
- Gasses are compressible
- Liquids are negligibly compressible
Measurement close to true value
Accurate Measurement
What is this
Potential Divider Curcuit
CONVECTION FLOW
Relationship between wave lengh, frecvency and the speed of light
Strain is defined as
Radition Types
Voltage in parallel circuits
- Voltage is equal across all components in a parallel circuit
Induced magnetism
Normal Force FN
- Contact force
- Always acts perpendicular to contact surface
What is REFRCTION and REFLECTION
Relationship between agular velocity and speed
Upon REFRACTION what is changed
- Speed
- Frekvency
- Wave length
- Speed CHANGES
- Frekvency CONSTANT
- Wave length CHANGES
What type of transformer is this
STEP-DOWN transformer
NEWTON’S SECOND LAW OF MOTION IN TERMS OF MOMENTUM
Responsible for beta day
WEAK NUCLEAR FORCE
Speed of sound
Potential Difference
Constructive and Destructive Interference
Formula for rotational kinetic energy
Formula for Magnetic Flux
Quarcs in hadrons
MELTING and BOILING
Equation for simple hamonic oscilation
Kinematic formula without vf
Specific Gravity
S.G is equal to % of object submerged
GAMMA DECAY
What are the 3 conservations in mechanics
- Conservation of Emek=Epot+Ekin ( in isolated system)
- Conservation of Momentum
- Conservation of Angular Momentum
Formel for y komponent i vektor
Where do we place the zero point of gravitational potential energy
Makes all values of the gravitational potential energy negative.
In-elastic colision
Total Ekin is NOT conserved
Electric Field (E)
- Q1 creates E1 ⇒ E1 exerts force on Q2