1765488
| Question | Answer |
| DISPLACEMENT | vector quantity that refers to "how far out of place an object is"; it is the object's overall change in position. (m) |
| VELOCITY | vector quantity that refers to "the rate at which an object changes its position." V=d/t (m/s) |
| ACCELERATION | Acceleration is a vector quantity that is defined as the rate at which an object changes its velocity. Vf-Vi/t (m/s^2) |
| HOOKES LAW. | the strain in a solid is proportional to the applied stress within the elastic limit of that solid. F=-Kx |
| STRAIN | Relative change in shape/size of an object due to externally-applied forces |
| STRESS | internal force (per unit area) associated with strain |
| CONVECTION | the movement in a gas or liquid caused by warm gas or liquid rising, and cold gas or liquid sinking (hot air rising,cooling and falling) |
| CONDUCTION | Transfer of energy through a medium (eg, heat or electricity through metal) without any apparent change in the medium. |
| RADIATION | a form of energy that comes especially from nuclear reactions (heat from a light bulb) |
| COOLEST STAR | M: Red stars, <3,500K |
| What type of star is the sun? | A yellow dwarf star. A GV star between 5,300 and 6,000 K |
| ABSOLUTE MAGNITUDE | the apparent magnitude a given star would have if it were situated at a distance of 10 parsecs (32.6 light years) from the earth |
| APPARENT MAGNITUDE | brightness of an object in the absence of the Earth’s atmosphere (which can scatter some of the light, causing it to dim). |
| ABSOLUTE./APPARENT MAGNITUDE FORMULA | M=m-5xlog(D/10) M=absolute magnitude m=apparent magnitude D=distance in parsecs |
| MAGNETOSPHERE | region around a planet that is influenced by that planets magnetic field |
| STEADY FLOW | Type of flow in which fluid characteristics like V, Pressure and density etc. at a point do not change in time |
| VISCOUS FLOW | Type of fluid flow in which there's a continuous steady motion of particles, motion at a fixed point always remaining constant |
| HALF-LIFE | Time it takes for one half of nuclei present to disintegrate T1/2=ln2/λ |
| V=Vo+at | X=V0t+1/2at^2 V^2=V0^2+2ax |
| F=G m1+m2/d^2 | M1 - mass of object, M2-mass of eg.Earth In m3kms2 |
| pghA=weight of fluid displaced | p=Density g=gravity h=height of liquid A=area |
| PE=mgh | KE=1/2mv^2 |
| V=2pir/T | ... |
| Fb=Wfluid | .. |
| Hooke's Law | F=-Kx |
| MASS | Measurement of how much matter is in an object |
| WEIGHT | How hard gravity is pulling on an object |
Want to create your own Flashcards for free with GoConqr? Learn more.