Term
| highest point is reached when |
|
Definition
|
|
Term
| acceleration at the highest point is |
|
Definition
|
|
Term
| when you see projectile motion think... |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
| vertical motion is the same as a particle thrown upward with |
|
Definition
|
|
Term
| horizontal motion is the same as a particle moving with |
|
Definition
| constant horizontal speed of Vox |
|
|
Term
| no change in motion unless |
|
Definition
|
|
Term
| when you see Fnet=0 think |
|
Definition
|
|
Term
|
Definition
|
|
Term
| action and reaction forces always act |
|
Definition
|
|
Term
| maximum torque when theta= |
|
Definition
|
|
Term
| minimum torque when theta = |
|
Definition
|
|
Term
|
Definition
|
|
Term
| counterclockwise torques are |
|
Definition
|
|
Term
| work is zero when force and displacement are |
|
Definition
|
|
Term
| the centripetal force does |
|
Definition
|
|
Term
| force needed to lift an object equals |
|
Definition
|
|
Term
|
Definition
|
|
Term
| rate of energy change means |
|
Definition
|
|
Term
| using a pulley, ____ amount of work is done |
|
Definition
| the same! only the force is less |
|
|
Term
| in inelastic collisions, the total KE before is ___ than the total KE after |
|
Definition
|
|
Term
| in inelastic collisions ____ applies |
|
Definition
| ONLY conservation of momentum |
|
|
Term
| in elastic collisions ___ applies |
|
Definition
| conservation of momentum and conservation of energy |
|
|
Term
| temperature is a measure of |
|
Definition
| the random kinetic energy of the molecules of a substance |
|
|
Term
| two bodies in contact and in thermal equilibrium have |
|
Definition
|
|
Term
|
Definition
| direct transfer of energy from molecule to molecule through molecular collisions |
|
|
Term
|
Definition
| transfer for heat by physical motion of heated material (only in liquids and gases) |
|
|
Term
|
Definition
| transfer of energy by electromagnetic waves |
|
|
Term
| electromagnetic waves can |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| amount of heat required to raise 1 kg of a substance 1 degree |
|
|
Term
| equation for the amount of heat gained or lost by a substance during a phase change |
|
Definition
Q=mL
L=heat of transformation |
|
|
Term
| temperature ___ during a phase change |
|
Definition
|
|
Term
| work done by a gas on its surroundings ____ the volume of a gas |
|
Definition
|
|
Term
| work done on a gas ___ the volume of the gas |
|
Definition
|
|
Term
| area under the pv curve is |
|
Definition
|
|
Term
| work is ___ if volume is constant |
|
Definition
|
|
Term
| change in internal energy equation: |
|
Definition
U= Q-W where...
Q= heat to the body
W= work done By |
|
|
Term
| entropy of a ___ system ____ for all real processes |
|
Definition
|
|
Term
|
Definition
|
|
Term
| the entropy of a system can decrease as long as |
|
Definition
| the entropy of its surroundings increases by at least that much (ex: refrigerator) |
|
|
Term
|
Definition
| ratio of a density of a substance to the density of water |
|
|
Term
|
Definition
|
|
Term
| pressure depends on the density of |
|
Definition
| the liquid but not of the object! |
|
|
Term
| molecules of a liquid experience ___ forces: |
|
Definition
|
|
Term
|
Definition
| molecules feel an unbalanced force pulling them back toward the liquid ---therefore the cohesive forces dont cancel out |
|
|
Term
| increased velocity means ___ pressure |
|
Definition
|
|
Term
| decreased velocity means ____ pressure |
|
Definition
|
|
Term
|
Definition
| measure of the frictional force in a fluid |
|
|
Term
| a large youngs modulus means a large stress produces.... |
|
Definition
| only a small strain---means a strong material |
|
|
Term
| strong materials have a ___ youngs modulus |
|
Definition
|
|
Term
| bulk modulus describes the change in |
|
Definition
| volume of a material, young only deals with length |
|
|
Term
|
Definition
|
|
Term
| electric field of a positive charge points |
|
Definition
|
|
Term
| electric field of a negative charge points |
|
Definition
|
|
Term
| field lines reflect how a ___ charge would be accelerated in the electric field |
|
Definition
|
|
Term
|
Definition
| the potential at every point along the line is the same |
|
|
Term
| potential difference between any two points on an equipotential line is |
|
Definition
|
|
Term
| work depends only on the potential difference of |
|
Definition
| the two line and not on the path |
|
|
