AP Physics 2: 1.5 Systems Interactions and Changes

dizzy and she reaches for the metal frame for support shocking herself with [Kate touches metal frame and shocks herself]

static electricity..Which of the following statements is true select two

answers and here are our options.. Okay well terrifying heights and electric shocks [Man hanging on to skyscraper and is electrocuted]

this is not our idea of fun at a tourist attraction.. If we ever visit New Zealand and

we'll just stick to hanging out with the hobbits.. Just in case high time scary [Hobbit being photographed by people]

enough though another fun feature about tall buildings is that they get struck

by lightning that happens a lot with tall things after all which is why our [man struck by lightning on a mountain]

friend stretch doesn't go mountain climbing anymore. Though architects

need to protect people in their buildings from getting zapped...One way they do that is [Man insulating a loft]

by keeping the building insulated against electricity well glass is a

great electric insulator and rubber is too so one of our correct answers is A..

Another way they protect against lightning bolts is by providing the [Lightning strikes the Thousand Foot skyscraper in New Zealand]

electricity a way to get down to the ground safely if it hits the building

that can be done with a lightning rod which is attached to wires running down [Lightning travelling down the rod to the ground]

to the ground allowing the electricity to pass through the outside of the

structure after all lightning happens when rain clouds generate an electric

charge by running into each other just like with Kate walking in the Sky [Clouds hitting each other and Kate walking over the Sky Tower]

Tower.. The negative charge in the cloud seeks a balance and this happens when an

electricity is discharged to the ground that huge burst of charge helps bring

the clouds charge closer to neutral well that's what happens with Kate she builds

up a negative charge and by touching the metal frame of the building the [Kate with a negative charge touching the metal frame]

electrons jump off of her bringing her charge back to neutral and the static

electricity runs down the support to the ground which means C is our other

correct answer and that also means that D is wrong she's getting back to a

neutral charge not gaining a negative charge

and B is wrong because there's no such thing as a charge of 3.5 e.. E is the

elementary charge which means that it can't get any smaller 3.58e isn't [Two students holding the letter E]

possible and a possible answer well yeah that's definitely wrong so be careful

next time you go walking on a glass floor and if you do happen to pick up

static electricity make sure to zap a friend or family member it's just more [Kate touches her friend to give off static electricity]

fun to share the pain.