science的問題~ need help快~~~
amount of chargeelectroscope
attract increase
conductioninduction
contact forceslaw of static charge
decreaseneutral
distance between objectsrepel
electric forcetype of charge
填空題
1A(n) _______ is a push or pull between charged objects.
2The ________state that like charges_______ and opposite charges _______.Charged objects are attracted to ________objects.
3The electric force that acts on any pair of objects depends on the ______and_______ on the objects and on the ________.
4If you increase the amount of charge on objects , you_______ the electric force .if you _______ the distance between objects,you decrease the electric force .
5 A device that can detect the presence of charge is the ______.
6 If the leaves of an electroscope become charged ,they will_____each other.
7 If a chargedrod is brought close to an electroscope and then removed ,the electroscope will become _________.
8 Charging by ________occurs when objects touch and an electric charge is transferred from one object to the other.A(n)______can be used to demonstrate this.
9 Charging by ________ occurs when objects are charged without touching.A(n)_______can be used to demonstrate this .
10 Neutral objects are attracted to charged objects because they are charge by ______.
希望路過的兄弟姐妹們能幫忙花點(diǎn)心思和時(shí)間幫幫小女子
小女子實(shí)在是難以u(píng)nderstand這些問題,還有quiz等著俺去應(yīng)付
所以`~~~~~~先謝謝大家樂~~