Electricity Flashcards
What are the two types of electricity?
Static and Corrent.
What is static electricty?
A build up of charge on an object.
What is Current electricty?
Charges that move through a circuit.
What is electricty?
A force that exists between a positive and a negative charge.
What is all matter made up of?
Atoms
What are the three components of an atom?
Protons, neutrons and electrons
What charge does a proton have?
Positive charge
What charge does a neutron have?
No charge
What charge does an electron have?
Negative.
Will a positively charged atom have more or less protons then electrons?
More
Will a negatively charged atom have more or less protons then electrons?
Less
Where are protons in an atom, and how does this effect the charging of an atom?
The protons of an atom are in the nucleus, meaning then cannot be added or subtracted. To make an atom either positively or negatively charged, it is the electrons that are added or subtracted.
Describe a few ways that an object can become either negatively or positively charged.
Friction- rubbing a neutral material against another can add or remove electrons.
By contact with a charged object- if a neutral material is touched by a charged object, electrons can be transferred on the surfaces of the two objects, causing the neutral object to become charged.
Describe the law of attraction and repulsion.
Objects or opposite charges attract, whilst objects of the same charge repel. Charged objects and neutral objects can also attract each other.
Describe how lightning occures.
The particles or water and ice inside clouds are constantly moving against each other and their movements cause charges to build up in the cloud. The charges keep building up until it quickly discharges itself into another cloud or the ground bellow.
