1. 8th grade warm ups for week of 4-30-18

2. Monday (Mon.)
WU: What are the three ways in which electricity can be transferred?
Ans: Electrical charges can be transferred through…
1: Conduction: the transfer of electrical charges through direct contact.
2: Induction: the transfer of electrical charges without direct contact/when electrons jump from one object to another
3: Friction: the transfer of electrons from one uncharged
object to another by rubbing

3. Tuesday (Tues. )
EQ: What is an electric current and how does it flow?
WU: What is an electric current and how is it measured?
Ans : 1: An electric current is the continuous flow of electrons through a material.
2: Electric currents are measured in Amps. Amps are
the amount of charges that passes through the wire in
a given unit of time.

4. Wednesday (Wed.) 5-2-18 WU: What is an electric circuit?
Ans: An electric circuit is the complete unbroken path through which electrical charges can flow continuously from one place to another.

5. Thursday (Thurs.)
WU: What are the basic parts of an electrical circuit?
Ans: 1: An electrical circuit must have
an energy source such as a battery that makes the charges move around the circuit,
a device that transforms the electrical energy,
and a conductor such as wires to complete the path of the current.
2: They can also include a switch which opens and closes
the circuit.

6. Friday (Fri.)
WU: What are the 2 types of electrical charges and how are they similar and different to magnetic poles?
Ans: 1: The two types of electrical charges are positive charges and negative charges.
2: Electrical charges that are alike and magnetic poles that are alike will repel each other.
3:Electrical charges that are different will attract to each other just like the different poles of a magnetic.
4: Electrical charges can exist alone but magnetic poles always exist in pairs.