skib
shook
max aura
no cap
ops
500
DAILY DOUBLE: What charges does an electron, proton and neutron have ?
Electron- negative
Proton-positive
Neutron- neutral
500
A complete loop through which an electrical current travels.
Closed circuit
500
If you have a 12 Volt battery placed across a 6 Ohm resistor, what will the current be?
I = V/R = 12/6 = 2 A
500
Does this diagram represent a series or parallel circuit?
Parallel Circuit
500
What opens and closes a circuit?
Switch
500
Give an example of energy transformation that we did during this unit.
answers vary
-electrical energy in lamp into light energy
500
Convert 0.7778 meters into centimeters.
77.78 centimeters
500
What does this schematic represent?
resistor
500
What happens to the brightness of the light bulbs in a series circuit when you add more lights.
Each bulb gets dimmer
500
How do wet and dry cell batteries differ?
wet - liquid electrolyte, can't tip over
dry - paste electrolyte, portable
500
The flow of electrical charges, represented by the letter "I" is called ____.
Current
500
What is the difference between energy transfer and energy transformation?
energy transfer is movement of energy through objects; energy transformation is change of energy from one form to another
500
What is Ohm's law
V= RI
Voltage = resistance * Current
500
What is electric power, its units and the equation for it?
work performed by electricity, Watts (W), W= I x V
500
Does this diagram represent a series or parallel circuit?
Parallel
500
What are the base units of the metric system?
length (meters), mass (grams) and volume (liters)
500
Aluminum foil - conductor or insulator?
Conductor
500
DAILY DOUBLE: The basic building blocks of all objects and substances.
Atom
500
If you place a 50 Volt power source across a 10 Ohm resistor, what will the current be?
I = V/R = 50/10 = 5 A
500
What does this schematic represent?
single cell battery
500
What is energy and what are the two main types?
ability to do work; kinetic and potential
500
Wood - Conductor or Insulator?
Insulator
500
What is the unit of measurement for electrical current?
Ampere (A)
500
What is an electromagnet?
a type of magnet that is created when electricity flows through a wire. can be turned on and off
500
What kind of circuit is this?
Series