Different household appliances use electrical energy at different rates
What is True
100
contains a piece of metal that melts if the current becomes too high
What is fuse
100
Resistance is measured in a unit called the ohm or volt
What is ohm
100
Draw a series circuit on the board that has one light and a battery
100
Describe how you could quickly determine whether a string of lights is wired in series or in parallel
What is Remove one bulb. If series, all go out, if parallel, the remaining lights will stay on
200
A conductor is a material that doesn't allow electrons to flow through it easily
What is False, insulator
200
allows electrons to move through it easily
What is conductor
200
A path that allows only one route for an electric current is called series circuit or parallel circuit
What is series circuit
200
Draw a parallel circuit that has two lights and a battery on the board
200
The reading on an electric meter was 2,345 kWh. One month later is was 3,456 kWh. How much electrical energy was used during the one-month period?
What is E = 3,456 kWh - 2,345 kWh = 1,111 kWh
300
A lightning bolt occurs when billions of protons are transferred at the same time
What is False, electrons
300
contains a piece of metal that bends when it gets hot
What is circuit breaker
300
Electric charge that has accumulated on an object is referred to as static electricity or current circuit
What is static electricity
300
draw a circuit that represents the way that a home is usually wired on the board
300
The reading on an electric meter was 2,345 kWh, one month later it was 3,456 kWh. How much was the electric bill if the electricity costs $0.10 per kilowatt-hour?
What is 1,111 x 0.10 = $111.10
400
The rearrangement of electrons on a neutral object caused by a nearby charged object is called charging by induction
What is True
400
detects the presence of electric charges
What is electroscope
400
which of the following is a device designed to open an overloaded circuit and prevent overheating resistor or circuit breaker
400
Draw a circuit that causes an entire string of decorative lights to go out when one of the bulbs burn out on the board
400
P = I x V
An air conditioner uses 1,800 W of power when plugged into a wall socket that operates at a voltage of 210 V. What is the current flowing through the air conditioner?
What is I = P/V = 1,800 W / 210 V = 8.57 A
500
The unit to measure current is the volt
What is False, amperes
500
does not allow electrons to move through it easily
What is insulator
500
What is an example of a conductor gold or wood
What is gold
500
Draw a circuit that has three light bulbs in series and two in parallel connected to one battery on the board
500
A television that requires an average of 0.50 A of current is operated on a 12 V service for 3.0 hours. How much energy is used?
P = I x V
E = P x t
What is P = 0.50 A x 120 V = 60 W
E = 60 W x 3.0 h = 180 Wh