True or False. The law of conservation of energy states that energy can neither be created or destroyed.
True
100
What is electricity?
The movement of tiny particles called electrons
100
Electrical forces in a circuit ____________electrons.
a. push and pull
b. build
c. light up
d. break down
a. push and pull
100
True or False. In a parallel circuit if you disconnect one part the circuit the other parts will still work.
True.
200
What are the forms of energy
What is mechanical, light, thermal, sound, electrical, chemical
200
A change from one form of energy into another is called
a. conservation of energy.
b. an energy transformation.
c. gravitational potential energy.
d. work
b. energy transformation
200
True of False. An electric current is a steady flow of electrons.
True.
200
Electricity flows from ___________________ to ______________________.
negative to postive
200
Draw a circuit. Label the parts.
What is look at individual drawings.
300
What type of energy does a light bulb give off?
Heat(thermal) light
300
When energy changes from one form to another it is called energy transformation. What kind of energy transformation happens in a radio?
a. Electrical to sound
b. Electrical to light
c. Light to electrical
d. Chemical to sound
a. Electrical to sound
300
A conductor is something that ______________.
a. electricity DOES NOT flow through well
b. takes energy from soil and makes it into light
c. electricity flows through well
d. gives energy to plastic and solids
c. electricity flows through well
300
What are the two main types of circuits?
parallel and series
300
What would happen to a light bulb in a circuit if a more batteries were added.
It would glow brighter (be brighter)
400
Which of the following is an example of primary energy?
a. sound from a speaker
b. light from a flashlight
c. electricity
d. Natural gas
d. Natural Gas
400
When you rub your hands together on a cold day, you use friction to convert
a. mechanical energy into thermal energy.
b. thermal energy into nuclear energy.
c. electrical energy into electromagnetic energy.
d. nuclear energy into electrical energy.
a. mechanical energy into thermal energy
400
An insulator is something that ______________.
a. Takes energy from soil and makes it into light.
b. Electricity DOES NOT flow through well.
c. Gives energy to plastics and solids.
d. Electricity flows through well.
b. electricity does not flow through well
400
Draw a circuit. Label the three main parts of a circuit.
power source (battery), electrical device (light bulb), conductor (wire)
400
What does a switch do in a circuit?
It turns the circuit on and off.
500
Which of the following is a type of green energy?
a. gasoline
b. coal
c. wind energy
c. Wind Energy
500
What type of conversion is taking place when natural gas is used to heat water?
a. mechanical energy into electromagnetic energy
b. light energy into chemical energy
c. thermal energy into mechanical energy
d. chemical energy into thermal energy
d. chemical energy into thermal energy
500
In order for electricity to work in your home or appliances you must have a ______________?
Circuit
500
True or False. In a series circuit, if one light burns out the others will stop working.
a. True
b. False
True
500
If I were to add a resistor to a circuit with a light bulb, what would happen to the light bulb.