Level 1
What natural resources are nonrenewable?
Cole, oil, natural gas, nuclear, uranium.
Voltage is measured in what?
Volts (V)
What does ohms law state?
It describes that the ratio of voltage to current is resistance.
What are negative things about nonrenewable energy?
It is harmful for the environment, and will eventually run out.
Resistance is measured in what?
Ohms
What does the equation V=IR mean?
It means that voltage is equal to current multiplied by resistance.
What are good things about renewable resources?
What are bad things about renewable resources?
They are expensive to start at first, difficult to transport, and not always reliable.
What is current measured in?
Amps (A)
What is a circuit?
A current that moves along a wire or path in a single direction
What is a series circuit?
A circuit that has only one path for the current.
What is an example of a conductor?
A material that allows electricity to pass through it.
What is the name for materials that don't allow electricity to pass through it?
Insulators
What is a parallel circuit?
A circuit that has several path for the electricity to flow.
What are good things about nonrenewable resources?
They are pretty reliable, easy to transport, and cheap.
What is an insulator?
A material that current cannot pass through easily.
What letter stands for current?
I
How does a battery work?
Each terminal of a battery is connected to a different type of chemical. The chemical at the negative terminal releases electrons, which flow to the positive terminal. The chemical at the positive terminal attracts the electrons released by the negative terminal.
How do the dimensions of a resistor affect current?
If the resistor is long and narrow, the current will be slower and there will be more resistance. On the other hand, if the resistor is shorter and wider there will be a greater current and less resistance.