Electricity/Resource Flashcard

Front

What is hydroelectric power?

Back

Hydroelectric power is electricity generated by using the energy of flowing water, typically through dams.

Front

What is a negative environmental impact of hydroelectric dams?

Back

The dam causes silt and sediment buildup, which can disrupt local ecosystems.

Front

What does the law of conservation of energy state?

Back

The total energy remains constant throughout energy conversions; energy cannot be created or destroyed.

Front

What is Ohm's Law?

Back

Ohm's Law states that the current (I) through a conductor between two points is directly proportional to the voltage (V) across the two points and inversely proportional to the resistance (R). It is expressed as V = I * R.

Front

What is a toaster's function in terms of energy transformation?

Back

A toaster transforms electrical energy into thermal energy (heat) as electric current passes through its resistive elements.

Front

What is a potential negative consequence of wind turbines?

Back

Wind turbines may hurt flying animals, such as birds and bats, in the area.

Front

What is the definition of voltage?

Back

Voltage is the electric potential difference between two points in a circuit, measured in volts (V).

Front

What is current in an electrical circuit?

Back

Current is the flow of electric charge in a circuit, measured in amperes (A).

Front

What is resistance in an electrical context?

Back

Resistance is the opposition to the flow of electric current, measured in ohms (Ω).

Front

What is the relationship between voltage, current, and resistance?

Back

Ohm's Law describes the relationship: V = I * R.