What is the effect of bringing like charges together?
It requires work to be done.
What is the effect of separating opposite charges?
It requires work to be done.
What happens to a proton's electric potential energy as it moves towards a negative plate?
The electric potential energy decreases.
What happens to a proton's kinetic energy as it moves towards a negative plate?
The kinetic energy increases.
What happens to the electric potential energy stored in a capacitor if the distance between the plates is doubled (after being disconnected from the battery)?
The electric potential energy doubles.
What is the key difference between electric potential energy (U) and electric potential (V)?
Electric potential energy (U) is the energy associated with a charge in an electric field, while electric potential (V) is a property of the field itself (potential energy per unit charge).
Compare the nature of electric potential energy and electric potential.
Electric potential energy is a scalar quantity, while electric potential is also a scalar quantity.
Compare the units of electric potential energy and electric potential.
Electric potential energy is measured in Joules (J), while electric potential is measured in Volts (V).
Define electric potential energy.
The energy a charge possesses due to its location in an electric field; symbol U, measured in Joules (J).
Define electric potential.
Electric potential energy per unit charge; a property of the electric field, measured in Volts (V).
Define work done by an electric field.
The energy transferred when a charge moves from one point to another in an electric field.
What is the formula that relates work, charge, and change in electric potential?
$W = q\Delta V$, where W is work, q is charge, and \Delta V is the change in electric potential.
What does a negative value of work done by the electric field indicate?
The final electric potential is less than the initial electric potential; the charge is moving 'uphill'.
What does a positive value of work done by the electric field indicate?
The final electric potential is greater than the initial electric potential; the charge is moving 'downhill'.
