a a convenient measure of pressure equivalent to 1 atmosphere or 1.01×105 pascal.
b the SI unit of measurement of frequency; equivalent to s-1.
c the original nucleus during a radioactive decay.
d the rate of change in energy, or the rate of doing work.
e the projection of a vector upon a given coordinate axis.
5 Multiple Choice Questions
the phenomenon in which waves present simultaneously at the same position add together to form a bigger wave.
the electrostatic potential difference between the terminals of a circuit or battery when no current is flowing. Also called electromotive force.
the horizontal distance a projectile travels.
the electrostatic potential difference between the terminals of a circuit or battery when no current is flowing.
a model of an ideal gas that treats it as a collection of molecules undergoing motion according to Newton's laws of classical mechanics and predicts macroscopic quantities such as pressure and temperature in terms of molecular properties, such as the velocity of the molecules.
5 True/False Question
thermal contact → contact between objects that allows them to influence each other's temperatures.
lines of force → a pictorial representation of an electric field or magnetic field or any other vector field. Also called field lines.
electric field (vector; V/m) → the force felt by a positive unit test charge in a region of space, due to the influence of other charges. Electric fields are produced by stationary and moving charges.
voltmeter → a device that permits light of only one polarization to pass through.
impulse (vector; N-s) → the product of the average force acting on an object and the time over which it acts.