Flashcards in QUiz Q's answer part2 Deck (27):
If no net force is acting on a moving object
its velocity will stay the same
A coulomb is a unit of electrical
A negative electric charge is (choose all that are correct)
repelled by another negative electric charge And attracted to a positive electric charge.
An ampere (amp) is a unit of electrical
An object acquires an electrostatic charge when _______ are added or removed.
The particles that move in an electrical current are
Anything that hinders current flow is called a
For a fixed resistance, increasing the voltage will ________ the current in a circuit.
For a fixed voltage, increasing the current will ________ the power in a circuit.
What travels through a conductor at near the speed of light when a current is established?
an electric field
The unit used for measuring resistance is the
Which of the following will have the lowest resistance?
A neutral atom that gains one or more electrons is called a(n)
Electric field lines are drawn
in such a way as to show the direction of the field.
The same current will flow through two light bulbs that are connected together in
A magnetic north pole may exist by itself without a corresponding south pole.
Particles of a material that move up and down perpendicular to the direction the wave is moving are in what type of wave?
Sound waves moving through air are what type of wave?
The time required for one cycle (one oscillation) of any repeating event is called the
Sound waves travel faster in
The larger the amplitude of a wave, the higher its speed.
You hear a higher pitch when a sound wave has a greater
Frequency is the time required for one complete cycle.
Particles of a material that move back and forth in the same direction the wave is moving are in what type of wave?
Longitudinal waves with a frequency above 20,000 Hz are
When the trough of one wave arrives at the same time and place as the crest of an otherwise identical wave,
destructive interference occurs.