Checkpoint Quiz #2
According to the Law of Charge Conservation:
Any charge can be destroyed or created.
All net charges are a result of molecular interactions in the atomic core.
The only way to change the net charge of a system is to bring in charge from elsewhere, or remove charge from the system.
If you double the distance between two electrons, then the force between them is:
Increased by a factor of two
Decreased by a factor of two
Increased by a factor of four
Decreased by a factor of four
Wood is known as a _____, while iron is known as a ________.
Insulator; conductor
Conductor; insulator
Insulator; insulator
Conductor; conductor
If the north pole of one magnet is brought near the north pole of another magnet, they will ____ each other.
Repel
Attract
Which of the following will produce the strongest magnetic field?
Three north pole facing magnets bundled with two south pole facing magnets
Three south pole facing magnets bundled with two north pole facing magnets
Five north pole facing magents
One north pole facing magnet bundled with four south pole facing magnets
Electrons move in an electrical circuit
By being bumped by other electrons.
By colliding with molecules.
By interacting with an established electric field.
Because the wires are so thin.
A circuit is powered with a battery. Charge flows
Out of the battery and into the circuit.
From the negative battery terminal to the positive terminal.
Only after a couple seconds pass.
Through both the battery and the rest of the circuit.
When two 1-ohm resistors are connected in series, their combined resistance is
1 ohm, and when connected in parallel, 2 ohms.
2 ohms, and when in parallel, 1 ohm.
1/2 ohm, and when in parallel, 2 ohms.
2 ohms, and when in parallel, 1/2 ohm.
In a simple circuit containing a bulb, energy is given to the moving charges by
The bulb
The wires
A generator
If a pendulum swings back and forth at 0.2 vibrations a second, then its frequency and period are:
2 Hz and 2 seconds
2 Hz and 20 seconds
0,2 Hz and 2 seconds
0.2 Hz and 20 seconds
Ocean waves move up and down at 5 times a second and have a distance between them of 3 m. What is its frequency (F), wavelength (wl), and wave speed (ws)?
F = 3 Hz, wl = 5 m, ws = 1.67 m/s
F = 3 Hz, wl = 5 m, ws = 15 m/s
F = 5 Hz, wl = 3 m, ws = 0.6 m/s
F = 5 Hz, wl = 3 m, ws = 15 m/s
In constructive interference, when two waves meet:
They cancel each other out
They add together
They move through and do not affect one another
Electromagnetic waves:
Involve moving material
Cannot travel in a vacuum
Cannot travel through a solid
Involve oscillating fields
Which of the following has the lowest frequency?
Microwave Waves
Ultraviolet Waves
Radio Waves
Gamma Waves
What image does an object located between a convex lens and its focal point produce?
A real image that is right-side up
A real image that is upside down
A virtual image that is right-side up
A virtual image that is upside down
The fact that the speed of light never changes no matter your frame of reference is a direct implication of:
The Theory of Gravity
The Theory of Relativity
The Theory of Matter
The Theory of Light
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