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Physics 1B Final Review
Terms in this set (47)
If two waves, one with the amplitude of 1 meter and one with the amplitude of 2 meters constructively interfere, what would be the resulting amplitude? If it was a sound wave what would be the result of this changing amplitude?
3 meters, the sound wave would have an increased volume
What subatomic particle accounts for an element's specific line spectrum?
The time for one complete vibration or oscillation is the
A series circuit
shares the same amount of voltage regardless of devices in the circuit
As a water wave moves toward shore, which of the following is transferred with the wave?
both water and energy
Polarized lenses are useful because light travels as a
What is Diffraction?
bending of a wave due to passing through a new medium
What two colors of pigments will produce green?
cyan and yellow
The flow of electric charge is called
Rubbing a finger around the rim of a crystal glass will produce a specific sound characteristic of the crystal. This is said to be the crystal's
A 100-Watt light bulb is in a lamp connected to a 120-V outlet. How much current is in the light bulb?
A quantum of light is a/an
Which color of visible light has the highest frequency?
The human ear responds to frequencies between 20 Hz and 20 000 Hz. Bats can detect frequencies up to 100 000 Hz. Frequencies between 20 000 Hz and 100 000 Hz would be classified as
A nucleus is unstable when
the electromagnetic force overcomes the strong nuclear force
What color of light mixed with blue will produce white light?
Which of the following does not travel as a transverse wave?
Brittany brushes her hair on a dry, cold day. Her hair begins to stands on end, attracted to the brush. This type of charging is called
An object can be charged due to gaining or losing
_______________________are both utilized to form a rainbow in the sky
reflection and refraction
A hypnotist swings his watch from a 0.30 m long chain. What is the period of the swing?
T=2pi x sqrt(L/g) T=6.28 x sqrt(.3/9.8)
Standing waves are produced by the interference of a reflected wave and an incident wave that are_________________.
out of phase
In a sound wave, a compression is an area of _____________ .
Sound waves cannot travel through which of the following substances:
How are frequency and pitch related?
when frequency increases, pitch increases
Which of the following has the least energy?
If two notes are played, one at 250 Hz and the other at 253 Hz, what is the combined beat frequency?
The combined beat frequency is 3Hz, because 250Hz cancels out on both sides.
Explain what the Doppler Effect is and how it can be heard when a car horn is being sounded. Who notices the effect? Who does not notice the effect?
The Doppler Effect is the change in frequency of a wave motion due to the freuency of the receiver. When a car horn is sounded it sounds louder or softer depending on how close or far the honking car is from the observer, the observer notices the effect but the person honking does not.
What two colors of light will produce magenta?
red and blue
The bending of light as it passes through one medium into another is called
When a toy car travels from tile to carpet, the car_____________________.
slows down and bends towards the normal
What type of image do mirrors produce?
A diverging lens will produce an image that is ___________________________.
virtual and right-side up
If a ray of light is incident on a mirror at an angle of 47⁰ to the normal, the angle of reflection is
When monochromatic light waves interfere due to diffraction, ____________________.
light fringes indicate constructive interference
List the following as they appear on the electromagnetic spectrum:
You should also indicate the direction of increasing frequency and the direction of increasing wavelength.
Radio waves- longest wavelength and lowest frequency
X-rays- highest frequency and shortest wavelength
Explain why the atomic spectra is considered the "fingerprint" of an element.
Atomic spectra is considered the "fingerprint" of an element because no two elements have the same spectra and can be told apart just by looking at it.
Calculate the electric force between two electrons that are 5.3 x 10-11 m apart (electron charge = -1.6 x 10-19 C).
8.2 x 10-8 N
An electron's charge is
What is considered to be the "push" or "pressure" that is applied in an electric circuit?
Alternating current is
produced by a generator
Calculate the total current in a circuit with 2-ohm, 4-ohm, 3-ohm resistors connected in series with a 110-V source.
I=V/R I= 110V/ 9ohms
What would happen if the coil of an electromagnet were increased so that there were twice as many coils?
the voltage would increase by a factor of 2
can increase or decrease voltage to a device
Calculate the amount of power used by a portable DVD player that uses 9.5 volts and 1.2 amperes. Show all work including formulas and units.
Write the formula for Coulomb's Law and the Law of Universal Gravitation. Compare and contrast the two laws.
Coulomb's Law: F=k(q1q2/d^2)
Law of Universal Gravitation: F=G(m1m2/d^2)
Both laws are inverse square laws, but Coulomb's deals with attractive or repulsive forces, uses the product of the charges and on a large magnitude, where Universla Gravitation only deals with attractive forces, uses the product of the masses and on a small magnitude
How are magnets similar to charges? How are they different?
Magnets and charges both have poles, and both have attractive forces between opposites and repulsive forces between alikes. Electric charges are able to be isolated where magnetic charges cannot.
THIS SET IS OFTEN IN FOLDERS WITH...
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