Podcast
Questions and Answers
What physical quantities are transported when waves propagate from one location to another?
What physical quantities are transported when waves propagate from one location to another?
- Wavelength and matter
- Frequency only
- Energy and matter (correct)
- Energy only
At what temperature does water achieve its maximum density?
At what temperature does water achieve its maximum density?
- is maximum at 4 degC (correct)
- decreases as the temperature is increased
- increases with temperature
- is minimum at 4 degC
Which classification best describes the nature of sound waves in air?
Which classification best describes the nature of sound waves in air?
- Longitudinal (correct)
- Stationary
- Transverse
- Neither B nor C
What term describes the luminous flux incidence per unit area, measured in lumens per square meter?
What term describes the luminous flux incidence per unit area, measured in lumens per square meter?
When considering all forces acting on a system, except for the gravitational force, what quantity is equivalent to the work done?
When considering all forces acting on a system, except for the gravitational force, what quantity is equivalent to the work done?
An object is placed 8 cm in front of a converging lens with a focal length of 2 cm. What is the magnification?
An object is placed 8 cm in front of a converging lens with a focal length of 2 cm. What is the magnification?
What type of image is formed when an object is placed 4 cm in front of a convex mirror with a focal length of 6 cm?
What type of image is formed when an object is placed 4 cm in front of a convex mirror with a focal length of 6 cm?
Given a sound speed of 350 m/s, what is the wavelength of a sound with a frequency of 5000 Hz?
Given a sound speed of 350 m/s, what is the wavelength of a sound with a frequency of 5000 Hz?
If the intensity of one sound is 5 times greater than another, what is the difference in their intensity levels in decibels?
If the intensity of one sound is 5 times greater than another, what is the difference in their intensity levels in decibels?
Evaluate the expression: log(2) + log(3)
Evaluate the expression: log(2) + log(3)
What is the approximate speed of sound in air when the temperature is 10 degrees Celsius?
What is the approximate speed of sound in air when the temperature is 10 degrees Celsius?
What are the standard units used to measure intensity?
What are the standard units used to measure intensity?
Determine the effective spring constant of a 10 kg mass suspended from a 1.5 m simple pendulum.
Determine the effective spring constant of a 10 kg mass suspended from a 1.5 m simple pendulum.
A stretched cord with a fundamental frequency of 144 Hz has a length of 0.9 m and a mass of 2 g. What is the wave speed?
A stretched cord with a fundamental frequency of 144 Hz has a length of 0.9 m and a mass of 2 g. What is the wave speed?
If a 100-Watt light bulb operates for 10 minutes, how much energy is consumed?
If a 100-Watt light bulb operates for 10 minutes, how much energy is consumed?
If 10 joules of energy are required to move 5 coulombs of charge between two points, what is the potential difference between these points?
If 10 joules of energy are required to move 5 coulombs of charge between two points, what is the potential difference between these points?
How does your weight change as you ascend a mountain top?
How does your weight change as you ascend a mountain top?
In nautical terms, what does a knot measure?
In nautical terms, what does a knot measure?
Which of the following is NOT an SI unit of measure?
Which of the following is NOT an SI unit of measure?
What theory describes the wave-like properties of particles?
What theory describes the wave-like properties of particles?
Flashcards
What do waves transport?
What do waves transport?
Waves transport energy and momentum from one place to another.
Sound waves are...
Sound waves are...
Sound waves are longitudinal waves, meaning the particle displacement is parallel to the direction of propagation.
Density of water is greatest at...
Density of water is greatest at...
The density of water is maximum at 4 degrees Celsius.
What is illuminance?
What is illuminance?
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Image with a convex mirror
Image with a convex mirror
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Intensity difference
Intensity difference
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log(2)+log(3)=?
log(2)+log(3)=?
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Speed of sound at 10°C
Speed of sound at 10°C
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What measures Intensity?
What measures Intensity?
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Wave speed
Wave speed
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Watts measure?
Watts measure?
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Who is Michael Faraday?
Who is Michael Faraday?
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Work is...
Work is...
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Galvanometer to voltmeter?
Galvanometer to voltmeter?
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Charge in circuit?
Charge in circuit?
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Which law is it?
Which law is it?
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Who is Issac Newton?
Who is Issac Newton?
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What is the Meissner Effect?
What is the Meissner Effect?
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What is Mach number?
What is Mach number?
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Study Notes
- Waves transport energy and matter.
- Sound waves in the air are longitudinal.
- Water density is maximum at 4 degrees Celsius.
- The work done by all forces except gravity equals the change in total kinetic energy.
- Illuminance describes luminous flux incidence per unit area in lumens per square meter.
- An object placed 8 cm in front of a converging lens with a 2 cm focal length has a magnification of -0.33.
- The image is erect and virtual when an object is placed 4 cm in front of a convex mirror with a 6 cm focal length.
- For a sound speed of 350 m/s, the wavelength of a 5000 Hz sound is 7 cm.
- If one sound's intensity is 5 times another's, the difference in intensity level is 7 dB.
- log (2) + log (3) = log (6)
- The speed of sound at 10 degrees Celsius is 337 m/s.
- Intensity is measured in W/m^2.
- The effective spring constant of a 10 kg, 1.5 m simple pendulum is 65 N.
- A stretched cord with a fundamental frequency of 144 Hz, length of 0.9 m, and mass of 2 g has a wave speed of 259 m/s.
- A 100-Watt light bulb operated for 10 minutes consumes 60 kJ of energy.
- Moving 5 coulombs of charge between two points with 10 joules of energy requires a potential difference of 2 V.
- Weight decreases slightly when ascending a mountain.
- The knot measures speed in nautical terms.
- Erg is not an SI unit of measure.
- Quantum mechanics ascribes wave-like properties to particles.
- Gamma radiation is the most penetrating of the three nuclear radiations.
- Oppenheimer is considered the father of the atomic bomb.
- A sphere with half the radius but twice the density of another sphere has less mass.
- The speed of sound at sea level in air is 340 meters per second.
- Heating a solid material always emits a continuous radiation spectrum.
- A gluon is the carrier of the strong nuclear force.
- Photons and gravitons are bosons.
- Three quarks make up a proton.
- Black bodies with rough surfaces best absorb infrared rays.
- The rate at which electrical energy is used is measured in watts.
- Michael Faraday discovered electromagnetic induction.
- Work is a scalar quantity in physics.
- To convert a galvanometer to a voltmeter, add a high resistance in series.
- A charge moving through an electric circuit in the direction of an electric force loses potential energy and gains kinetic energy.
- A photographic plate detects charged particles but does not show tracks.
- The SI prefix "atto" represents 10^-18.
- Two parallel wires carrying currents in opposite directions repel each other.
- Beta decay involves the emission of an electron in radioactive decay.
- The angle of incidence equals the angle of reflection when light is reflected from a surface.
- Curie Point is not closely associated with a non-magnetic phase diagram.
- The Weber and the Maxwell are units of magnetic flux.
- Newton's Third Law best describes the recoil experienced when firing a shotgun.
- The velocity of a car cannot be constant when driving around a circular bend.
- The force on a charged particle moving parallel to magnetic field lines is zero.
- 0.102 x 10^6 implies the greatest precision.
- Isobars depict equal pressure on a weather map.
- Isaac Newton built the first reflecting telescope.
- Electron-volt is the smallest unit of energy listed.
- The Meissner Effect is the expulsion of magnetic fields when materials become superconducting.
- Mach Number represents the ratio of an object's speed to the speed of sound.
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