PLATO / Edmentum End of Semester
Test: Physics B
1. A rate q actions from factor A to point B. The ability power of the rate at point A is
five.Three × 10-10 joules and at point is B is three.1 × 10-10 joules. If the kinetic strength
of the price at point A is 0, what's the kinetic energy at point B? - ANS-2.2 × 10-10 joules
2. A mixed circuit has two resistors in series (27.Five ohms and 33.0 ohms) and another in
parallel (22.Zero ohms). If the energy supply is 9.0 volts, what will the current be? -
ANS-zero.56 amps
3. A gamma ray with an strength of 3.Forty × 10-14 joules moves a photographic plate. We
recognize that Planck's consistent is 6.63 × 10-34 joule·seconds. What is the frequency
of the photon? - ANS-five.Thirteen × 1019 hertz
4. A negatively charged glass rod is introduced close to a neutral desk tennis ball. What will
appear to the impartial desk tennis ball? - ANS-The desk tennis ball becomes polarized,
with wonderful expenses towards the glass rod.
5. A portable DVD player calls for six 1.Five-volt batteries to operate. If the resistance in the
circuit is 7.2 ohms, what is the contemporary? - ANS-1.Three amps
6. A collection circuit has two 5.0-ohm resistors and a electricity supply of 9.Zero volts. How
will the cutting-edge be affected and what's going to it's if some other resistor (with a
resistance of seven.Five ohms) is added to the circuit? - ANS-GOT THIS ONE WRONG,
the solution is NOT "boom; zero.Fifty one amps"
7. A sound wave enters a new medium wherein sound travels faster. How does this affect
the frequency and wavelength of the sound? - ANS-The frequency stays the equal and
the wavelength will increase.
8. A sound wave within the air has a frequency of 256 hertz and is touring at a speed of
331 meters/2d. What is its wavelength? - ANS-1.29 meters
9. A take a look at fee is located at a distance of two.0 × 10-1 meters from a fee of 5.Four ×
10-eight coulombs. What is the electric field on the test rate? (ok = 9.0 × 109
newton·meter2/coulomb2) - ANS-1.2 × 104 newtons/coulomb
10. A toaster is plugged into an 120-volt outlet. If it has a resistance of 460 ohms, how tons
electricity does it use? - ANS-31 watts
11. A washing system uses 1.Eight × 105 watts of strength. If it's miles in use for 2 hours
consistent with day (on average), what number of kilowatt hours will it use in 30 days? -
ANS-GOT THIS ONE WRONG, the solution is NOT "36 kilowatt hours"
12. According to the regulation of reflection, what's the connection between the angle of
incidence and the perspective of reflection? - ANS-The perspective of reflection is equal
to the angle of incidence.
13. An upward force acts on a proton because it actions with a velocity of two.Zero × a
hundred and five meters/2nd through a magnetic discipline of 8.Five × 10-2 tesla
Test: Physics B
1. A rate q actions from factor A to point B. The ability power of the rate at point A is
five.Three × 10-10 joules and at point is B is three.1 × 10-10 joules. If the kinetic strength
of the price at point A is 0, what's the kinetic energy at point B? - ANS-2.2 × 10-10 joules
2. A mixed circuit has two resistors in series (27.Five ohms and 33.0 ohms) and another in
parallel (22.Zero ohms). If the energy supply is 9.0 volts, what will the current be? -
ANS-zero.56 amps
3. A gamma ray with an strength of 3.Forty × 10-14 joules moves a photographic plate. We
recognize that Planck's consistent is 6.63 × 10-34 joule·seconds. What is the frequency
of the photon? - ANS-five.Thirteen × 1019 hertz
4. A negatively charged glass rod is introduced close to a neutral desk tennis ball. What will
appear to the impartial desk tennis ball? - ANS-The desk tennis ball becomes polarized,
with wonderful expenses towards the glass rod.
5. A portable DVD player calls for six 1.Five-volt batteries to operate. If the resistance in the
circuit is 7.2 ohms, what is the contemporary? - ANS-1.Three amps
6. A collection circuit has two 5.0-ohm resistors and a electricity supply of 9.Zero volts. How
will the cutting-edge be affected and what's going to it's if some other resistor (with a
resistance of seven.Five ohms) is added to the circuit? - ANS-GOT THIS ONE WRONG,
the solution is NOT "boom; zero.Fifty one amps"
7. A sound wave enters a new medium wherein sound travels faster. How does this affect
the frequency and wavelength of the sound? - ANS-The frequency stays the equal and
the wavelength will increase.
8. A sound wave within the air has a frequency of 256 hertz and is touring at a speed of
331 meters/2d. What is its wavelength? - ANS-1.29 meters
9. A take a look at fee is located at a distance of two.0 × 10-1 meters from a fee of 5.Four ×
10-eight coulombs. What is the electric field on the test rate? (ok = 9.0 × 109
newton·meter2/coulomb2) - ANS-1.2 × 104 newtons/coulomb
10. A toaster is plugged into an 120-volt outlet. If it has a resistance of 460 ohms, how tons
electricity does it use? - ANS-31 watts
11. A washing system uses 1.Eight × 105 watts of strength. If it's miles in use for 2 hours
consistent with day (on average), what number of kilowatt hours will it use in 30 days? -
ANS-GOT THIS ONE WRONG, the solution is NOT "36 kilowatt hours"
12. According to the regulation of reflection, what's the connection between the angle of
incidence and the perspective of reflection? - ANS-The perspective of reflection is equal
to the angle of incidence.
13. An upward force acts on a proton because it actions with a velocity of two.Zero × a
hundred and five meters/2nd through a magnetic discipline of 8.Five × 10-2 tesla
