Physics Waves And Oscillations Level: High School
Standing Waves
A pipe (open at both ends ) in air at 12.5 degree C is to be designed to produce two successive harmonics at 450 Hz and 500 Hz . How long (in meters) must the pipe be ?a) 2.47
b) 2.89
c) 3.38
d) 3.96
e) 4.63
Physics Waves And Oscillations Level: High School
Simple Harmonic Motion
A mass sits on a frictionless table . It is attached to a wall by a spring . The mass is initially located at x = 0 when the spring is unstretched (equilibrium position) . You pull the mass away from the equilibrium position , out of x = A , and then released it . The mass then oscillates horizontally back and forth in simple harmonic motion . Which of the statement below are true about this motion ?a) The total energy of the mass-spring system at x = A is the same as the total energy at x =0
b) The amplitude (A) is defined as the maximum displacement of the mass (ie, the greatest distance from the equilibrium point)
c) The potential energy of the mass spring system is maximum at x = -A
d) The magnitude of acceleration of the mass is maximum at x = -A
e) The speed of the mass is maximum at x = 0
Physics Waves And Oscillations Level: High School
Simple Harmonic Motion
A 0.353 kg mass is attached to a spring with a force constant of 45.6 N/m and released from rest a distance of 7.90 cm from the equilibrium position of the spring . Calculate the speed (in m/s) of the mass when it is halfway to the equilibrium position .a) 0.44
b) 0.58
c) 0.78
d) 1.03
e) 1.38
Physics Waves And Oscillations Level: High School
Sound Level Intensity
The intensity of sound at a given point is measured to be 0.0005 W/m^2 ,what is the decibel level of the sound ?a) 87 dB
b) 90 dB
c) 55 dB
d) 97 dB
Physics Waves And Oscillations Level: High School
Simple Harmonic Motion
A pendulum of length 2 meters is taken to a moon . If this pendulum makes 10 oscillations in 32.0 seconds , what is the value of gravitational acceleration on this moon ?a) 2.54 m/s^2
b) 3.86 m/s^2
c) 7.71 m/s^2
d) 9.86 m/s^2
Physics Waves And Oscillations Level: High School
Simple Harmonic Motion
When the amplitude of a pendulum decreases to half its initial value , the period will have :a) Remained the same
b) Halved
c) Doubled
Physics Waves And Oscillations Level: High School
Speed of Sound
The bulk modulus of gas varies with pressure . In the case of the air , the bulk modulus of air is equal to 1.40 times its pressure . The atmospheric pressure at sea level is 1.01 x 105 N/m2 . The density of air at sea level is 1.20 kg/m3 . For these conditions ,what is the speed of sound as it passes through the air ?a) 1.70 km/hr
b) 5280 ft/s
c) 328 m/s
d) 343 m/s
Physics Waves And Oscillations Level: High School
Simple Harmonic Motion
In the following formula for SHM; x = A sin(omega t+ ø) , the ø , represents :a) Period of the waveform
b) Angular frequency
c)Amplitude of oscillation
d) Phase constant
Physics Ray Optics Level: High School
Doppler Effect
When a visible object is receding , its color will ?a) Not change in the slightest
b) Shift toward the blue end of the spectrum
c) Shift toward the red end of the spectrum
Physics Electrostatics Level: High School
Gauss’s Law
What is the electric flux passing through a Gaussian surface that surrounds a +0.075 C point charge ?a) 8.5 x 10^9 N*m^2/C
b) 6.8 x 10^8 N*m^2/C
c) 1.3 x 10^7 N*m^2/C
d) 4.9 x 10^6 N*m^2/C
e) 7.2 x 10^5 N*m^2/C
Physics Electrostatics Level: High School
What is the magnitude and direction of the electric force on a -1.20 micro C at a point where the electric field is 2500 N/C and is directed along the +y axis .a) 0.15 N , -y direction
b) 0.15 N , +y direction
c) 0.0030 N , -y direction
d) 0.0030 N , +y direction
e) 4.3 N , +x direction
Physics Electrostatics Level: High School
Electric Field
Which one of the following statements is true concerning the spacing of the electric field lines in the vicinity of two point charge of equal magnitude and opposite sign ?a) It indicates the direction of the electric field
b) It does not depend on the magnitude of the charges.
c) It is large when the magnitude of the charges is large.
d) It indicate the relative magnitude of the electric field
e) It is small when the magnitude of the charges is small .
Physics Electrostatics Level: High School
Electric Field
At which point (or points) is the electric field zero N/C for the two point charges shown on the x axis ?a) The electric field is never zero in the vicinity of these charges.
b) The electric field is zero somewhere on the x axis to the left of the +4 q charge .
c) The electric field is zero somewhere on the x axis to the right of the -2q charge .
d) The electronic field is zero somewhere on the x axis between the two charges , but this point is nearer to the -2q charge
e) The electric field is zero at two points along the x axis ; one such points is to right of the -2q charge and the other is to the left of the +4q charge .
Physics Electrostatics Level: High School
Four point charges , each of the same magnitude , with varying signs are arranged at the corners of a square as shown . Which of the arrow labeled A,B,C and D gives the correct direction of the net force that act on the charge at the upper right corner ?a) A
b) B
c) D
d) D
e) The net force on that charge is zero .
Physics Electrostatics Level: High School
Consider three identical metal sphere A , B, C . Sphere A carries a charge of -2.0 microC : sphere B carries a charge of -6.0 micro C ; and sphere C carries a charge of +5.0 microC . Sphere B and C are then touched and separated . Does sphere C end up with an excess or a deficiency of electrons and how many electrons is it ?a) Deficiency , 6 x 10^13
b) Excess, 3 x 10^13
c) Excess, 2 x 10^13
d) Deficiency, 3 x 12^12
e) Deficiency , 1 x 10^12
