Physics 11
Wave Test
Name _________________
For questions involving calculations, show all work including formulae and units for
full value.
(1) Write the word the corresponds to the following definitions. (1 points each)
(a) __________________________ - the number of seconds it takes for one
complete wave to pass a given point.
(b) __________________________ - a wave in which the direction of
propagation is parallel to the direction of motion of the particles.
(c) _____________________ - when two waves combine, and the resulting
displacement is more than it had been for either of the original waves.
(d) ______________________ - two particles that have the same
displacement and are moving in the same direction.
(e) ____________________ - the area of downward displacement in a
transverse wave.
(f) ________________________ - the number of waves that pass a given
point per second.
(g) __________________ - the bending and changing of speed of water
waves as they travel from one depth of water to a different depth of water.
(h) ______________________ - the spreading out of waves beyond the edge
of a barrier.
(i) _________________________ - a wave that can travel through a material
but not through a vacuum.
(j) ________________________ - the distance between two consecutive
point on a wave that are in-phase.
(2) True or false. Place a T or F in each blank. (1 point each)
(a) A sound wave contains crests and troughs.
(b) Frequency is the reciprocal of period.
(c) 0.00000254 has 3 significant figures.
(d) The product of 4.0 m and 4.0 m is 20 m.
(e) 4.0 mm equals 0.040 m.
a. _____
b. ______
c. ______
d. ______
e. ______
(3) Fill in the blank with the correct word or number. (1 point each)
(a) A rectangle whose sides measure 8.2 cm and 5.4 cm has an area of
_______________.
(b) The spreading out of waves as they pass through an aperture is an example of
the property of waves called ______________.
(c) 3.00 x 108 m/s is the speed of all _________________________ waves in air.
(d) A car traveling 20.0 m/s is traveling ________ km/hr.
(e) The number of meters in a megameter is ____________________.
(4) Complete the following diagrams. (4 points each)
(a) Draw a wave having a wavelength of 7 cm and amplitude of 2 cm on a 14 cm
equilibrium line.
(b) Draw and label a ripple tank diagram showing waves traveling from shallow
water into deeps water with an angle of incidence of approximately 45.
(c) Draw and label a ripple tank diagram showing the effect aperture size has on the
diffraction of waves of constant wavelength.
(d) Draw and label a ripple tank diagram showing the reflection of straight waves
from a barrier if the wave fronts are not parallel to the barrier.
(5) A wave travels 2000. m in 6.00 seconds. What is the speed of the waves? (4 points)
(6) For the waves in number 5, it was discovered that 2.00 of the waves are 3.50 meters
long. Calculate the wavelength and the frequency of the waves. (4 points)
(7) The moon is 3.84 x 108 m from Earth. It takes the moon 27.3 days to travel once
around Earth. Assuming the moon travels in a circular orbit, how fast is the moon
moving around Earth in km/hr? (4 points)
(8) A blue laser has a wavelength of 475 nm. Calculate the frequency of the light waves
produced by the laser. (4 points)
(9) An earthquake strikes some distance from Truro. The wavelength of the waves
produced by the earthquake is 300. m and the frequency of the waves is 1.50 Hz. If it takes
45.00 s for the waves from the earthquake to reach Truro, how far away did the earthquake
occur? (4 points)