Download Higher HW “Wave Properties”

Higher HW “Wave Properties”
1) Draw a diagram of a transverse wave (sinusoidal). Mark on in the
amplitude, wavelength, peak and trough.
2) An electromagnetic wave has a frequency of 300MHz. Calculate the
wavelength and period of oscillation this wave.
3)
a/ A woman sitting playing her banjo on her porch is watching a
lightning storm. She counts the time between the sound of thunder and
the lightning flash as 5 seconds. Using an appropriate estimation for the
speed of sound, calculate how far away the storm is.
b/ Three minutes later she counts again and the time difference
between the thunder and lightning is reduced to 3 seconds. Calculate the
speed the storm is moving toward her.
4) A surfer is watching waves at a beach while waxing her board. She
counts 14 breaking waves in a time of 2 minutes. Calculate the period
and frequency (in Hz) of the swell.
5) A radio signal is broadcast using a carrier wave with a wavelength of
150m.
a) With what speed does it travel?
b) If it takes 5µs to travel from the transmitter to the receiver, how far
apart are they?
c) To what frequency must the receiver be tuned?
6) A microwave signal is sent directly up from the equator to a
geostationary satellite and back down again. The signal is processed
inside the satellite in a time of 0.03ms. Calculate the minimum transfer
time of this signal from start to finish.
7)
a/
Write down the three primary colours, and the combinations
which make up magenta, cyan, yello and white.
b/ List the colours of the rainbow in order of wavelength, smallest
first.
Higher HW “Wave Properties”
1) Draw a diagram of a transverse wave (sinusoidal). Mark on in the
amplitude, wavelength, peak and trough.
2) An electromagnetic wave has a frequency of 300MHz. Calculate the
wavelength and period of oscillation this wave.
3)
a/ A woman sitting playing her banjo on her porch is watching a
lightning storm. She counts the time between the sound of thunder and
the lightning flash as 5 seconds. Using an appropriate estimation for the
speed of sound, calculate how far away the storm is.
b/ Three minutes later she counts again and the time difference
between the thunder and lightning is reduced to 3 seconds. Calculate the
speed the storm is moving toward her.
4) A surfer is watching waves at a beach while waxing her board. She
counts 14 breaking waves in a time of 2 minutes. Calculate the period
and frequency (in Hz) of the swell.
5) A radio signal is broadcast using a carrier wave with a wavelength of
150m.
a) With what speed does it travel?
b) If it takes 5µs to travel from the transmitter to the receiver, how far
apart are they?
c) To what frequency must the receiver be tuned?
6) A microwave signal is sent directly up from the equator to a
geostationary satellite and back down again. The signal is processed
inside the satellite in a time of 0.03ms. Calculate the minimum transfer
time of this signal from start to finish.
7)
a/
Write down the three primary colours, and the combinations
which make up magenta, cyan, yello and white.
b/ List the colours of the rainbow in order of wavelength, smallest
first.