General Wave Knowledge
Practice Wave Problems
Mixed Challenge!
General Circuit Knowledge
Practice Circuits Problems
100
What is the amplitude of a wave?
Distance between mid line and crest.
100
Label all parts of this wave.
100
What is the equation used to find the voltage of a battery?
V=I*R
100
A circuit has a total current of 6 Amps and a 18 V battery. What is the total resistance?
3 ohms
200
What is the frequency of a wave, and what unit is it measured in?
The number of cycles (1 up and down) a wave makes in a unit of time. Hertz.
200
A wave has a frequency of 3 Hz and a wavelength of 4. Calculate it's speed.
12 m/s
200
What is the pattern of current in a series circuit?
I(sub b)=I(sub 1)=I(sub2)=...
200
What is the total resistance of a series circuit with resistors of 3, 2, and 3 ohms?
8 ohms.
300
What is the difference between transverse and longitudinal waves?
Bonus possible.
Particles travel perpendicular to the wave motion in a transverse wave. In a longitudinal wave, the particles move the same direction as the wave.
Bonus: Longitudinal waves can't travel in a vacuum, transverse can.
300
A wave has a period of 4 seconds and a wavelength of 8 m. Calculate frequency and speed.
f= 1/4
s= 2
300
Which isn't an example of what can happen when a wave hits a new material?
a. relfection
b. refraction
c. rarefraction
c
300
If you add more resistors to a series circuit, what does the overall resistance do?
Increases.
300
What is the total current of a series circuit with resistors of 3, 2, and 3 ohms, and 16 V battery?
2 A
400
Breifly described all 4 ways a wave can change when it hits a new material.
Reflection is where the waves bounces back onto the original material.
Absorption is where the wave is absorbed into the new material.
Refraction is where a wave travels into a new material and bends at the surface.
Diffusion is where the wave hits a new material and spreads out while the energy dissipates.
400
A sound wave travels through a vacuum at 497 m/s and has a wavelength of 8 m. Calculate frequency and period.
Trick question! Sound can't travel in a vacuum.
400
You stand on the beach watching waves. You see 5 wavelengths in 25 seconds.
a. Period of waves?
b. Frequency?
c. If wave length is 10 m, what is wave speed?
a. 5
b. 1/5
c. 2 m/s
400
What is the difference between a series and a parallel circuit?
Parallel has junctions, series is one continuous loop.
400
What is the total resistance of a parallel circuit with resistors of 3, 2, and 3 ohms?
6/7 ohms
500
What is the difference between destructive and constructive interference?
Constructive interference will temporarily create a wave of INCREASED amplitude.
Destructive interference will temporarily create a wave of DECREASED amplitude.
500
The frequency of wave A is 150 Hz and the wavelength in 30 cm. The frequency of wave B is 240 Hz and the wavelength is 20 cm. Which wave is faster?
B
500
List all patterns (of voltage, current, and resistance) for each circuit (series and parallel).
4/6 gets full points. 200 bonus for all 6.
SV - overall = add all
SC - same everywhere
SR - overall = add all
PV - same everywhere
PC - overall = add all
PR - 1/overall = 1/add all
500
What is the pattern of resistance in a parallel circuit?
1/R(sub 1) + 1/R(sub 2) + ... = 1/R(TOT)
500
What is the total resistance of a paralllel circuit with resistors of 3, 2, and 3 ohms, with a 18 V battery?
39/2 A