WorksheetsPhysics - Spring Final Review
Total questions: 29
Worksheet time: 58mins
When dividing like numbers with exponents, you _____ the exponents.
add
subtract
multiply
divide
When converting, you either add or subtract the conversion factor.
True
False
Convert 10 ft to m.
Use 3.28 feet = 1 meter. Round your answer to two decimal places.
328 m
0.328 m
3.05 m
32.8 m
Convert 10 mph (miles per hour) to m/s.
Use 1609 m = 1 mile. Round your answer to two decimal places.
161 m/s
16090 m/s
22.4 m/s
4.47 m/s
Select the description that best matches the energy-bar chart and accompanying energy equation shown here.
A car skids from a high speed to a stop with its brakes applied. The initial state is the cartraveling at a high speed and the final state is the car at rest. The force of friction does work on the car, thus changing the total mechanical energy.
A skier starts from rest on top of hill A and skis into the valley and back up onto hill B. The skier utilizes her poles to propel herself across the snow, thus doing work to change her total mechanical energy. The initial state is on top of hill A and the final state is on top of hill B. Ignore frictional forces.
A moving cross-country skier skis from the top of a hill down into a valley and up a second smaller hill. The initial state is the skier in motion on top of the first hill and the final state is the skier in motion on top the second hill. He uses his poles to propel himself. Ignore the effect of friction and air resistance.
A Hot Wheels car starts from rest on top of an inclined plane and rolls down the incline through a loop and along a horizontal surface. The initial state is the car at rest on top of the hill and the final state is the car in motion at the bottom of the hill. Friction and air resistance have a significant effect on the car.
The units of electric charge are _____.
k
C
q
N
The negatively charged particle that orbits an atom's nucleus is the _____.
electron
proton
neutron
positron
Electric fields are ____ when the field lines are farther apart.
smaller
bigger
stronger
weaker
What is the electric force between an object with a charge of +1 C and an object with a charge of -2 C that are 2 m apart?
4.5x109 N
-4.5x109 N
0.5 N
-0.5 N
The power dissipated by a circuit elements is equal to the current passing through it ____ the voltage drop across it.
times
plus
minus
divided by
What type of circuit is depicted here?
parallel
series
combined
none of these
What is the equivalent resistance for this circuit if each resistor has a resistance of 3 Ω?
3 Ω
2 Ω
1 Ω
9 Ω
A typical color television draws 10 A of current when connected across a potential difference of 120 V. What is the effective resistance of the television set? Answer in units of Ω.
130 Ω
110 Ω
1200 Ω
12 Ω
Jim and Gina are swinging on adjacent swings at the school playground. Jim's swing is a foot shorter than Gina's. Who, if either, will take more time to swing back and forth?
Jim
Gina
They will take the same amount of time.
More information is needed.
Sound in air can best be described as which of the following type of wave?
longitudinal
transverse
electromagnetic
sinusoidal
“Doing the wave” is a common activity in large football stadiums. What type of wave is this?
longitudinal
transverse
electromagnetic
compression
A tuning fork produces a sound with a frequency of 200 Hz and a wavelength in air of 1.5 m. What value does this give for the speed of sound in air? Answer in units of m/s.
133 m.s
344 m/s
300 m/s
30 m/s
The highest frequencies humans can hear is about 20000 Hz. What is the wavelength of sound in air at this frequency? The speed of sound is 340 m/s.
Answer in units of m.
0.017 m
17 m
1.7 m
170 m
In a nighttime infrared image of a heated house, the windows glow brightly. However, textbooks claim that glass is opaque to infrared radiation. This would be
I) due to cold walls;
II) due to warm windows;
III) due to people’s heat signature;
IV) due to detection of fire place from the window;
I, II and IV
I and IV only
II only
I and II only
What is the difference between gamma rays and infrared rays?
Gamma rays have a lower frequency and longer wavelength.
Gamma rays have a higher frequency and shorter wavelength.
Gamma rays have a lower frequency and shorter wavelength.
Gamma rays have a higher frequency and longer wavelength.
If a bell rings inside a bell jar, we can no longer hear it when the air is pumped out, but we can still see it. What differences in the properties of sound and light does this indicate?
The bell jar is a good absorber of sound.
Light needs a material medium for its transmission, while sound does not.
Sound needs a material medium for its transmission, while light does not.
There is a frequency shift of sound waves when it passes through a vacuum.
The index of refraction of crown glass for a certain wavelength is 1.5. What is the speed of that wavelength in crown glass? Answer in units of m/s.
2x108 m/s
3x108 m/s
4.5x108 m/s
1.5x108 m/s
The index of refraction for blue light is 1.34. A ray of white light enters the water at an angle of incidence of 70◦. What is the underwater angle of refraction for the blue component of the light? Answer in units of ◦.
35◦
140◦
44.5◦
70◦
The maximum resonant wavelength of a pipe of length L that is open at both ends is ___.
L
L/2
2L
L/4
When a sound source moves away from observer, the perceived frequency of the sound ____.
More information is needed.
stays the same
increases
decreases
When a sound source moves toward an observer, the perceived frequency of the sound ____.
More information is needed.
stays the same
increases
decreases
If the fundamental frequency of a guitar string is 250 Hz, what is the frequency of the next two harmonics?
125 and 53 Hz
500 and 750 Hz
500 and 1000 Hz
125 and 500 Hz
If the fundamental frequency of a guitar string is 250 Hz, what is the frequency of the next two harmonics?
125 and 53 Hz
500 and 750 Hz
500 and 1000 Hz
125 and 500 Hz
If an organ pipe is to resonate at 34.4 Hz, what is its required length if it is open at both ends? The speed of sound in air is 344 m/s. Answer in units of m.
2.5 m
20 m
10 m
5 m
