1. Unit 3 Final Exam Forces & Interactions
Read each question and all answers carefully. Eliminate obvious wrong answers, then choose the best remaining answer.
Do not waste time as you will have seconds to answer each question.
No going back!

2. MS: Waves & Information Transfer MS-PS4-1
A transverse wave is transporting energy from east to west. The particles of the medium will move_____.
east to west only
both eastward and westward
north to south only
both northward and southward

3. 2. A wave is transporting energy from left to right. The
2. A wave is transporting energy from left to right. The particles of the medium are moving back and forth in a leftward and rightward direction. This type of wave is known as a ____.
Mechanical
Electromagnetic
Transverse
Longitudinal

4. 3. The amount of energy carried by a wave is determined by
3. The amount of energy carried by a wave is determined by the formula E = A2. If E is the energy, what is A called?
Crest
Trough
Wavelength
Amplitude

5. 4. How does the energy in a TRANSVERSE wave move?
Parallel to the wave vibrations.
Perpendicular to the wave direction.
Opposite to the wave vibrations.
Independent of wave direction.

6. 5. How does the energy in LONGITUDINAL waves move?
Parallel to the wave vibrations.
Perpendicular to the wave direction.
Apart from the wave vibrations.
Independent of wave direction.

7. 6. In the diagram below, what letter represents the amount
6. In the diagram below, what letter represents the amount of energy the wave has?

8. What does Line D represent in the diagram above?
The total energy of the wave.
The frequency of the wave.
The Amplitude of the wave.
How strong we feel the wave.
None of the above is correct.

9. 8. In the diagram below, what letter denotes (shows) the wavelength?
MS-PS2-2
8. In the diagram below, what letter denotes (shows) the wavelength?

10. What type of wave is represented in the diagram below?
Longitudinal
Compressional
Transverse
Sound

11. 10. What type of wave does the diagram below represent?
Transverse
Sound
Electromagnetic
Light

12. MS: Waves and Information Transfer
MS-PS4-2
11. A medium is able to transport a wave from one location to another because the particles of the medium are ____.
frictionless
isolated from one another
able to interact
very light

13. 12. In order for John to hear Jill, air molecules must move
12. In order for John to hear Jill, air molecules must move from the lips of Jill to the ears of John.
True
False

14. 13. In which of the following do transverse waves move fastest?
space
solids
water
air

15. In which medium do Sound waves move fastest?
Air
Water
Space
Solids

16. 15. Which type of object transmits light easily?
opaque
translucent
transparent
colored

17. 16. What is represented by this diagram?
a. reflection
b. refraction
c. wavelength
d. absorption

18. MS-PS3-1
17. What is represented by this diagram?
a. reflection
b. refraction
c. wavelength
d. absorption

19. 18. What do Electromagnetic waves transmit?
charges
fields
matter
energy

20. 19. An object is seen when light. reflected from an. object enters the
19. An object is seen when light reflected from an object enters the eye.
True
False

21. What do waves transfer?
matter
energy
particles
water

22. What do we call reflected sound waves?
Echoes
Noise
Rebounds
Reverberations

23. All sounds are created by vibrations or particle to particle transfer of energy.
True
False

24. 23. What is changed when you change the frequency of a sound wave?
pitch
amplitude
volume
color

25. What is a popular use for Microwaves?
cooking
scattering
diffraction
refraction

26. Which type of object transmits light easily?
opaque
translucent
transparent
colored

27. 26. What color of light will pass through this filter?
Red
Green
Blue
All

28. What part of the electromagnetic spectrum is visible to humans?
All parts
Infrared
Visible
Ultraviolet

29. Light is a type of what?
electromagnetic wave
electromagnetic spectrum
electromagnetic energy
horizontal wave

30. Which of these has the longest wavelength?
Blue light
Infrared radiation
Radio wave
X-ray

31. Which of these has the highest frequency?
Blue light
Infrared radiation
Radio wave
X-ray

32. MS: Waves and Information Transfer MS-PS4-3
What is NOT an example of a Digital Transmission?
A cell phone.
High Speed Internet
Cable TV
Sirius XM Radio
All of the above are examples

33. Which option below lists the type of signal denoted by
Which option below lists the type of signal denoted by binary 1s and 0s?
Analog
Digital
Static
Linear

34. Which of the following is NOT true for an Analog Wave?
An Analog signal has a continuous change in amplitude and frequency.
An Analog wave can carry much more information than a Digital wave.
A person’s voice or a dog barking are examples of Analog waves.
Analog wave transmission is more reliable than Digital.
Both b and d are not true about Analog Waves

35. Analog signal are created when information is translated
Analog signal are created when information is translated into electrical pulses of varying amplitude.
True
False

36. Which of the following is NOT true for a Digital Wave?
An Analog wave can carry much more information than a Digital wave.
Digital signals are used to make CD’s and MP3’s.
Digital signals are defined and consistent.
Digital signals are created from 0’s and 1’s.