Ps Unit 7 Test

22 Questions | By MrMackRH | Updated: Mar 21, 2022 | Attempts: 114

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1.

____ are used for medical imaging.
- A.
  
  Gamma rays
- B.
  
  Infrared waves
- C.
  
  X-rays
- D.
  
  Radio waves
2.

An ocean wave has a frequency of 2.5 Hz with a wavelength of 10 m. What is the velocity of the wave?
- A.
  
  25 m/s
- B.
  
  .25 m/s
- C.
  
  4 m/s
- D.
  
  .25 m
3.

Energy (in scientific terms) is defined as ______________.
- A.
  
  Moving an object a certain distance
- B.
  
  The force exerted on an object
- C.
  
  The ability to do work
- D.
  
  The side effect of drinking a red bull
4.

The highest pitch humans can hear has a wavelength of 0.02 m in air and a speed of 340 m/s. What is the frequency of this sound wave?
- A.
  
  17000 Hz
- B.
  
  6.8 HZ
- C.
  
  .000588 Hz
- D.
  
  170 Hz
5.

Using figure 7.1, what is the highest point on the wave called?
- A.
  
  Crest
- B.
  
  Trough
- C.
  
  Rarefaction
- D.
  
  Compression
6.

The electromagnetic waves interacting with the water molecules in your food to make it hot are ____.
- A.
  
  Microwaves
- B.
  
  X-rays
- C.
  
  Gamma rays
- D.
  
  Ultraviolet rays
7.

What type of wave is shown in figure 7.1?
- A.
  
  Longitudinal
- B.
  
  Compressional
- C.
  
  Transverse
- D.
  
  Tsunami
8.

Using figure 7.1, what is the minimum point on the wave called?
- A.
  
  Crest
- B.
  
  Trough
- C.
  
  Rarefaction
- D.
  
  Compression
9.

A circuit that has two or more separate loops for the current go through is a ____.
- A.
  
  Parallel circuit
- B.
  
  Series circuit
- C.
  
  Circuit diagram
- D.
  
  Electron circuit
10.

The electromagnetic waves with wavelengths slightly longer than visible light are ____.
- A.
  
  X-rays
- B.
  
  Microwaves
- C.
  
  Infrared waves
- D.
  
  Radio waves
11.

A wave has a speed of 250 m/s and frequency of 25 Hz. What is the wavelength?
- A.
  
  10.0 m
- B.
  
  10.0 Hz
- C.
  
  .10 m
- D.
  
  .10 Hz
12.

For a given wave, if the frequency increases, the wavelength ____.
- A.
  
  Increases
- B.
  
  Decreases
- C.
  
  Stays the same
- D.
  
  Does not exist
13.

The electromagnetic waves that come from the sun and tanning beds (which can cause skin cancer) are ____.
- A.
  
  Radio waves
- B.
  
  Microwaves
- C.
  
  Infrared waves
- D.
  
  Ultraviolet rays
14.

Electromagnetic waves ____.
- A.
  
  Are compressional waves
- B.
  
  Are transverse waves
- C.
  
  Must have a medium
- D.
  
  Are generated by static electricity
15.

Electromagnetic radiation with the shortest wavelengths is ____.
- A.
  
  Gamma rays
- B.
  
  Visible light
- C.
  
  Radio waves
- D.
  
  Infrared waves
16.

Sound travels faster in ____ than in water.
- A.
  
  Air
- B.
  
  Steel
- C.
  
  Cork
- D.
  
  Water vapor
17.

The unit used to measure frequency is the ____.
- A.
  
  Newton
- B.
  
  Joule
- C.
  
  Decibel
- D.
  
  Hertz
18.

Waves in which the particles of the medium move only perpendicular to the motion of the wave are ____ waves.
- A.
  
  Transverse
- B.
  
  Compressional
- C.
  
  Uniform
- D.
  
  Light
19.

Electromagnetic radiation with the longest wavelengths is ____.
- A.
  
  Gamma rays
- B.
  
  Visible light
- C.
  
  Radio waves
- D.
  
  Infrared waves
20.

Wave A carries more energy than wave B. Wave B has a smaller ____ than wave A.
- A.
  
  Frequency
- B.
  
  Wavelength
- C.
  
  Speed
- D.
  
  Amplitude
21.

A wave will travel only as long as it has ____ to carry.
- A.
  
  Energy
- B.
  
  Mass
- C.
  
  Amplitude
- D.
  
  Matter
22.

Waves in which the particles of the medium move only in the same direction as the motion of the wave are ____ waves.
- A.
  
  Transverse
- B.
  
  Compressional
- C.
  
  Uniform
- D.
  
  Light