wave
mechanical waves
longitudinal waves:
reflection, refraction
transverse, and longitudinal waves.
50

What is a wave?

wave is a disturbance that transfers energy from one place to another without transferring matter

50

What is a mechanical wave

A mechanical wave is a disturbance that transfers energy through a medium, such as a solid, liquid, or gas, by causing particles in the medium to vibrate

50

How are longitudinal waves different from transverse waves?

Longitudinal and transverse waves differ in the direction of particle movement relative to the wave's energy transfer

50
  • What happens to a light ray when it passes from a medium with a higher refractive index to one with a lower refractive index?
    • a) It bends toward the normal
    • b) It bends away from the normal
    • c) It continues straight without bending
    • d) It is completely absorbed

Answer: b) It bends away from the normal


50

In which type of wave do the particles of the medium move in a direction parallel to the direction of the wave's energy transfer?
A. Transverse wave
B. Longitudinal wave
C. Electromagnetic wave
D. Mechanical wave

B. Longitudinal wave

100

 what's a Longitudinal wave

Longitudinal Wave: A longitudinal wave has the movement of the particles in the medium in the same dimension as the direction of movement of the wave

100

What is the difference between a transverse and a longitudinal wave?


The main difference is the direction of particle motion relative to wave propagation: in a transverse wave, particles move perpendicularly

100

What are the two main types of regions that make up a longitudinal wave

The two main regions that make up a longitudinal wave are compressions and rarefactions

100

The Law of Reflection states that the angle of incidence is equal to what?

  • a) The angle of refraction
  • b) The angle of the reflected ray
  • c) The angle of the incident ray
  • d) The angle of the normal

b

100

Which of the following is an example of a transverse wave?
A. Sound waves in the air
B. Ripples on the surface of water
C. A wave on a slinky spring being pushed and pulled
D. Compression waves in a solid

 B. Ripples on the surface of water

200

What's a Transverse waves 

Transverse Waves. Transverse waves are waves similar to a parachute that moves up and down, resembling a sideway S shape. Each wave has a curved high point

200

Why does sound travel faster in steel than in air

Sound travels faster in steel than in air because steel is much stiffer, or has a higher elasticity, which allows vibrations to be transmitted much more efficiently than through the less-stiff, more-spread-out molecules of air

200

What is an example of a longitudinal wave that is not sound?


An example of a longitudinal wave that is not sound is a seismic P-wave, which is a compression wave generated by earthquakes

200

Why does a mirage appear on a hot road?

  • a) Reflection
  • b) Refraction of light due to temperature differences in the air
  • c) Diffraction of light
  • d) Interference of light

b

200

In a transverse wave, the particle displacement is ________ the direction of wave propagation.
A. Parallel to
B. Perpendicular to
C. At a 45-degree angle to
D. The same as

Answer: B. Perpendicular to

300

what's a Mechanical waves 

Mechanical waves require a medium to propagate. This implies that they must pass through some form of material. When molecules in the medium collide and

300

Which type of wave is a sound wave

A sound wave is a longitudinal wave and a mechanical wave. This means that as the wave travels, the particles of the medium (like air) vibrate back and forth parallel to the direction the wave is moving, and the wave requires a medium to travel through

300

How do sound waves travel from a source, like a person speaking, to another person's ear?

Sound travels from a source like a person speaking through a medium like air, which is made of air molecules. When a person speaks, their vocal cords vibrate, causing the surrounding air particles to collide and create pressure waves that move outward

300

Which color of light bends the most when passing through a prism?

  • a) Red
  • b) Orange
  • c) Yellow
  • d) Violet

d

300

Which of the following is a type of electromagnetic wave?
A. Seismic P-waves
B. A guitar string vibrating
C. Light waves
D. Sound waves

C. Light waves

400

Electromagnetic radiation

Electromagnetic waves classify waves of various wavelengths and frequencies based on their uses, wave qualities, and applications. Visible light, microwaves

400

which type of wave is a light wave

A light wave is an electromagnetic wave that is also a transverse wave

400

How are longitudinal waves used in medical and industrial settings

Longitudinal waves are used in medicine for imaging (ultrasound) and to break up kidney stones, while in industry they are used for non-destructive testing to check for flaws in materials, thickness measurement, and stress analysis

400

What is the primary reason that light refracts when it enters a new medium?

  • a) It loses energy
  • b) Its frequency changes
  • c) Its speed changes
  • d) Its wavelength decreases

c

400

Which statement best describes the difference between a longitudinal wave and a transverse wave?
A. Longitudinal waves transfer energy, while transverse waves do not.
B. Longitudinal waves require a medium, while transverse waves do not.
C. In a longitudinal wave, particles move parallel to the wave's motion; in a transverse wave, they move perpendicular to it.
D. A transverse wave has crests and troughs, while a longitudinal wave has peaks and valleys.

C. In a longitudinal wave, particles move parallel to the wave's motion; in a transverse wave, they move perpendicular to it.

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