AQA Waves (exc EM spectrum)

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Name the two basic types of waves
- Transverse
- Longitudinal
Is this wave transverse or longitudinal?

Transverse
Is this wave transverse or longitudinal?

Longitudinal
Do ripples on water form a transverse or longitudinal wave?

Transverse
Do sound waves travel as longitudinal or transverse waves?

Longitudinal
Which type of wave oscillates parallel to the direction of travel?

Longitudinal
Which type of wave oscillates perpendicular to the direction of travel?

Transverse
What do all waves transfer, and what do they not transfer
- They transfer energy,
- without transferring matter
What are the regions in a longitudinal wave called?
- Compressions
- Rarefactions
What do the following letters represent?
- A: Crest (or peak)
- B: Trough
- C: Amplitude
- D: Wavelength
What wave quantity is defined as:
"The number of waves passing a point each second"

Frequency
What is the unit of wavelength?

metre
What is the unit of frequency?

Hertz (Hz)
What is the equation linking wave speed, frequency and wavelength?
Which of the following quantities is not changed when a wave moves from one medium to another?
a) wavelength
b) speed
c) frequency

Frequency
Higher tier only
What is the range of normal human hearing?

20 Hz to 20 kHz
Higher tier only
What are seismic waves?

Waves in the ground causes by earthquakes
Higher tier only
Which type of seismic wave can only travel through solids?

S-wave
Higher tier only
Which type of seismic wave is transverse?

S-wave
Higher tier only
Which type of seismic wave travels at different speeds in solids and liquids?

P-wave
Do light waves travel as longitudinal or transverse waves?
- Transverse
- (All electromagnetic waves are transverse)
Higher tier only
Describe how ultrasound waves are used to measure distance
- A transducer emits ultrasound waves,
- these are (partially) reflected from a media boundary
- the transducer detects the reflected waves
- the total distance travelled is calculated as s = v x t
- the distance to the media is half of the total distance travelled (as it went there and back)
Higher tier only
What is echo sounding used for in water?

Detect objects in deep water and measure water depth.