What type of wave travels at right angles to the energy transfer?
Transverse
Longitudinal
Sound

What type of waves are light and the other forms of electromagnetic radiation?
Longitudinal
P waves
Transverse

What type of wave has areas of rarefaction and compression?
Transverse
Light
Longitudinal

What are the two types of seismic wave?
S and T waves
P and S waves
T and L waves

What layer is below the crust?
The mantle
The atmosphere
The outer core

What part of the Earth is made from nickel and iron?
The crust
The core
The mantle

Which type of seismic wave can travel through solids only?
S wave
P wave
S and P wave

What happens to S waves when they reach the boundaries of the Earth's structure?
The reflect only
They reflect and refract
They refract only

What is the centre of an earthquake called?
Triangulation
Seismometer
Epicentre

Which type of seismic wave travels the fastest?
They travel at the same speed
S waves
P waves