Measuring the Features of Waves
What is wavelength?
The distance between two successive crests or troughs of a wave.
What is the equation that relates wave speed, frequency, and wavelength
v = f × λ
What is an electromagnetic wave?
A type of this wave that does not require a medium to travel.
Define conduction
The method of energy transfer that requires particles to collide with each other.
Which is the largest country in the world by land area
Russia
What is frequency?
The number of complete waves that pass a point in one second.
In the equation v = f × λ what unit must the wavelength be in to calculate speed in m/s?
Metres
What are radio, microwave, infrared, visible, ultraviolet, X-rays, gamma rays?
The types of electromagnetic waves in order of increasing frequency, starting with radio waves.
Define convection
The type of energy transfer involves movement of fluids due to differences in temperature and density.
Which ancient civilization built Machu Picchu in the Andes Mountains.
the Inca Empire
What is the speed of a wave with a wavelength of 2 m and a frequency of 5 Hz.
10 m/s
A sound wave travels at 340 m/s. Its frequency is 170 Hz. Calculate its wavelength.
2 metres
Which colour of visible light has the shortest wavelength?
Violet
Because particles in solids are packed closer together
What is the long-running science fiction series features an alien called the Doctor who travels in a time machine called the TARDIS
Doctor Who
What is Hertz (Hz)?
The unit of measurement for wave frequency
A wave has a speed of 150 m/s and a wavelength of 0.5 m. Find the frequency.
300Hz
Which part of the electromagnetic spectrum is used in night vision and thermal imaging
Infrared
In diagrams of convection currents, arrows are used to represent what aspect?
the direction of fluid movement caused by heating and cooling
Which American artist released the album “Folklore” in 2020
Taylor Swift
What happens to a wave if the speed remains constant, increasing the wavelength will do what to the frequency?
Decrease it
A water wave travels 45 m in 3 seconds. If the frequency is 3 Hz, what is the wavelength?
5 Metres
What are the differences between red light and ultraviolet light?
Ultraviolet light has more energy and shorter wavelength
What is the difference between dark and matte surfaces and shiny or light coloured surfaces when it comes to radiation.
Dark and matte surfaces are better at absorbing and re-emitting radiation and shiny or light coloured surfaces are better at reflecting and transmitting.
Which wall, built in 1961 and torn down in 1989, symbolized the division between East and West during the Cold War
the Berlin Wall