P1.1 Flashcards
What is the wavelength of a wave?
The distance between both crests.
Is a sound wave transverse or longitudinal?
Transverse.
Is an electromagnetic wave longitudinal or transverse?
Longitudinal.
What type of waves cause earthquakes?
Seismic waves.
Frequency is measured in hertz..
How do you work out how many metres per second a wave travels using hertz?
M/s = Hz/m
What is the model of the solar system with the sun as the centre called?
The heliocentric model.
What is the model of the solar system with the Earth as the centre called?
The Geocentric model.
What did Galileo notice about Jupiter?
It had four moons orbiting around it.
Why was the heliocentric model not accepted as first?
The Church did not agree with it
What does refraction of light mean?
The beam is changing direction.
What is focal length?
The distance between the focal points of lenses.
What is an object in orbit?
An object traveling around a celestial body.
Does an object ever break from its orbit on its own accord?
No
What is frequency of a wave?
How many times it passes a certain point per second.
