Physics Paper 2 Flashcards
What statements are true for the magnetic field:
-the magnetic field is weaker the further away from the magnet
-the magnetic field is strongest at the poles
-the magnetic field lines point from north to south
-the magnetic field lines all meet at a single point
-magnetic field gets weaker away from the magnetic
-magnetic field is strongest at the poles
What type of object is the Sun?
A star
What describes the relationship between weight and mass?
Weight is directly proportional to mass
Explain the importance of the Ozone layer.
-Ozone absorbs nearly all the UVB
-UV damages skin cells
-can lead to skin cancer
-UV can damage eyes
What state is Most of the earths atmosphere?
-gas
Longitudinal waves are ____ to the direction of energy transfer
-parallel
Suggest two factors that affect the distance an electric car can travel before the battery needs to be recharged.
-speed
-mass
What type of wave is a water wave
Transverse
A bar magnet is an example of a ______
Permanent magnet
What are the ways to increase the magnetic field stronger
-get a stronger magnet
-move the magnet further away
What’s the life cycle of a star that becomes a black dwarf
Main sequence star —> red giant —> white dwarf —> black dwarf
What is a nebula?
Star that forms massive clouds of dust and gas in space also known as a nebula - mostly composed of hydrogen
-What force causes planets to orbit the sun
Gravitational
What two parts of the body electromagnetic spectrum are used for communication?
-micro waves
-radio waves
Give one possible harmful consequence of receiving a dose of x-ray radiation
-mutate DNA
