forces and fields word list

Questão	Responda
force	a push, pull or twist
acceleration	the rate at which an object changes velocity
mass	is the amount of matter in an object
lightning	the release of static charge in the sky
weight	the force with which an object is attracted to earth and is equal to the product of the object's mass and the acceleration due to gravity
spring balance	an instrument used to measure weight or force by how far a spring moves
domain	a region in a ferromagnetic material (iron, nickel and cobalt) that aligns with the magnetic field
satellite	a celestial body (like the moon) or artificial object that orbits the a planet
field	an area that can exert a force on an object
contact force	a force required to be in direct contact with an object to cause a push, pull or a twist
non-contact force	a force applied to an object by another body that is not in direct contact with it
electrostatic	relating to stationary electric charges or field
magnet	produces a magnetic field which attracts metallic objects composed of iron, cobalt or nickel
compass	an instrument consisting of a freely rotating magnetised needle that indicates magnetic north
newton	the unit for force
friction	a contact force that opposes motion and produces heat
electromagnet	a type of magnet created by electricity
gravity	a force of attraction that moves bodies towards the centre of a celestial body, such as earth or moon

Resumo de Recurso

	Criado por Oliver Dowzer quase 8 anos atrás