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Science 7

QuestionAnswer
balanced forces When two forces are the same strength, but working in opposite directions
elastic Any substance that will return to its original shape and size after it has been stretched or squashed
gram A unit for measuring mass (g)
gravity The force of attraction between any two objects
kilogram A unit for measuring mass (kg)
mass The amount of matter that something is made of
newton The unit of force (N)
stationary Not moving
unbalanced forces When two forces working in opposite directions are not the same strength
weight The amount of force with which gravity pulls something towards the Earth. It is measured in newtons.
air resistance A force that tries to slow things down that are moving through the air. It is a type of friction.
friction A force that tries to slow things down when two things rub against each other
lubricant A substance (normally a liquid) used to reduce friction
lubrication Adding a lubricant to something
water resistance A force that tries to slow things down that are moving through water. It is a type of friction.
Created by: tescommonstacks