Sec1 Sci P7f Forces Core 24words
Terms in this set (25)
When two forces are the same strength, but working in opposite directions.
A force that needs to touch an object before it can affect it (e.g. friction).
The amount of mass that 1cm3 of a substance has. Measured in g/cm3.
Any substance that will return to its original shape and size after it has been stretched or squashed.
An object floats when the upthrust from water is equal to the downwards force of the object's weight
A push or a pull.
Piece of equipment containing a spring, used to measure forces.
A force that tries to slow things down when two things rub against each other.
A unit for measuring mass (g).
A unit for measuring mass (kg). There are 1000 g in 1 kg.
A non-contact force that attracts objects made out of iron.
The amount of matter that something is made of. Measured in grams (g) and kilograms (kg). Your mass does not change if you go into space or to another planet.
The unit of force (N).
Another name for a force meter.
A force that can affect something from a distance (e.g. gravity).
The single force equivalent to two or more forces acting on an object
A metal wire wound into spirals that can store elastic potential energy
A device for measuring forces, sometimes called a force meter or a newton meter
The extension when an elastic material such as a spring is pulled outwards or downwards
A stretching force
From an engine or rocket
When two forces working in opposite directions are not the same strength.
A force that pushes thing up.
The amount of force with which gravity pulls something towards the Earth. It is measured in newtons (N).
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