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Forces
Force Interactions
Scalars, vectors and types of force: Forces: Physics: GCSE (9:1)
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Harry Parker
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Cards (12)
Scalar
quantity
A quantity that has a
magnitude
(
size
) only
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Examples of
scalar
quantities
Speed
,
temperature
,
mass
,
energy
,
distance
,
density
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Vector
quantity
A quantity that has a
magnitude
and an associated
direction
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Examples of vector quantities
Velocity
,
force
,
displacement
,
acceleration
,
momentum
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Representing vector quantities
Vector are represented by an
arrow
to indicate its
size
and
direction
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Contact
forces
Forces
that act between
two objects
that are
physically touching
each other
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Examples of contact forces
friction
,
air resistance
,
tension
,
normal contact
(
reaction
)
force
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Non-contact
forces
Forces that act between
two objects
that are
not physically touching
each other
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Examples of non-contact forces
gravitational
force,
electrostatic
force and
magnetic
force
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Resultant force
A
single
force that has the
same effect
as the
original forces
on an
object acting together
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Components of a force
A single force can be resolved into
two
components acting at
right angles
to each other and have the
same
effect as the single force
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Free body diagram
A diagram showing all the
forces
acting on an
object
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