AQA GCSE Physics -Paper 2 Final Exam 2025
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Terms in this set (280)
Which quantities have Scalar
magnitude or size only?
What are the properties They have magnitude and an associated direction
of vector quantities?
How can you represent a With an arrow where the length of the arrow
vector quantity using a represents the magnitude, and the direction of the
symbol? arrow the direction of the vector quantity
A push or pull that acts on an object due the
What is a force?
interaction of another object
A force that acts between two objects that are
What is a contact force?
physically touching each other
Name four contact forces Friction, air resistance, tension and normal
When a contact force acts between two objects,
What is Newton's Third
both objects experience the same size force, but in
Law of motion?
opposite directions
What is a non-contact Non-contact forces are forces that act between two
force? objects that are not physically touching each other
Name three non-contact Gravitational force, electrostatic force and magnetic
forces force
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What is weight? The force acting on an object due to gravity
What does the weight of The gravitational field strength at the point where
an object depend on? the object is
What is the equation that Weight = mass x gravitational field strength if
links weight, mass and [W=mg]
gravitational field
strength?
What is the relationship The more mass an object has the greater its
between the mass of an gravitational field
object and its
gravitational field?
What is the unit of Newtons per kg [N/kg]
gravitational field
strength?
What is the unit of Newtons (N)
weight?
What is the unit of mass? Kilograms (kg)
What is the 'centre of A single point in an object where the weight may be
mass' of an object? considered to act
How do you measure Using a calibrated spring-balance (a newtonmeter)
weight?
What's the relationship They are directly proportional
between the weight and
the mass of an object?
A single force that replaces a number of forces
What is a resultant force? acting on an object that has the same effect as all of
the original forces acting together
When does a force do When the force causes a displacement of the object
work on an object?
What is the equation that work done = force × distance [W=Fs]
links work done, force
and distance?
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What is the unit of work Joules (J)
done?
When is one joule of When a force of one newton causes a displacement
work done? of one metre; 1 joule = 1 newton-metre
When work is done An increase in temperature of the object
against the frictional
forces acting on an
object what does it
cause?
What must be acting to More than one force
change the shape of a
stationary object?
What is deformation? A change in shape
What is elastic When the force is removed the deformation is
deformation? reversed
What is inelastic When the force is removed the deformation is not
deformation? fully reversed; the change in shape is permanent
When does extension When an object increases in length
happen in an object?
When does compression When an object decreases in length
happen in an object?
What is the equation, Force = spring constant x extension [F=ke]
spring constant and
extension?
What is the unit for force? Newton (N)
What is the unit of the Newton per metre (N/m)
spring constant?
What is the unit of Meters (m)
extension?
What is the relationship They are directly proportional provided that the limit
between the extension of of proportionality is not exceeded
an elastic object and the
force applied?
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