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