AQA GCSE COMBINED SCIENCE TRILOGY
HIGHER TIER CHEMISTRY PAPER 2H 3
QUESTIONS AND ANSWERS
◉ Examples of vector quantities. Answer: force, velocity, momentum,
acceleration
◉ Scalar quantities. Answer: Only have magnitude and no direction
◉ Examples of scalar quantities. Answer: speed, distance, time
◉ Vectors. Answer: represented by an arrow - the length of the
arrow shows the magnitude. The direction of the arrow shows the
direction of the quantity
◉ A force is. Answer: a push or pull on an object that is caused by it
interacting with something
◉ when two objects are touching for the force to act, its a .....
Answer: contact force
◉ examples of contact forces. Answer: friction, air resistance,
tension in ropes. etc
,◉ If the objects do not need to be touching for the force to act, the
force is a ....... Answer: non contact force
◉ examples of non contact forces. Answer: magnetic force and
gravitational force
◉ Two effects of gravity. Answer: - makes all things fall towards the
ground
- gives everything a weight
◉ What is mass?. Answer: The amount of material an object is made
of
It is the same value everywhere
Measured using a mass balance
◉ What is weight?. Answer: The force acting on an object due to
gravity
It depends on the strength of the gravitational field at the location of
the object
Measured using a calibrated spring balance - newtonmeter
◉ Equation for Weight. Answer: Weight (N) = Mass (kg) x
Gravitational Field Strength (N/kg)
, W=mg
◉ What is weight directly proportional to?. Answer: mass
◉ What are free body diagrams?. Answer: Diagrams that show all
the forces acting on an object
◉ What is the resultant force?. Answer: The single force that
replaces multiple forces acting at a single point
◉ How is work done?. Answer: When a force moves an object
through a distance, energy is transferred and work is done on the
object
◉ Equation for 'Work Done'. Answer: Work done (J) = Force (N) x
Distance (m)
W=Fs
◉ What is 1J equal to?. Answer: 1Nm
◉ If all the forces acting on an object combine to give a resultant
force of zero then the object is in ?. Answer: equilibrium
HIGHER TIER CHEMISTRY PAPER 2H 3
QUESTIONS AND ANSWERS
◉ Examples of vector quantities. Answer: force, velocity, momentum,
acceleration
◉ Scalar quantities. Answer: Only have magnitude and no direction
◉ Examples of scalar quantities. Answer: speed, distance, time
◉ Vectors. Answer: represented by an arrow - the length of the
arrow shows the magnitude. The direction of the arrow shows the
direction of the quantity
◉ A force is. Answer: a push or pull on an object that is caused by it
interacting with something
◉ when two objects are touching for the force to act, its a .....
Answer: contact force
◉ examples of contact forces. Answer: friction, air resistance,
tension in ropes. etc
,◉ If the objects do not need to be touching for the force to act, the
force is a ....... Answer: non contact force
◉ examples of non contact forces. Answer: magnetic force and
gravitational force
◉ Two effects of gravity. Answer: - makes all things fall towards the
ground
- gives everything a weight
◉ What is mass?. Answer: The amount of material an object is made
of
It is the same value everywhere
Measured using a mass balance
◉ What is weight?. Answer: The force acting on an object due to
gravity
It depends on the strength of the gravitational field at the location of
the object
Measured using a calibrated spring balance - newtonmeter
◉ Equation for Weight. Answer: Weight (N) = Mass (kg) x
Gravitational Field Strength (N/kg)
, W=mg
◉ What is weight directly proportional to?. Answer: mass
◉ What are free body diagrams?. Answer: Diagrams that show all
the forces acting on an object
◉ What is the resultant force?. Answer: The single force that
replaces multiple forces acting at a single point
◉ How is work done?. Answer: When a force moves an object
through a distance, energy is transferred and work is done on the
object
◉ Equation for 'Work Done'. Answer: Work done (J) = Force (N) x
Distance (m)
W=Fs
◉ What is 1J equal to?. Answer: 1Nm
◉ If all the forces acting on an object combine to give a resultant
force of zero then the object is in ?. Answer: equilibrium
