PHYSICS AQA PROFESSIONAL SCIENCE
PREP QUESTIONS AND ACCURATE
ANSWERS GRADED A+
●● Force is a
Answer: vector quantity
●● What do vectors have
Answer: Direction and magnitude. Force, velocity, displacement,
acceleration, momentum
●● What do scalar have
Answer: Direction. Speed, distance, mass, temperature, time
●● A force can be a
Answer: push or a pull
●● When two objects have to be touching for a force to act,
Answer: that force is called a contact force.
●● If the objects do not need to be touching for the force to act,
Answer: the force is a non-contact force.
,●● Name some contact forces
Answer: Friction, air resistance
●● Name some non-contact forces
Answer: Magnetic, gravitational, electrostatic
●● What is weight?
Answer: The force acting on an object due to gravity.
●● Weight =
Answer: Mass (Kg) x Gravitational Field Strength (N/kg)
●● What is the resultant force?
Answer: It is the forces combined to show the result of the overall force.
●● When a force moves an object through a distance,
Answer: energy is transferred and work is done.
●● Work Done (J) =
Answer: Force (N)x Distance (m)
, ●● If forces acting on an object combine to give a resultant force of
zero:
Answer: the object is in equilibrium.
●● If a object is elastically deformed
Answer: it can go back to it's original shape and length after the force
has been removed.
●● An object has been inelastically deformed
Answer: if it doesn't return to it's original shape and length after the
force has been removed.
●● (For springs) Force (N) =
Answer: Spring constant x Extension
●● What is the spring constant?
Answer: How stiff the spring is, the stiffness depends on the material
used.
●● On a spring constant graph, what does a curve show?
Answer: It shows the extension is no longer proportional to force.
PREP QUESTIONS AND ACCURATE
ANSWERS GRADED A+
●● Force is a
Answer: vector quantity
●● What do vectors have
Answer: Direction and magnitude. Force, velocity, displacement,
acceleration, momentum
●● What do scalar have
Answer: Direction. Speed, distance, mass, temperature, time
●● A force can be a
Answer: push or a pull
●● When two objects have to be touching for a force to act,
Answer: that force is called a contact force.
●● If the objects do not need to be touching for the force to act,
Answer: the force is a non-contact force.
,●● Name some contact forces
Answer: Friction, air resistance
●● Name some non-contact forces
Answer: Magnetic, gravitational, electrostatic
●● What is weight?
Answer: The force acting on an object due to gravity.
●● Weight =
Answer: Mass (Kg) x Gravitational Field Strength (N/kg)
●● What is the resultant force?
Answer: It is the forces combined to show the result of the overall force.
●● When a force moves an object through a distance,
Answer: energy is transferred and work is done.
●● Work Done (J) =
Answer: Force (N)x Distance (m)
, ●● If forces acting on an object combine to give a resultant force of
zero:
Answer: the object is in equilibrium.
●● If a object is elastically deformed
Answer: it can go back to it's original shape and length after the force
has been removed.
●● An object has been inelastically deformed
Answer: if it doesn't return to it's original shape and length after the
force has been removed.
●● (For springs) Force (N) =
Answer: Spring constant x Extension
●● What is the spring constant?
Answer: How stiff the spring is, the stiffness depends on the material
used.
●● On a spring constant graph, what does a curve show?
Answer: It shows the extension is no longer proportional to force.
