AQA PHYSICS - PAPER 2 EXAM | VERIFIED ANSWERS 100% |2025
What is a contact force? - ✔✔A force where the objects are physically touching
Give 4 examples of contact forces - ✔✔- friction
- air resistance
- tension
- normal contact force (weight)
What is a non-contact force? - ✔✔A force where the objects are not physically touching
Give 3 examples of non-contact forces - ✔✔- gravitational
- magnetic
- electrostatic
What does a scalar quantity have? - ✔✔Magnitude but not direction
What does a vector quantity have? - ✔✔Both magnitude and direction
What is a free body diagram? - ✔✔A diagram that shows all the forces acting on an
object
What does the size of the arrows mean in a free body diagram? - ✔✔The bigger the
arrow, the greater than force
What is elastic deformation? - ✔✔When an object returns to its original shape
What is inelastic deformation? - ✔✔When an object does not return to its original shape
What is extension? - ✔✔The increase in length of a spring when stretched
How do you calculate extension? - ✔✔New length - old length = exstension
How does the extension of a spring increase? - ✔✔Extension increases proportionally
to the force applied
What is meant by spring constant? - ✔✔The newtons needed to stretch an object by 1
metre
What is the formula that links force, spring constant, and extension? - ✔✔- force =
spring constant x extension
- F = Ke
, What does the size of the spring constant mean? - ✔✔The higher the spring constant,
the stiffer the object
What is Hooke's Law? - ✔✔The force needed to stretch or compress a spring is directly
proportional to its extension
What is acceleration? - ✔✔The rate of change in velocity
What is on each axis of a distance-time graph? - ✔✔- x-axis = time
- y-axis = distance
What does a flat line mean on a distance-time graph? - ✔✔The object is stationary
What does a straight diagonal line mean on a distance-time graph? - ✔✔The object is
travelling at a constant speed
What does a curved line mean on a distance-time graph? - ✔✔The object is
accelerating or decelerating
What is on each axis of a velocity-time graph? - ✔✔- x-axis = time
- y-axis = velocity
What does a flat line mean on a velocity-time graph? - ✔✔The object is travelling at a
constant velocity
What does a straight diagonal line mean on a velocity-time graph? - ✔✔The object is
accelerating or decelerating
What does a curved line mean on a velocity-time graph? - ✔✔The object's rate of
acceleration is increasing or decreasing
How is the total distance calculated on a velocity-time graph? - ✔✔The total area under
the graph
What is meant by terminal velocity? - ✔✔When an object is falling at a constant speed
(when the resultant force is 0)
What is Newton's First Law of Motion also known as? - ✔✔Law of Inertia
What is Newton's First Law of Motion? - ✔✔An object at rest stays at rest, and an object
in motion stays in motion with the same speed and direction unless acted upon by an
external force.
What is a contact force? - ✔✔A force where the objects are physically touching
Give 4 examples of contact forces - ✔✔- friction
- air resistance
- tension
- normal contact force (weight)
What is a non-contact force? - ✔✔A force where the objects are not physically touching
Give 3 examples of non-contact forces - ✔✔- gravitational
- magnetic
- electrostatic
What does a scalar quantity have? - ✔✔Magnitude but not direction
What does a vector quantity have? - ✔✔Both magnitude and direction
What is a free body diagram? - ✔✔A diagram that shows all the forces acting on an
object
What does the size of the arrows mean in a free body diagram? - ✔✔The bigger the
arrow, the greater than force
What is elastic deformation? - ✔✔When an object returns to its original shape
What is inelastic deformation? - ✔✔When an object does not return to its original shape
What is extension? - ✔✔The increase in length of a spring when stretched
How do you calculate extension? - ✔✔New length - old length = exstension
How does the extension of a spring increase? - ✔✔Extension increases proportionally
to the force applied
What is meant by spring constant? - ✔✔The newtons needed to stretch an object by 1
metre
What is the formula that links force, spring constant, and extension? - ✔✔- force =
spring constant x extension
- F = Ke
, What does the size of the spring constant mean? - ✔✔The higher the spring constant,
the stiffer the object
What is Hooke's Law? - ✔✔The force needed to stretch or compress a spring is directly
proportional to its extension
What is acceleration? - ✔✔The rate of change in velocity
What is on each axis of a distance-time graph? - ✔✔- x-axis = time
- y-axis = distance
What does a flat line mean on a distance-time graph? - ✔✔The object is stationary
What does a straight diagonal line mean on a distance-time graph? - ✔✔The object is
travelling at a constant speed
What does a curved line mean on a distance-time graph? - ✔✔The object is
accelerating or decelerating
What is on each axis of a velocity-time graph? - ✔✔- x-axis = time
- y-axis = velocity
What does a flat line mean on a velocity-time graph? - ✔✔The object is travelling at a
constant velocity
What does a straight diagonal line mean on a velocity-time graph? - ✔✔The object is
accelerating or decelerating
What does a curved line mean on a velocity-time graph? - ✔✔The object's rate of
acceleration is increasing or decreasing
How is the total distance calculated on a velocity-time graph? - ✔✔The total area under
the graph
What is meant by terminal velocity? - ✔✔When an object is falling at a constant speed
(when the resultant force is 0)
What is Newton's First Law of Motion also known as? - ✔✔Law of Inertia
What is Newton's First Law of Motion? - ✔✔An object at rest stays at rest, and an object
in motion stays in motion with the same speed and direction unless acted upon by an
external force.
