A-Level PE - Linear Motion Questions
and Answers Already Passed
What is linear motion in the context of physical education?
✔✔Linear motion refers to the movement of a body along a straight line, either in a uniform or
non-uniform manner.
How is velocity different from speed in linear motion?
✔✔Velocity is a vector quantity that includes both speed and direction, while speed is a scalar
quantity that only measures how fast an object is moving.
What is the relationship between distance and displacement in linear motion?
✔✔Distance is the total path length traveled, whereas displacement refers to the straight-line
distance from the starting point to the endpoint, along with the direction.
What does acceleration represent in linear motion?
✔✔Acceleration is the rate of change of velocity over time, indicating how quickly an object is
speeding up or slowing down.
1
,How is force related to linear motion?
✔✔Force causes changes in the state of motion of an object, either by accelerating, decelerating,
or maintaining constant velocity.
What is Newton’s First Law of Motion, and how does it apply to linear motion?
✔✔Newton’s First Law states that an object will remain at rest or continue in uniform motion
unless acted upon by an external force, which governs the principle of inertia in linear motion.
How does the concept of inertia apply to linear motion?
✔✔Inertia is the tendency of an object to resist changes in its state of motion, meaning an object
will continue moving in a straight line unless a force acts upon it.
How does mass affect acceleration in linear motion?
✔✔According to Newton’s Second Law, the greater the mass of an object, the less it will
accelerate for a given amount of force.
What is the significance of momentum in linear motion?
✔✔Momentum is the product of an object's mass and velocity, representing the quantity of
motion it possesses, and is conserved in a closed system during linear motion.
2
, How can linear motion be affected by air resistance?
✔✔Air resistance opposes the motion of an object moving through the air, affecting its speed
and velocity, and can alter its linear motion, especially at high speeds.
What does it mean when an object reaches terminal velocity?
✔✔Terminal velocity occurs when the force of gravity is balanced by air resistance, causing the
object to stop accelerating and move at a constant velocity.
How does the principle of conservation of momentum apply to collisions in linear motion?
✔✔The total momentum of a system before and after a collision remains constant, provided no
external forces act on the system.
What is the effect of increasing velocity on the kinetic energy of an object in linear motion?
✔✔Kinetic energy increases with the square of velocity, meaning that a small increase in speed
results in a significantly larger increase in energy.
How does friction influence linear motion?
3
and Answers Already Passed
What is linear motion in the context of physical education?
✔✔Linear motion refers to the movement of a body along a straight line, either in a uniform or
non-uniform manner.
How is velocity different from speed in linear motion?
✔✔Velocity is a vector quantity that includes both speed and direction, while speed is a scalar
quantity that only measures how fast an object is moving.
What is the relationship between distance and displacement in linear motion?
✔✔Distance is the total path length traveled, whereas displacement refers to the straight-line
distance from the starting point to the endpoint, along with the direction.
What does acceleration represent in linear motion?
✔✔Acceleration is the rate of change of velocity over time, indicating how quickly an object is
speeding up or slowing down.
1
,How is force related to linear motion?
✔✔Force causes changes in the state of motion of an object, either by accelerating, decelerating,
or maintaining constant velocity.
What is Newton’s First Law of Motion, and how does it apply to linear motion?
✔✔Newton’s First Law states that an object will remain at rest or continue in uniform motion
unless acted upon by an external force, which governs the principle of inertia in linear motion.
How does the concept of inertia apply to linear motion?
✔✔Inertia is the tendency of an object to resist changes in its state of motion, meaning an object
will continue moving in a straight line unless a force acts upon it.
How does mass affect acceleration in linear motion?
✔✔According to Newton’s Second Law, the greater the mass of an object, the less it will
accelerate for a given amount of force.
What is the significance of momentum in linear motion?
✔✔Momentum is the product of an object's mass and velocity, representing the quantity of
motion it possesses, and is conserved in a closed system during linear motion.
2
, How can linear motion be affected by air resistance?
✔✔Air resistance opposes the motion of an object moving through the air, affecting its speed
and velocity, and can alter its linear motion, especially at high speeds.
What does it mean when an object reaches terminal velocity?
✔✔Terminal velocity occurs when the force of gravity is balanced by air resistance, causing the
object to stop accelerating and move at a constant velocity.
How does the principle of conservation of momentum apply to collisions in linear motion?
✔✔The total momentum of a system before and after a collision remains constant, provided no
external forces act on the system.
What is the effect of increasing velocity on the kinetic energy of an object in linear motion?
✔✔Kinetic energy increases with the square of velocity, meaning that a small increase in speed
results in a significantly larger increase in energy.
How does friction influence linear motion?
3
