CRCR COMPREHENSIVE STUDY GUIDE
2026 FULL QUESTIONS AND
SOLUTIONS GRADED A+
◍ What is a scalar quantity?.
Answer: A quantity that has only magnitude
◍ What is a vector quantity?.
Answer: a quantity that has both magnitude and direction
◍ What kind of quantity is Distance.
Answer: Scalar
◍ What kind of quantity is Displacement.
Answer: Vector
◍ What kind of quantity is Speed.
Answer: Scalar
◍ What is Newton's first law?.
Answer: If The forces acting on an object are balanced, the resultant force
acting on an object is zero. This means that the object is either at rest or
moving at a constant speed.
◍ Newton's Second Law.
Answer: Force = Mass x Acceleration (F=ma)
◍ Newton's Third Law.
Answer: If object A exerts a force on object B, object B will exert an equal
and opposite force to Object A.
◍ What is Free Fall.
Answer: when the only force acting on an object is gravity. This means the
object accelerates toward earth at 9.8m/s²
,◍ What is terminal velocity.
Answer: As an object falls, its acceleration decreases as the air resistance
upwards increase, when the two forces are equal, you are at terminal
velocity and cease to accelerate.
◍ What is Inertia.
Answer: A measure of how difficult it is to change the object's velocity.
◍ What is Friction.
Answer: the force between two objects that opposes motion slowing the
movement down.
◍ What is Drag.
Answer: Most resistive forces are caused by drag. The most important factor
in reducing drag is keeping the object streamlined
◍ What is Breaking force.
Answer: The amount of force required to stop an object from moving.
◍ Factors effecting thinking distance.
Answer: Speed of car - faster slower timeDrugs and alcohol - slower
timeTiredness - slower timeMedication - slower time
◍ What is a typical Thinking time.
Answer: 0.2-0.9s
◍ Factors effecting braking distance.
Answer: Speed of car - Faster slower timeWet or icy roads - Slower
timeBald tires - slower timeWorn out breaks - slower time
◍ Different types of waves.
Answer: Transverse and longitudinal
◍ How do the waves in transverse waves oscillate.
Answer: The oscillations are perpendicular to the direction of energy
transfer
◍ How do the waves in Longitudinal waves oscillate.
, Answer: The oscillations are parallel to the direction of energy transfer
◍ Types of transverse waves.
Answer: - P Waves- Water waves- Light waves- All Em waves
◍ Types of Longitudinal waves.
Answer: - Ultrasound- S waves - Sound waves
◍ What are Mechanical waves.
Answer: Vibrations that travel through a medium. (sound, water waves on a
string or a rope)
◍ What is the Amplitude of a wave.
Answer: waves height from trough or peak of wave to the centre of a wave
◍ what is the Wavelength of a wave.
Answer: the distance between two like points of a wave (eg the distance
from peak to peak or trough to trough)
◍ What is the frequency of a wave?.
Answer: The number of complete oscillations that happen in one second
◍ frequency equation.
Answer: Wave speed = frequency x wavelength
◍ What is the period of a wave.
Answer: The time taken for a wave to pass a point
◍ Period of a wave equation.
Answer: period = 1/frequency
◍ What is the independent variable?.
Answer: What changes in the experiment
◍ What is the dependant variable in an experiment.
Answer: What we measure
◍ What is the control variable in an experiment.
Answer: The variable that we must keep the same in order to keep the test
fair
2026 FULL QUESTIONS AND
SOLUTIONS GRADED A+
◍ What is a scalar quantity?.
Answer: A quantity that has only magnitude
◍ What is a vector quantity?.
Answer: a quantity that has both magnitude and direction
◍ What kind of quantity is Distance.
Answer: Scalar
◍ What kind of quantity is Displacement.
Answer: Vector
◍ What kind of quantity is Speed.
Answer: Scalar
◍ What is Newton's first law?.
Answer: If The forces acting on an object are balanced, the resultant force
acting on an object is zero. This means that the object is either at rest or
moving at a constant speed.
◍ Newton's Second Law.
Answer: Force = Mass x Acceleration (F=ma)
◍ Newton's Third Law.
Answer: If object A exerts a force on object B, object B will exert an equal
and opposite force to Object A.
◍ What is Free Fall.
Answer: when the only force acting on an object is gravity. This means the
object accelerates toward earth at 9.8m/s²
,◍ What is terminal velocity.
Answer: As an object falls, its acceleration decreases as the air resistance
upwards increase, when the two forces are equal, you are at terminal
velocity and cease to accelerate.
◍ What is Inertia.
Answer: A measure of how difficult it is to change the object's velocity.
◍ What is Friction.
Answer: the force between two objects that opposes motion slowing the
movement down.
◍ What is Drag.
Answer: Most resistive forces are caused by drag. The most important factor
in reducing drag is keeping the object streamlined
◍ What is Breaking force.
Answer: The amount of force required to stop an object from moving.
◍ Factors effecting thinking distance.
Answer: Speed of car - faster slower timeDrugs and alcohol - slower
timeTiredness - slower timeMedication - slower time
◍ What is a typical Thinking time.
Answer: 0.2-0.9s
◍ Factors effecting braking distance.
Answer: Speed of car - Faster slower timeWet or icy roads - Slower
timeBald tires - slower timeWorn out breaks - slower time
◍ Different types of waves.
Answer: Transverse and longitudinal
◍ How do the waves in transverse waves oscillate.
Answer: The oscillations are perpendicular to the direction of energy
transfer
◍ How do the waves in Longitudinal waves oscillate.
, Answer: The oscillations are parallel to the direction of energy transfer
◍ Types of transverse waves.
Answer: - P Waves- Water waves- Light waves- All Em waves
◍ Types of Longitudinal waves.
Answer: - Ultrasound- S waves - Sound waves
◍ What are Mechanical waves.
Answer: Vibrations that travel through a medium. (sound, water waves on a
string or a rope)
◍ What is the Amplitude of a wave.
Answer: waves height from trough or peak of wave to the centre of a wave
◍ what is the Wavelength of a wave.
Answer: the distance between two like points of a wave (eg the distance
from peak to peak or trough to trough)
◍ What is the frequency of a wave?.
Answer: The number of complete oscillations that happen in one second
◍ frequency equation.
Answer: Wave speed = frequency x wavelength
◍ What is the period of a wave.
Answer: The time taken for a wave to pass a point
◍ Period of a wave equation.
Answer: period = 1/frequency
◍ What is the independent variable?.
Answer: What changes in the experiment
◍ What is the dependant variable in an experiment.
Answer: What we measure
◍ What is the control variable in an experiment.
Answer: The variable that we must keep the same in order to keep the test
fair
