ConceptConceptDocsDocuments

CAIE IGCSE Physics Motion Question Bank

Practise speed, velocity and acceleration calculations, interpreting distance-time and speed-time graphs and explaining free fall, drag and terminal velocity.

Syllabus
2026–2028
Course
Physics 0625

Exam points

  • rearrange speed and acceleration equations with consistent distance, time and velocity units
  • use graph gradient for speed or acceleration and area under a speed-time graph for distance
  • link changing drag and resultant force to decreasing acceleration and eventual terminal velocity

Covered syllabus points

1.2.1—Speed as distance travelled per unit1.2.2—Velocity as speed in a given direction1.2.3—Recall/use: average speed = total1.2.4—Distance–time and speed–time graphs1.2.5—From given data or the shape of a1.2.6—Speed from the gradient of a1.2.7—Area under a speed–time graph to1.2.8—Acceleration of free fall g for an1.2.9—Acceleration as change in velocity per1.2.10—From given data or the shape of a1.2.11—Acceleration from the gradient of a1.2.12—A deceleration is a negative1.2.13—Motion of objects falling in a uniform

1.2 Motion question 1

[Maximum number: 3]

Fig. 3.1 shows a model of a wind turbine used to demonstrate the use of wind energy to generate electricity. The wind is blowing towards the model, as shown.

Fig. 3.1

Fig. 3.1

The mass of air passing through the circular area swept out by the turbine blades each second is 7.5 kg . The kinetic energy of the air that passes through this circular area each second is 240 J .

Calculate the speed of the air.

speed =

1.2 Motion question 2

[Maximum number: 3]

Fig. 2.1 shows a motorcyclist accelerating along a straight horizontal section of track.

Fig. 2.1

Fig. 2.1

The motorcyclist and motorcycle have a combined mass of 240 kg .

Question (a)

(a)

On the straight horizontal section of the track, the motorcyclist accelerates from rest at 7.2 m/s27.2 \mathrm{~m} / \mathrm{s}^{2}.

[ 2 ]

Question (i)

(i)

The motorcyclist reaches the end of the straight section of track in 5.3 s .

Calculate the speed of the motorcyclist at the end of the straight section.
speed =

[ 2 ]

Question (b)

(b)

At the end of the straight section, the track remains horizontal but bends to the right, as shown in Fig. 2.1.

When the motorcyclist reaches the bend, she travels around the bend in a circular path at a constant speed.

[ 1 ]

Question (i)

(i)

Describe what happens to the velocity of the motorcyclist as she travels around the bend at constant speed.

[ 1 ]

1.2 Motion question 3

[Maximum number: 8]

Fig. 1.1 is the distance-time graph for a moving car.

Fig. 1.1

Fig. 1.1

Question (a)

(a)

On Fig. 1.1, mark a point P where the acceleration of the car is zero.

[ 1 ]

Question (b)

(b)

Determine:

[ 4 ]

Question (i)

(i)

the speed of the car at time t=15 st=15 \mathrm{~s}
speed = [2]

[ 2 ]

Question (ii)

(ii)

the average speed of the car between time t=30 st=30 \mathrm{~s} and time t=45 st=45 \mathrm{~s}.
average speed = [2]

[ 2 ]

Question (c)

(c)

At time t=45 st=45 \mathrm{~s}, the car starts to decelerate. At time t=55 st=55 \mathrm{~s} and at a distance of 400 m from the starting point, the car stops. It then remains stationary for 5.0 s .

On Fig. 1.1, draw a possible continuation of the distance-time graph.
[Total: 8]

[ 3 ]
All question bank results loaded