CAIE A-Level Physics AS 2.1 Equations of Motion Questions

Practise selecting kinematics definitions, graphs and equations for motion, free fall, projectiles and experiments, checking uncertainty and feasibility.

Exam points

Represent motion with distance, displacement, speed, velocity and acceleration graphs, reading gradients, areas, signs and turning features.
Determine displacement from velocity–time area and velocity/acceleration from displacement–time or velocity–time gradients.
Derive and apply uniformly accelerated-motion equations, including sign conventions and vertical free fall.
Describe the free-fall experiment and control timing, distance, uncertainty and safety.
Resolve perpendicular uniform-velocity and uniform-acceleration components to analyse projectile-style paths.
Check motion results using units, initial conditions, roots and physical feasibility.

Covered syllabus points

2.1.1—Distance, displacement, speed, velocity and acceleration 2.1.2—Distance, displacement, speed, velocity and acceleration 2.1.3—Displacement from the area under a velocity–time graph 2.1.4—Velocity using the gradient of a displacement–time graph 2.1.5—Acceleration using the gradient of a velocity–time graph 2.1.6—Derive, from the definitions of velocity and acceleration, equations that 2.1.7—Equations that represent uniformly accelerated motion in a straight line 2.1.8—The acceleration of free fall using a falling object 2.1.9—Motion due to a uniform velocity in one direction and a uniform acceleration

[Maximum number: 1]

Which statement is not correct?

Acceleration can be determined from the gradient of a velocity-time graph.

Acceleration is the rate of change of velocity.

Displacement can be determined from the area under a velocity-time graph.

Velocity is the rate of change of distance.

[Maximum number: 1]

a time of 10 s and then walks back to the starting point at a constant speed in a time of 30 s .

What is the distance-time graph for the motion of the student?

Figure for Question 2 — CAIE A-Level Physics AS

Option A shown in diagram

Option B shown in diagram

Option C shown in diagram

Option D shown in diagram

[Maximum number: 1]

The diagram shows a velocity-time graph for an object moving in a straight line.

Figure for Question 3 — CAIE A-Level Physics AS

What is the displacement during the last 2 seconds of the motion?

6 m

12 m

18 m

$24 \mathrm{~m}$

[Maximum number: 1]

A displacement-time graph for a toy car is shown.

Figure for Question 4 — CAIE A-Level Physics AS

Which graph shows the variation with time of the velocity v of the car?

Figure for Question 4 — CAIE A-Level Physics AS — Option A

Figure for Question 4 — CAIE A-Level Physics AS — Option B

Figure for Question 4 — CAIE A-Level Physics AS — Option C

Figure for Question 4 — CAIE A-Level Physics AS — Option D

[Maximum number: 1]

A parachutist falls from a stationary balloon at time t=0. The velocity-time graph for the parachutist from time t=0 until the time when he is just above the ground is shown.

Figure for Question 5 — CAIE A-Level Physics AS

Which graph best shows the variation with time of the acceleration of the parachutist?

Figure for Question 5 — CAIE A-Level Physics AS — Option A

Figure for Question 5 — CAIE A-Level Physics AS — Option B

Figure for Question 5 — CAIE A-Level Physics AS — Option C

Figure for Question 5 — CAIE A-Level Physics AS — Option D

[Maximum number: 1]

Which equation, representing uniformly accelerated motion in a straight line, can be determined using only the definition of acceleration?

$s=u t+\frac{1}{2} a t^{2}$

$s=\frac{1}{2}(u+v) t$

v=u+a t

$v^{2}=u^{2}+2 a s$

[Maximum number: 1]

The diagram shows a laboratory experiment in which a feather falls from rest in a long evacuated vertical tube of length L.

Figure for Question 7 — CAIE A-Level Physics AS

The feather takes time T to fall from the top to the bottom of the tube.
How far does the feather fall from the top of the tube in time 0.50 T ?

0.13 L

0.25 L

0.38 L

0.50 L

[Maximum number: 1]

The diagram shows the path of a golf ball.

Figure for Question 8 — CAIE A-Level Physics AS

Which row describes changes in the horizontal and vertical components of the golf ball's velocity when air resistance is ignored?

horizontal

vertical

constant deceleration

constant acceleration downwards

constant deceleration

acceleration decreases upwards
then increases downwards

constant velocity

constant acceleration downwards

constant velocity

acceleration decreases upwards
then increases downwards

All question bank results loaded

Covered syllabus points

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8