Questions Paper 2 - A-Level Maths

Find an expression for $\frac { \mathrm { d } y } { \mathrm {~d} x }$
4
The point $P$ with coordinates $( 4,10 )$ lies on the curve.
Find an equation of the tangent to the curve at the point $P$
□
4
Show that the curve has no stationary points.

AQA Paper 2 2023 June Q5

5 Ziad is training to become a long-distance swimmer. He trains every day by swimming lengths at his local pool.
The length of the pool is 25 metres.
Each day he increases the number of lengths that he swims by four.
On his first day of training, Ziad swims 10 lengths of the pool.
5

Write down an expression for the number of lengths Ziad will swim on his $n$th day of training. 5
1. Ziad's target is to be able to swim at least 3000 metres in one day.
  Determine the minimum number of days he will need to train to reach his target.
  5
(ii) Ziad's coach claims that when he reaches his target he will have covered a total distance of over 50000 metres. Determine if Ziad's coach is correct.

AQA Paper 2 2023 June Q6

1 marks

6 Victoria, a market researcher, believes the average weekly value, $\pounds V$ million, of online grocery sales in the UK has grown exponentially since 2009. Victoria models the incomplete data, shown in the table, using the formula $$V = a \times b ^ { N }$$ where $N$ is the number of years since 2009 and $a$ and $b$ are constants.

Victoria wishes to determine the values of $a$ and $b$ in her formula.
To do this she plots a graph of $\log _ { 10 } V$ against $N$ and then draws a line of best fit as shown in the diagram below.
\includegraphics[max width=\textwidth, alt={}, center]{de8a7d38-a665-4feb-854e-ac83f413d133-08_757_1040_1169_589} The equation of Victoria's line of best fit is $$\log _ { 10 } V = 0.057 N + 1.76$$ 6
1. Use the equation of Victoria's line of best fit to show that, correct to three significant figures, $a = 57.5$
  [0pt] [1 mark]
  6
(ii) Use the equation of Victoria's line of best fit to find the value of $b$
Give your answer to three significant figures. 6
According to Victoria's model, state the yearly percentage increase in the average weekly value of online grocery sales. 6
1. Use Victoria's model to predict the average weekly value of online grocery sales in 2025.
  6
(ii) Explain why the prediction made in part (c)(i) may be unreliable.

AQA Paper 2 2023 June Q7

7 The functions f and g are defined by $$\begin{aligned} & \mathrm { f } ( x ) = \sqrt { 10 - 2 x } \text { for } \quad x \leq 5
& \mathrm {~g} ( x ) = \frac { 1 } { x } \quad \text { for } \quad x \neq 0 \end{aligned}$$ The function $h$ has maximum possible domain and is defined by $$\mathrm { h } ( x ) = \operatorname { gf } ( x )$$ 7

Find an expression for $\mathrm { h } ( x )$
7
Find the domain of h
7
Show that $\mathrm { h } ^ { - 1 } ( x ) = 5 - \frac { 1 } { 2 x ^ { 2 } }$
\includegraphics[max width=\textwidth, alt={}, center]{de8a7d38-a665-4feb-854e-ac83f413d133-11_2488_1716_219_153}

AQA Paper 2 2023 June Q8

Given that $\cos \theta \neq \pm 1$, prove the identity $$\frac { 1 } { 1 - \cos \theta } + \frac { 1 } { 1 + \cos \theta } \equiv 2 \operatorname { cosec } ^ { 2 } \theta$$ 8
Hence, find the set of values of $A$ for which the equation $$\frac { 1 } { 1 - \cos \theta } + \frac { 1 } { 1 + \cos \theta } = A$$ has real solutions.
Fully justify your answer.
8
Given that $\theta$ is obtuse and $$\frac { 1 } { 1 - \cos \theta } + \frac { 1 } { 1 + \cos \theta } = 16$$ find the exact value of $\cot \theta$

AQA Paper 2 2023 June Q9

1 marks

Find the first three terms, in ascending powers of $x$, of the binomial expansion of $$( 1 + x ) ^ { - \frac { 1 } { 2 } }$$ 9
A student substitutes $x = 2$ into the expansion of $( 1 + x ) ^ { - \frac { 1 } { 2 } }$ to find an approximation for $\frac { 1 } { \sqrt { 3 } }$ Explain the mistake in the student's approach.
[0pt] [1 mark] 9
By substituting $x = - \frac { 1 } { 4 }$ in your expansion for $( 1 + x ) ^ { - \frac { 1 } { 2 } }$ find an approximation for $\frac { 1 } { \sqrt { 3 } }$ Give your answer to three significant figures.

AQA Paper 2 2023 June Q10

10
\end{tabular} & Do not write outside the box
\hline \end{tabular} \end{center} 10
Given that $a$ and $b$ are distinct positive numbers, use proof by contradiction to prove that $$\frac { a } { b } + \frac { b } { a } > 2$$ \section*{END OF SECTION A
TURN OVER FOR SECTION B}

AQA Paper 2 2023 June Q11

11 A decoration is hanging freely from a fixed point on a ceiling.
The decoration has a mass of 0.2 kilograms.
The decoration is hanging by a light, inextensible wire.
The wire is 0.1 metres long.
Find the tension in the wire. Circle your answer.
0.02 N
0.02 g N
0.2 N
0.2 g N

AQA Paper 2 2023 June Q12

12 A particle moves in a straight line.
After the first 4 seconds of its motion, the displacement of the particle from its initial position is 0 metres. One of the graphs on the opposite page shows the velocity $v \mathrm {~ms} ^ { - 1 }$ of the particle after time $t$ seconds of its motion. Identify the correct graph.
Tick ( $\checkmark$ ) one box.
\includegraphics[max width=\textwidth, alt={}, center]{de8a7d38-a665-4feb-854e-ac83f413d133-19_2249_896_260_484}

AQA Paper 2 2023 June Q13

2 marks

13 A ball falls freely towards the Earth.
The ball passes through two different fixed points $M$ and $N$ before reaching the Earth's surface. At $M$ the ball has velocity $u \mathrm {~ms} ^ { - 1 }$
At $N$ the ball has velocity $3 u \mathrm {~m} \mathrm {~s} ^ { - 1 }$
It can be assumed that:

the motion is due to gravitational force only
the acceleration due to gravity remains constant throughout.

Show that the time taken for the ball to travel from $M$ to $N$ is $\frac { 2 u } { g }$ seconds.
[0pt] [2 marks] 13
Point $M$ is $h$ metres above the Earth. Show that $h > \frac { 4 u ^ { 2 } } { g }$
Fully justify your answer.
The car is moving in a straight line.
The acceleration $a \mathrm {~m} \mathrm {~s} ^ { - 2 }$ of the car at time $t$ seconds is given by $$a = 3 k t ^ { 2 } - 2 k t + 1$$ where $k$ is a constant.
When $t = 3$ the car has a velocity of $10 \mathrm {~m} \mathrm {~s} ^ { - 1 }$
Show that $k = \frac { 1 } { 3 }$

AQA Paper 2 2023 June Q14

14 A car has an initial velocity of $1 \mathrm {~ms} ^ { - 1 }$ A particle, $Q$, moves in a straight line across a rough horizontal surface.
A horizontal driving force of magnitude $D$ newtons acts on $Q$
$Q$ moves with a constant acceleration of $0.91 \mathrm {~ms} ^ { - 2 }$
$Q$ has a weight of 0.65 N
The only resistance force acting on $Q$ is due to friction.
The coefficient of friction between $Q$ and the surface is 0.4 Find $D$

AQA Paper 2 2023 June Q15

15 In this question use $g = 9.8 \mathrm {~ms} ^ { - 2 }$ In this question use $g = 9.8 \mathrm {~m} \mathrm {~s} ^ { - 2 }$

AQA Paper 2 2023 June Q16

16 A particle moves under the action of two forces, $\mathbf { F } _ { 1 }$ and $\mathbf { F } _ { 2 }$ It is given that $$\begin{aligned} & \mathbf { F } _ { 1 } = ( 1.6 \mathbf { i } - 5 \mathbf { j } ) \mathrm { N }
& \mathbf { F } _ { 2 } = ( k \mathbf { i } + 5 k \mathbf { j } ) \mathrm { N } \end{aligned}$$ where $k$ is a constant.
The acceleration of the particle is $( 3.2 \mathbf { i } + 12 \mathbf { j } ) \mathrm { m } \mathrm { s } ^ { - 2 }$
Find $k$
\includegraphics[max width=\textwidth, alt={}, center]{de8a7d38-a665-4feb-854e-ac83f413d133-25_2488_1716_219_153}

AQA Paper 2 2023 June Q17

17 A uniform plank $P Q$, of length 7 metres, lies horizontally at rest, in equilibrium, on two fixed supports at points $X$ and $Y$ The distance $P X$ is 1.4 metres and the distance $Q Y$ is 2 metres as shown in the diagram below.
\includegraphics[max width=\textwidth, alt={}, center]{de8a7d38-a665-4feb-854e-ac83f413d133-26_56_689_534_762}
\includegraphics[max width=\textwidth, alt={}, center]{de8a7d38-a665-4feb-854e-ac83f413d133-26_225_830_607_694} 17

The reaction force on the plank at $X$ is $4 g$ newtons.
17
1. Show that the mass of the plank is 9.6 kilograms.
  17
(ii) Find the reaction force, in terms of $g$, on the plank at $Y$
17
The support at $Y$ is moved so that the distance $Q Y = 1.4$ metres. The plank remains horizontally at rest in equilibrium.
It is claimed that the reaction force at $Y$ remains unchanged.
Explain, with a reason, whether this claim is correct.

AQA Paper 2 2023 June Q18

18 In this question $\mathbf { i }$ and $\mathbf { j }$ are perpendicular unit vectors representing due east and due north respectively. A particle, $T$, is moving on a plane at a constant speed.
The path followed by $T$ makes the exact shape of a triangle $A B C$.
$T$ moves around $A B C$ in an anticlockwise direction as shown in the diagram below.
\includegraphics[max width=\textwidth, alt={}, center]{de8a7d38-a665-4feb-854e-ac83f413d133-28_447_366_671_925} On its journey from $A$ to $B$ the velocity vector of $T$ is $( 3 \mathbf { i } + \sqrt { 3 } \mathbf { j } ) \mathrm { m } \mathrm { s } ^ { - 1 }$
18

Find the speed of $T$ as it moves from $A$ to $B$ 18
On its journey from $B$ to $C$ the velocity vector of $T$ is $( - 3 \mathbf { i } + \sqrt { 3 } \mathbf { j } ) \mathrm { m } \mathrm { s } ^ { - 1 }$ Show that the acute angle $A B C = 60 ^ { \circ }$
18
It is given that $A B C$ is an equilateral triangle.
$T$ returns to its initial position after 9 seconds.
Vertex $B$ lies at position vector $\left[ \begin{array} { l } 1
0 \end{array} \right]$ metres with respect to a fixed origin $O$
Find the position vector of $C$

AQA Paper 2 2023 June Q19

19 A wooden toy comprises a train engine and a trailer connected to each other by a light, inextensible rod. The train engine has a mass of 1.5 kilograms.
The trailer has a mass 0.7 kilograms.
A string inclined at an angle of $40 ^ { \circ }$ above the horizontal is attached to the front of the train engine. The tension in the string is 2 newtons.
As a result the toy moves forward, from rest, in a straight line along a horizontal surface with acceleration $0.06 \mathrm {~ms} ^ { - 2 }$ as shown in the diagram below.
\includegraphics[max width=\textwidth, alt={}, center]{de8a7d38-a665-4feb-854e-ac83f413d133-30_373_789_904_756} As it moves the train engine experiences a total resistance force of 0.8 N
19

Show that the total resistance force experienced by the trailer is approximately 0.6 N
19
At the instant that the toy reaches a speed of $0.5 \mathrm {~m} \mathrm {~s} ^ { - 1 }$ the string breaks. As a result of this the train engine and trailer decelerate at a constant rate until they come to rest, having travelled a distance of $h$ metres. It can be assumed that the resistance forces remain unchanged.
19
1. Find the tension in the rod after the string has broken.
  
  19
  (ii) Find $h$
  Do not write outside the box
  
  \includegraphics[max width=\textwidth, alt={}]{de8a7d38-a665-4feb-854e-ac83f413d133-33_2488_1716_219_153}
  Nell and her pet dog Maia are visiting the beach.
  The beach surface can be assumed to be level and horizontal. Nell and Maia are initially standing next to each other.
  Nell throws a ball forward, from a height of 1.8 metres above the surface of the beach, at an angle of $60 ^ { \circ }$ above the horizontal with a speed of $14 \mathrm {~m} \mathrm {~s} ^ { - 1 }$ Exactly 0.2 seconds after the ball is thrown, Maia sets off from Nell and runs across the surface of the beach, in a straight line with a constant acceleration $a \mathrm {~m} \mathrm {~s} ^ { - 2 }$ Maia catches the ball when it is 0.3 metres above ground level as shown in the diagram below.
  \includegraphics[max width=\textwidth, alt={}, center]{de8a7d38-a665-4feb-854e-ac83f413d133-34_778_1287_1027_463}

AQA Paper 2 2023 June Q20

20 In this question use $g = 9.8 \mathrm {~m \mathrm {~s} ^ { - 2 }$} Find $a$

\includegraphics[max width=\textwidth, alt={}]{de8a7d38-a665-4feb-854e-ac83f413d133-36_2488_1719_219_150}

AQA Paper 2 2024 June Q1

1 One of the equations below is the equation of a circle. Identify this equation. Tick ( ✓ ) one box.
$( x + 1 ) ^ { 2 } - ( y + 2 ) ^ { 2 } = - 36$ □
$( x + 1 ) ^ { 2 } - ( y + 2 ) ^ { 2 } = 36$ □
$( x + 1 ) ^ { 2 } + ( y + 2 ) ^ { 2 } = - 36$ □
$( x + 1 ) ^ { 2 } + ( y + 2 ) ^ { 2 } = 36$ □

AQA Paper 2 2024 June Q2

2
The graph of $y = \mathrm { f } ( x )$ intersects the $x$-axis at ( $- 3,0$ ), ( 0,0 ) and ( 2,0 ) as shown in the diagram below.
\includegraphics[max width=\textwidth, alt={}, center]{28ee1134-b938-4c8f-b4ef-f3f9b210fdef-03_634_885_415_644} The shaded region $A$ has an area of 189 The shaded region $B$ has an area of 64
Find the value of $\int _ { - 3 } ^ { 2 } \mathrm { f } ( x ) \mathrm { d } x$
Circle your answer.
-253
-125
125
253

AQA Paper 2 2024 June Q5

5 Given that
find $\frac { \mathrm { d } y } { \mathrm {~d} x }$ $$y = \frac { x ^ { 3 } } { \sin x }$$

AQA Paper 2 2024 June Q6

6 It is given that $$( 2 \sin \theta + 3 \cos \theta ) ^ { 2 } + ( 6 \sin \theta - \cos \theta ) ^ { 2 } = 30$$ and that $\theta$ is obtuse. Find the exact value of $\sin \theta$. Fully justify your answer.

AQA Paper 2 2024 June Q7

7 On the first day of each month, Kate pays $\pounds 50$ into a savings account. Interest is paid on the total amount in the account on the last day of each month.
The interest rate is 0.2\% At the end of the $n$th month, the total amount of money in Kate's savings account is $\pounds T _ { n }$ Kate correctly calculates $T _ { 1 }$ and $T _ { 2 }$ as shown below: $$\begin{aligned} T _ { 1 } & = 50 \times 1.002 = 50.10
T _ { 2 } & = \left( T _ { 1 } + 50 \right) \times 1.002
& = ( ( 50 \times 1.002 ) + 50 ) \times 1.002
& = 50 \times 1.002 ^ { 2 } + 50 \times 1.002
& \approx 100.30 \end{aligned}$$ 7

Show that $T _ { 3 }$ is given by $$T _ { 3 } = 50 \times 1.002 ^ { 3 } + 50 \times 1.002 ^ { 2 } + 50 \times 1.002$$ 7
Kate uses her method to correctly calculate how much money she can expect to have in her savings account at the end of 10 years. 7
1. Find the amount of money Kate expects to have in her savings account at the end of 10 years.
  7
(ii) The amount of money in Kate's savings account at the end of 10 years may not be the amount she has correctly calculated. Explain why.

AQA Paper 2 2024 June Q8

2 marks

8 A zookeeper models the median mass of infant monkeys born at their zoo, up to the age of 2 years, by the formula $$y = a + b \log _ { 10 } x$$ where $y$ is the median mass in kilograms, $x$ is age in months and $a$ and $b$ are constants. The zookeeper uses the data shown below to determine the values of $a$ and $b$.

Age in months $( x )$	3	24
Median mass $( y )$	6.4	12

The zookeeper uses the data for monkeys aged 3 months to write the correct equation $$6.4 = a + b \log _ { 10 } 3$$ 8
1. Use the data for monkeys aged 24 months to write a second equation.
  8
(ii) Show that $$b = \frac { 5.6 } { \log _ { 10 } 8 }$$ 8
(iii) Find the value of $a$.
Give your answer to two decimal places.
\section*{Question 8 continues on the next question} 8
Use a suitable value for $x$ to determine whether the model can be used to predict the median mass of monkeys less than one week old.
[0pt] [2 marks]
\includegraphics[max width=\textwidth, alt={}, center]{28ee1134-b938-4c8f-b4ef-f3f9b210fdef-13_2491_1757_173_121}

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