This document contains 2022 

AQA AS PHYSICS PAPER 2 2022 BUNDLE

Question Paper + Mark Scheme 2022

Section A box

Answer all questions in this section.

0 1 Figure 1 shows apparatus used to determine the acceleration g due to gravity by

a free-fall method.

Figure 1

When the switch is opened a timer starts and a steel ball is released from rest.

The ball falls vertically onto an impact switch and this stops the timer.

The timer displays the time t for the ball to fall through the vertical distance s shown

in Figure 1.

Question 1 continues on the next page

4

*04*

IB/M/Jun22/7407/2

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outside the

box A student obtains values of t for different values of s.

The student plots the graph of 2s against t

2 shown in Figure 2.

Figure 2

5

*05*

Turn over ►

IB/M/Jun22/7407/2

Do not write

outside the

0 1 box . 1 The student has used an absolute uncertainty in s to draw the vertical error bars

in Figure 2.

Deduce the student’s absolute uncertainty in s.

[1 mark]

absolute uncertainty in s = m

0 1 . 2 Determine

• the maximum gradient Gmax of a straight line that passes through all the error bars

• the minimum gradient Gmin of a straight line that passes through all the error bars.

[3 marks]

Gmax =

Gmin =

Question 1 continues on the next page

6

*06*

IB/M/Jun22/7407/2

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outside the

0 1 box . 3 It can be shown that 2s = gt2

.

Determine a value for g using Gmax and Gmin.

[2 marks]

g = m s−2

0 1 . 4 Determine the percentage uncertainty in your value for g.

[2 marks]

percentage uncertainty = %

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