INSTRUCTIONS
• Use black ink. You can use an HB pencil, but only for graphs and diagrams.
• Write your answer to each question in the space provided. If you need extra space use
the lined pages at the end of this booklet. The question numbers must be clearly shown.
• Answer all the questions.
• Where appropriate, your answer should be supported with working. Marks might be
given for using a correct method, even if your answer is wrong.
INFORMATION
• The total mark for this paper is 95.
• The marks for each question are shown in brackets [ ].
• Quality of extended response will be assessed in questions marked with an asterisk(*).
• This document has 24 pages.
ADVICE
• Read each question carefully before you start your answer.
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1 Alex uses scalar and vector quantities to describe a journey through their school.
, 2
(a) Which statement describes a vector quantity?
Tick (✓) one box.
It has both magnitude and direction
It has direction only
It has magnitude only
[1]
(b) Complete the table to show which quantities are scalar and which are vector.
Tick (✓) one box in each row.
Quantity Scalar Vector
Distance
Speed
Velocity
(c) A distance–time graph of Alex’s journey is shown.
D E
Distance
B C
A
Time
Between points A and B Alex is walking at constant speed.
(i) Describe Alex’s motion between points B and C.
........................................................................................................................................
..................
........................................................................................................................................
............. [1]
(ii) Describe how Alex’s motion between points C and D is different to their motion
between points A and B.
........................................................................................................................................
..................
........................................................................................................................................
............. [1]
2 A student is researching the structure of different atoms.
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, 3
(a) Complete the sentences to describe the parts of an atom.
Put a ring around each correct option.
The nucleus of the atom has a negative / neutral / positive charge.
The nucleus is surrounded by negatively charged particles
called electrons / neutrons / protons.
The diameter of the nucleus is about a hundredth / hundred-thousandth / millionth
of the diameter of the atom.
(b) The table shows information about four different nuclei.
Nucleus Number of protons Number of neutrons
P 3 3
Q 2 2
R 3 4
S 4 3
A proton has a charge of +1.
A neutron has a charge of 0.
(i) Which nucleus has the largest charge?
........................................................................................................................................
............. [1]
(ii) Which two nuclei are isotopes of the same element?
......................................................................
and ....................................................................... [1]
3 Riley and Sam are investigating the speeds of water waves and sound waves.
(a) Fig. 3.1 represents a water wave.
Fig. 3.1
X
Displacement
Distance
Y
Draw lines to connect each description of the water wave with its correct feature.
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, 4
Description Feature
Amplitude
Arrow X on Fig. 3.1
Frequency
Arrow Y on Fig 3.1
Period
The number of
waves passing a point
each second
Wavelength
[3] (b) Fig. 3.2 shows Riley and Sam standing 50 m from a tall, flat wall.
They are doing an experiment to measure the speed of sound in air.
Fig. 3.2
50 m
Sam blows a whistle and Riley starts a timer at the
same time. Riley stops the timer when she hears the
echo from the wall.
(i) When Riley stops the timer, it shows a time of 0.40 seconds.
Calculate the speed of sound in air using this result.
(2 × distance to wall)
uation: speed = time
Speed = .................................................. m / s
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