Download GCSE Physics Higher Tier Paper 2H Specimen 2018: Exam Questions and Answers and more High school final essays Physics in PDF only on Docsity!
SPECIMEN MATERIAL
GCSE
PHYSICS
Higher Tier Paper 2H
Specimen 2018 Time allowed: 1 hour 45 minutes
Materials
For this paper you must have: a ruler a calculator a protractor the Physics Equation sheet (enclosed).
Instructions
Answer all questions in the spaces provided. Do all rough work in this book. Cross through any work you do not want to be marked.
Information
There are 100 marks available on this paper. The marks for questions are shown in brackets. You are expected to use a calculator where appropriate. You are reminded of the need for good English and clear presentation in your answers. When answering questions 04.2, 05.1, 11.3 and 12.2 you need to make sure that your answer: ‒ is clear, logical, sensibly structured ‒ fully meets the requirements of the question ‒ shows that each separate point or step supports the overall answer.
Advice
In all calculations, show clearly how you work out your answer.
H
Please write clearly, in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
A student suspended a spring from a laboratory stand and then hung a weight from the spring.
Figure 1 shows the spring before and after the weight is added.
Figure 1
Measure the extension of the spring shown in Figure 1. [1 mark]
Extension = mm
0 1.^1
The student measured the extension of the spring using a range of weights.
The student’s data is shown plotted as a graph in Figure 3.
Figure 3
What range of weight did the student use? [1 mark]
Why does the data plotted in Figure 3 support the student’s prediction? [1 mark]
Describe one technique that you could have used to improve the accuracy of the measurements taken by the student. [2 marks]
0 1.^3
0 1.^4
Turn over
The student continued the investigation by increasing the range of weights added to the spring.
All of the data is shown plotted as a graph in Figure 4.
Figure 4
At the end of the investigation, all of the weights were removed from the spring.
What can you conclude from Figure 4 about the deformation of the spring? [2 marks]
Give the reason for your conclusion.
0 1.^6
Turn over
The observations made by Hubble support the idea that the Universe is expanding. This means that galaxies are continually moving away from each other and from the Earth.
Figure 6 shows a student using a balloon to model the idea of an expanding Universe.
Some dots, which represent galaxies, were marked on the balloon. The balloon was then inflated.
Figure 6
Give one strength and one weakness of this model in representing the idea of an expanding Universe. [2 marks]
strength
weakness
0 2.^3
In the 1950s there were two main theories to explain how the Universe began.
The Universe has always existed, it is continually expanding. New galaxies are formed as older galaxies die out.
The Universe began from a very small region that was extremely hot and dense. The Universe has been expanding ever since.
In what way do the observations made by Hubble support both Theory 1 and Theory 2? [1 mark]
Most scientists now believe that Theory 2 is correct.
Suggest what is likely to have caused scientists to start thinking Theory 1 is wrong. [1 mark]
0 2.^5
Theory 1
Theory 2
The data recorded by the student is given in Table 1.
Table 1
Distance between the object and the lens in cm
Magnification
It would be difficult to obtain accurate magnification values for distances greater than 60 cm.
Suggest one change that could be made so that accurate magnification values could be obtained for distances greater than 60 cm. [1 mark]
Turn over
The graph in Figure 8 is incomplete.
Figure 8
Complete the graph in Figure 8 by plotting the missing data and then drawing a line of best fit. [2 marks]
How many times bigger is the image when the object is 35cm from the lens compared to when the object is 55 cm from the lens? [2 marks]
Question 3 continues on the next page
0 3.^3
Turn over
Complete the ray diagram in Figure 9 to show how the convex lens produces the image of a close object.
Use an arrow to represent the image. [3 marks]
Figure 9
Turn over for the next question
0 3.^6
Figure 10 shows a straight wire passing through a piece of card.
A current (I) is passing down through the wire.
Figure 10
Describe how you could show that a magnetic field has been produced around the wire. [2 marks]
0 4.^1
The data given in Table 3 was obtained from an investigation into the refraction of light at an air to glass boundary.
Table 3
Angle of incidence
Angle of refraction 20° 13°
30° 19°
40° 25°
50° 30°
Describe an investigation a student could complete in order to obtain similar data to that given in Table 3.
Your answer should consider any cause of inaccuracy in the data.
A labelled diagram may be drawn as part of your answer. [6 marks]
Turn over
State the reason why light is refracted as it crosses from air into glass. [1 mark]
Turn over for the next question
Turn over
A student makes three simple transformers, J, K and L.
Figure 13 shows how the potential difference across the secondary coil of each transformer varies as the potential difference across the primary coil of each transformer is changed.
Figure 13
How can you tell that transformer J is a step-down transformer?
[1 mark]
Each of the transformers has 50 turns on the primary coil.
Calculate the number of turns on the secondary coil of transformer L.
Use the correct equation from the Physics Equations Sheet. [3 marks]
Number of turns on the secondary coil =
0 6.^2
0 6.^3
In 2011, some of the scientists working at the CERN particle laboratory published the results of experiments they had conducted over the previous three years.
The scientists said that the results had shown that a particle, called a neutrino, was able to travel faster than the speed of light.
These unexpected results challenged the physics theory that nothing can travel faster than the speed of light.
Suggest why most other scientists thought that the experimental results were unbelievable. [1 mark]
The scientists at CERN believed their results were correct but could not explain them.
Suggest two reasons why the scientists decided to publish their results. [2 marks]
1
The experiments conducted by the scientists involved measuring the time it took neutrinos to travel from CERN to another laboratory 730 000 m away.
Using the data, the speed of the neutrinos was calculated to be 300 007 400 m/s.
Calculate the time it would take the neutrinos to travel 730 000 m at a speed of 300 007 400 m/s.
Give your answer in standard form. [3 marks]
Time = s
0 7.^1
0 7.^3
