Do not open this examination paper until instructed to do so. â¢ You are not permitted access to any ... Section B: answer one question. â¢ Use fully labelled diagrams and references to the text/data where appropriate. ... direct taxes and cutting
[Maximum mark: 7]. The following diagram shows three towns A, B and C. Town B is 5 km from Town A, on a bearing of 070Ë. Town C is 8 km from Town B, on a bearing of 115Ë. diagram not to scale. N. N. 5 ..... A factory has two machines, A and B. The
To investigate the thermal properties of water, students placed hot water in two thin plastic cups and measured their rate of cooling. The sides of one cup were covered with tissue paper soaked in hot water; the other cup was left uncovered. The temp
May 9, 2016 - (i) The data point corresponding to t = 15 s has not been plotted. Plot this point on the graph .... (b) After the experiment, the student finds that the travelling microscope is badly adjusted so that the .... the laboratory. (a) For t
May 9, 2016 - Aldebaran is a red giant star with a peak wavelength of 740 nm and a mass of. 1.7 solar masses. (a) Show that the surface temperature of ...
May 11, 2004 - A. It reduces the number of erythrocytes in the blood. B. It reduces the number of platelets in the blood. C. It increases the amount of plasma in the blood. D. It reduces the number of lymphocytes in the blood. 28. How do the followin
350. 11 k k. +. +. = 34. â k. (A1). (C4). = 4. [4 marks]. 3. â²f x( ) = â +. 2. 3 x. (M1). f x( ). 2. 2. 3. 2 x. x c. â. = +. +. Notes: Award (M1) for an attempt to integrate. Do not penalise the omission of c here. 1. (A1). 1 3 c. =â + + c.
Instructions to candidates. â¢ Do not open this examination paper until instructed to do so. â¢ A clean copy of the business and management case study is required for this examination paper. â¢ Read the case study carefully. â¢ Section A: answer
May 1, 2017 - Tom operates Anubis as a sole trader, selling cell/mobile phone cases on the internet. The market is increasingly competitive. The retail price of phone cases is predicted to fall in the second quarter of 2018. Employees at Anubis will
Physics Standard level Paper 3 Monday 9 May 2016 (morning)
Candidate session number
1 hour Instructions to candidates • • • • • • • •
Write your session number in the boxes above. Do not open this examination paper until instructed to do so. Section A: answer all questions. Section B: answer all of the questions from one of the options. Write your answers in the boxes provided. A calculator is required for this paper. A clean copy of the physics data booklet is required for this paper. The maximum mark for this examination paper is [35 marks]. Option
Section A Answer all questions. Write your answers in the boxes provided. 1.
A student investigates the oscillation of a horizontal rod hanging at the end of a vertical string. The diagram shows the view from above. vertical string
rod scale The student starts the rod oscillating and measures the largest displacement for each cycle of the oscillation on the scale and the time at which it occurs. The student begins to take measurements a few seconds after releasing the rod. The graph shows the variation of displacement x with time t since the release of the rod. The uncertainty for t is negligible.
18.0 16.0 14.0 12.0 x / cm
10.0 8.0 6.0 4.0 2.0 0.0
20 25 t/s
On the graph above, draw the line of best fit for the data.
(This question continues on the following page)
(Question 1 continued) (b)
Calculate the percentage uncertainty for the displacement when t = 40 s.
A student measures the refractive index of the glass of a microscope slide. He uses a travelling microscope to determine the position x1 of a mark on a sheet of paper. He then places the slide over the mark and finds the position x2 of the image of the mark when viewed through the slide. Finally, he uses the microscope to determine the position x3 of the top of the slide.
x3 x2 x1
image of mark mark
sheet of paper
The table shows the average results of a large number of repeated measurements. Average position of mark / mm
The refractive index of the glass from which the slide is made is given by
x3 − x1 . x3 − x2 Determine (i)
the refractive index of the glass to the correct number of significant figures, ignoring any uncertainty.
After correcting the adjustment of the travelling microscope, the student repeats the experiment using a glass block 10 times thicker than the original microscope slide. Explain the change, if any, to the calculated result for the refractive index and its uncertainty.
Two protons are moving with the same velocity in a particle accelerator. protons Observer X is at rest relative to the accelerator. Observer Y is at rest relative to the protons. Explain the nature of the force between the protons as observed by observer X and observer Y.
An observer on Earth watches a rocket A. The spacetime diagram shows part of the motion of A in the reference frame of the Earth observer. Three flashing light beacons, X, Y and Z, are used to guide rocket A. The flash events are shown on the spacetime diagram. The diagram shows the axes for the reference frames of Earth and of rocket A. The Earth observer is at the origin.
ct / km 3
X 0 0
x / km 1
(Option A continues on the following page)
– 11 –
(Option A, question 6 continued) (a)
For the reference frame of the Earth observer, calculate the speed of rocket A in terms of the speed of light c.
A block of ice is placed on the slope beside the solid cylinder and both are released at the same time. The block of ice is the same mass as the solid cylinder and slides without friction. At any given point on the slope, the speed of the block of ice is greater than the speed of the solid cylinder. Outline why, using the answer to (b)(i).