Free CXC Physics Paper 2 January 2016 past paper from 2016. Includes a worked answer key. Open the PDF, take a timed test, and study with AI on Caribbean AI.
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CSEC Physics Paper 2 January 2016 - Free CXC Past Paper with Answers
Free CXC Physics Paper 2 January 2016 past paper from 2016. Includes a worked answer key. Open the PDF, take a timed test, and study with AI on Caribbean AI.
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Every question from this paper as text. See the answers and worked solutions. Questions are the property of the Caribbean Examinations Council; Caribbean AI is not affiliated with CXC.
A motorcar travelled from rest and its velocity over an 80-second period was measured. The results are shown in Table 1.
| Velocity, (m s) | 0 | 30 | 30 | 0 |
|---|---|---|---|---|
| Time, (s) |
| 0 |
| 20 |
| 40 |
| 60 |
| Point | A | B | C | D |
[25 marks]
On the grid provided on page 5, plot the graph of velocity against time.
[7 marks]
Use the graph to determine EACH of the following:
[14 marks]
The acceleration during the interval AB
[4 marks]
The velocity of the motorcar after 70 seconds (with the aid of dotted lines)
[1 mark]
The total distance travelled over the 80 second period
[9 marks]
From your graph, describe the velocity of the vehicle over the period BC.
[1 mark]
This question investigated how velocity varied with time. Define the term 'velocity'.
[3 marks]
Complete the graphic below by drawing an arrow from each physical quantity to its respective unit.
Density Momentum
N m N s kg m
[2 marks]
Complete the following statements.
[7 marks]
Kinetic energy is defined as
[1 mark]
The potential energy of a body is defined as
[1 mark]
The formula for the change in gravitational potential energy is
[1 mark]
Waterfalls are commonly found across the Caribbean. Describe the energy changes taking place in a waterfall.
[2 marks]
A pendulum swings from A through B to C and returns to A as seen in Figure 1.
A and C are the furthest points with B being the midpoint.
State the type of energy that exists at
[6 marks]
Table 2 shows the type of thermometer, design feature and the reason for the design feature. Complete the table by inserting the appropriate information.
TABLE 2
| Type of Thermometer | Design Feature | Reason For Design Feature |
|---|---|---|
| Mercury-in-glass laboratory thermometer | Narrow bore | |
| Constriction in bore | Retaining a measured temperature | |
| Thermocouple | Ability to measure rapidly changing temperatures |
[3 marks]
A
[1 mark]
B
[1 mark]
C
[1 mark]
Another point D, is situated midway between A and B.
If the pendulum is returning to A to complete an oscillation, explain why type of energy is increasing and why.
At D, the type of energy increasing is
Reason:
[2 marks]
Define the upper and lower fixed points on the Celsius temperature scale and state their respective values on that scale.
[4 marks]
Figure 2 shows a sealed flask which contains a fixed mass of gas held at constant volume.
When heated, the temperature and pressure of the gas increase as shown in Table 3.
TABLE 3
| Pressure (Pa) | Temperature (C) | Temperature (K) |
|---|---|---|
| 35 | ||
Complete Table 3 by converting the temperatures to Kelvin.
[3 marks]
Is the 'Pressure Law' supported by this set of data? Explain.
[5 marks]
Netball is a popular sport played across the Caribbean. If a netball has a mass of 0.4 kg and a velocity of 5 m , calculate its kinetic energy.
[3 marks]
SECTION B
Answer ALL questions.
You MUST write your answers in this answer booklet.
"The angle of incidence is equal to the angle of reflection". State the other law.
"The angle of incidence is equal to the angle of reflection". State the other law.
[3 marks]
State THREE properties of the image in a plane mirror.
[3 marks]
Figure 3 shows a car located 5 m behind a truck which is 8 m long. Assume the external mirror for the truck is a plane mirror and is in line with the front of the truck.
Calculate the image distance of the car as seen by the truck driver.
[2 marks]
State a reason why the sign shown in Figure 4 is more likely to be posted at the back of a truck rather than a car.
<image description="Figure 4 shows a diamond-shaped sign with the text 'IF YOU CAN'T SEE MY MIRRORS, I CAN'T SEE YOU.'">[2 marks]
A ray of light passes through a block of material as shown in Figure 5.
<image description="Figure 5 shows a ray of light passing through a block of material. The angle of incidence is 30 degrees.">
[5 marks]
If the refractive index of the material is 1.3, calculate the angle of refraction in the material given that the angle of incidence is .
[4 marks]
If the refractive index of the material increased, why would the lateral displacement of the ray increase also?
[1 mark]
A converging lens can be used to form real or virtual images.
[6 marks]
With reference to the focal length of the lens, describe the object distance required to produce EACH type of image.
[2 marks]
State the orientation of EACH image so produced.
[2 marks]
Complete the ray diagram shown in Figure 6.
<image description="Figure 6 shows a converging lens with its principal axis and focal points F. A ray diagram needs to be completed.">
[2 marks]
Calculate the magnification where a lens produces an image height of 3.6 mm for an object 2.4 mm in height.
[3 marks]
For the same magnification, calculate the image distance given that the object distance is 20 cm.
[3 marks]
Calculate the focal length of this lens.
[3 marks]
Scientists use symbols when dealing with circuit diagrams in electricity. An electric circuit is displayed in Figure 7.
Write a description of this circuit in the space provided.
[6 marks]
A Physics class was given a circuit diagram as shown in Figure 8. Use Figure 8 to answer the three questions posed to the class.
Given that the formula for the equivalent resistance of two resistors and in parallel is , calculate the equivalent resistance across BC.
[2 marks]
Calculate the current flowing in the closed circuit.
[4 marks]
When the current in (b) (ii) flows, what is the power dissipated in the resistor?
[3 marks]
| 63 |
| 91 |
