CSEC Physics Paper 2 January 2013 - Free CXC Past Paper with Answers

Complete Table 2 which shows physical quantities and the instruments used to measure them.

TABLE 2

A child, drops a stone as shown in Figure 1.

Figure 1

Identify the force which acts on the stone, causing it to fall.

Describe the change in motion of the stone as a result of this force.

Given that the mass of a cricket ball is 0.06 kg, calculate its weight in newtons.

[Acceleration due to gravity, $g = 10 \text{ m s}^{-2}$]

Figure 2 is a vector diagram representing a cricket ball's velocity, OA, and the wind's velocity, OB.

Figure 2

Draw and label a mercury laboratory thermometer, clearly indicating the fixed points.

Draw arrows in Table 3 from each thermometer to map it to its operating range.

TABLE 3

Figure 3 shows a scuba diver ascending from $20$ m below the surface where the water temperature is $10$ $^\circ$C, to the surface, where the temperature is $25$ $^\circ$C and the pressure is Pa.

Calculate the pressure the diver is subjected to at $20$ m below the surface of the water.

[Density of water = $1025$ kg m$^{-3}$] [Acceleration due to gravity, $g = 10$ m s$$]

By using the general gas law, determine, as a result of the rise, the ratio of the final volume to the initial volume of a bubble.

Describe EACH of the following terms it relates to the laws of reflection:

Normal

Angle of incidence

Angle of reflection

In the description of the formation of an image produced in a plane mirror, a physics student recalled THREE features. State the THREE features of an image produced in a plane mirror.

Using a relevant physics concept, explain why the word $\text{ЭƆИАЈUЯBMA}$ is painted in this manner at the front of some emergency vehicles.

Figure 4 shows a ray of white light, AO, incident at $30^\circ$ to the PS boundary of the rectangular glass block, PQRS.

Figure 4

(i) Calculate the angle of refraction produced on the PS boundary. (ii) Name the angle of refraction produced on the QR boundary. [Refractive Index of glass = $1.5$]

Calculate the angle of refraction produced on the PS boundary.

Name the angle of refraction produced on the QR boundary.

Describe a test to show that a semi-conductor diode is defective.

Sketch the I-V graph for a functioning semi-conductor diode.

Draw and complete a truth table for a 'NOT gate'.

Figure 5 shows three resistors of values $2\Omega$, $6\Omega$ and $12\Omega$ in series.

Calculate the equivalent resistance that one can use in series.

In a second scenario, $2\Omega$, $6\Omega$ and $12\Omega$ resistors are placed in parallel as seen in Figure 6. Calculate the equivalent resistance that one can use in parallel.

Last year for Christmas, Paula had to put together a set of bulbs to light her family's Christmas tree. After much thought, she decided to put together strings of bulbs in series. Was that a wise decision? Justify your answer.

Discuss the importance of alternative energy to the Caribbean with reference to two sources and their uses.

A football is kicked from rest looping over the head of a goalkeeper who is 40 m away.

Describe the energy changes taking place in the ball from when it was kicked to when it hit the ground behind the goalkeeper. (Assume no energy losses.)

After 1s, the ball of mass $m$ kg and velocity $v$ ms$^{-1}$ is located $h$ m from the ground.

Derive an expression in terms of $m$, $h$ and $v$ for the difference between the potential and the kinetic energy of the ball.

During a game, the ball of mass $0.43$ kg hit the head of one of the players of height $1.5$ m. The player was standing vertically. If the velocity of the ball at the point of contact with the player's head was $7$ m s$^{-1}$, what momentum was transferred to the player?

Acceleration due to gravity, $g = 10$ N kg