CSEC Physics Paper 1 January 2006 - Free CXC Past Paper with Answers

The number 6.34 x 10<sup>-4</sup> may also be written as

Which of the following units is used to measure kinetic energy?

Which of the following is NOT a fundamental physical quantity?

Which of the following has NO units?

Which of the following diagrams illustrates the correct method of reading the liquid level?

The diagram above indicates a vernier caliper measurement of

During which time interval is his velocity constant?

Between 0 and 20 secs

Between 20 and 30 secs

Between 30 and 40 secs

Between 0 and 40 secs

In which of the following is the quantity correctly paired with its unit?

Moment of force / Newton per metre

Energy / Newton-metre

Work done / Newton per metre

A single force, which can replace and have the same effect as two or more forces acting together, is known as the

Which of the following statements about the object is/are true? I. It returns to its starting point. II. It has zero acceleration between times $t_2$ and $t_3$ . III. Its velocity at $t_4$ is the same as its initial velocity.

Which of the following could be used to find the speed of an object?

Change in velocity / Time taken

Change in displacement / Time taken

Distance travelled / Time taken

Distance travelled x Time taken

A falling raindrop reaches a constant speed when

there is no net force acting on it

the pull of the earth on the raindrop is equal to the weight of the raindrop

the upthrust due to the air is at a minimum

the air surrounding the raindrop becomes saturated with water vapour

A communications satellite is orbiting Earth, E. Which of the following diagrams correctly shows the resultant force, F, on it?

When two bodies collide, momentum is conserved. This means that the

kinetic energy before impact is equal to that after impact

momentum of each body is unchanged

algebraic sum of the velocities before impact is equal to the sum of the velocities after impact

total momentum of the bodies before impact is equal to the total momentum of the bodies after impact

For a swinging pendulum, which of the following is true when it is at its lowest point during an oscillation?

Which of the following implements is/are designed to take advantage of a large moment provided by a relatively small force? I. Claw hammer II. Crowbar III. Pair of tweezers IV. Pair of wire cutters

The rate of which of the following determines the power of a machine? I. Doing work II. Converting energy III. Changing temperature

A solid object, X, floats in mercury and sinks in water. A solid object, Y, floats in both mercury and water. Which of the following is true about X and Y?

X is less dense than Y.

X and Y are both denser than water.

X and Y are both denser than mercury.

Which of the following statements is/are correct?

I. The pressure of the gas is less than that of the atmosphere. II. For a small pressure difference, mercury may be used in the manometer for an accurate reading of the gas pressure. III. In order to bring the two menisci in the manometer to the same level one could open the stop-cock, K.

A block is allowed to fall freely towards the ground. As it falls, its gravitational potential energy

is converted to kinetic energy

is converted to internal energy

To check the upper fixed point on the Celsius scale, a thermometer is placed in

boiling water at atmospheric pressure

melting ice at atmospheric pressure

steam above boiling water at atmospheric pressure

water in contact with melting ice at atmospheric pressure

A fixed mass of gas is compressed at constant temperature. The molecules of the gas will

hit the sides of the container more often

have more kinetic energy

Charles' law describes the variation of

volume with pressure of a fixed mass of gas at a constant temperature

volume with mass of a gas at constant temperature and pressure

pressure with temperature of a fixed mass of gas at constant volume

volume with temperature of a fixed mass of gas at constant pressure

The kinetic theory of matter suggests that the molecules of a gas are

closely packed and vibrating

closely packed and moving over each other

far apart and vibrating about a fixed point

far apart and moving at random

A student wishes to use solar energy to boil an egg in the shortest possible time by placing a pot containing the egg at the focal point of a concave reflector. Which of the following combinations of surfaces should the student choose?

A shiny white pot and a dull black reflector

A dull black pot and a shiny white reflector

A dull white pot and a shiny black reflector

A shiny black pot and a dull white reflector

The figure above shows a piece of ice wrapped in copper gauze and submerged in a glass test tube of water. The water when heated at the top boils long before the ice is melted. The MAIN reason for this is that

the test tube is a poor conductor of heat

copper is a good conductor of heat

ice is less dense than water

water is a poor conductor of heat

Which of the following are reasons why a hot liquid, placed in a double-walled vacuum flask, retains its heat for a long time? I. Evacuated space between the double walls reduces the loss of heat by conduction. II. Silver inner walls reduce the loss of heat by radiation. III. The silvered outer wall helps to absorb heat from the surroundings.

Solar heating panels use the sun's radiation to warm water. The panels are blackened because dark surfaces are good

transmittors of heat

Which of the following would be the basic difference between a transverse mechanical wave and a longitudinal mechanical wave? I. Medium through which they travel II. Direction of vibration of particles in medium III. Wavelength

The spreading of a wave into the region behind an obstruction is called

Which of the following will change when a wave is refracted at a boundary? I. Velocity II. Wavelength III. Frequency

Sound waves travel fastest in

Which row in the table below correctly compares X-rays and visible light?

High frequency / Low frequency

Long wavelength / Short wavelength

Carry less energy / Carry more energy

The table below lists the refractive indices of four different materials.

In which medium would the light waves have the slowest speed?

Which of the diagrams BEST represents the passage of a beam of white light through a triangular glass prism?

A ray of light in air strikes a glass block at an angle of incidence of 0°. The light will be

refracted at 90° to normal

refracted at an unknown angle

Which of the following diagrams BEST shows the behaviour of light rays passing through a glass lens in air?

If a converging lens is used as a magnifying glass, the image formed is

real, inverted, diminished

real, erect, diminished

virtual, inverted, magnified

virtual, erect, magnified

Two light, equally charged aluminium spheres A and B are suspended by insulating threads. If they come to rest as shown in the diagram, the force keeping them apart is

Which of the following ratios could represent the ampere?

The 'glasshouse' effect refers to the glasshouse acting as a heat trap. This is a direct result of

short wavelength infrared rays which are unable to penetrate glass

long wavelength infrared rays which are unable to penetrate glass radiated from the sun

short wavelength infrared rays which are unable to penetrate glass radiated from the objects within the glasshouse

long wavelength infrared rays which are unable to penetrate glass radiated from the objects within the glasshouse

The resistance of an IDEAL ammeter is assumed to be

Which of the following formulae (in which the symbols have their usual meaning) is a mathematical expression of Ohm's Law?

Which of the following statements for the parallel circuit in the diagram is/are true? I. The potential difference across each of the resistors is the same. II. The potential difference between X and Y is the same as that across the 2 resistor. III. The current through each of the resistors is different.

An appliance is connected to the mains by a cable which has three wires. What colour should the insulation be on the lead connected to the fuse?

Rectification can BEST be done by using a

Which of the following circuits can be used for half-wave rectification?

When two magnets, touching at their N and S poles, are separated, the force between them

first increases and then decreases

Which of the following shows the direction in which a plotting compass would point when placed near the bar magnet shown below?

Which of the following effects?

Which of the following would induce an e.m.f. in a conductor? I. Moving a magnetic field across the conductor II. Moving the conductor in the magnetic field of a magnet III. Placing the conductor near to a wire carrying an alternating current

Which of the following does the diagram above represent?

A positively charged particle, X, is moving at high speed in the direction indicated. In which direction will the magnetic field deflect the particle?

In which of the following devices is a commutator used?

Moving coil microphones

Which of the following scientists discovered that the nucleus also contained neutrons?

The nuclide $_{88}^{226}$ Ra contains

90 protons and 234 neutrons

235 protons and 90 neutrons

90 protons and 144 neutrons

144 protons and 90 neutrons

When alpha particles, beta particles and gamma rays from a radioactive source are subjected to a transverse magnetic field, which of them would NOT be deviated from their original path?

I. Alpha II. Beta III. Gamma

Which of the following equations for nuclear reactions is correct?

${}{88}^{226}\text{Ra} → {}{86}^{222}\text{Rn} + \beta\text{- particle}

${}{6}^{14}\text{C} → {}{7}^{15}\text{N} + \beta\text{- particle}

${}{88}^{226}\text{Ra} → {}{86}^{222}\text{Rn} + \alpha\text{- particle}

${}{6}^{14}\text{C} → {}{7}^{15}\text{N} + \alpha\text{- particle}

Which of the following scientists discovered the relationship E=mc²?

CSEC Physics Paper 1 January 2006 - Free CXC Past Paper with Answers

CSEC Physics Paper 1 January 2006 Questions