CSEC Physics Paper 1 May/June 2011 - Free CXC Past Paper with Answers

When used in front of a unit the prefix 'mega' means

3.1415926 expressed to two significant figures is

A slice of bread is squeezed into a little ball. Which quantity does NOT change?

A boy measured the height of the laboratory table with a metre rule. Which of the following is MOST likely to be correct?

In relation to the diagrams below, which of the following statements is/are correct?

What is the unit of the moment of a force?

Which of the following is a vector physical quantity?

A scalar quantity has

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

Which of the following is a unit of work?

A hydroelectric power station uses a renewable source of energy, X. This energy raises water to the top of a mountain so that it has gravitational potential energy. As the water runs down the mountain, it turns a turbine which converts Y energy into Z energy. Which set of answers for X, Y and Z is correct?

Power can be measured in

A book of weight 12 N is resting on a table. The force that the table exerts on the book is

When in use, in which of the machines is the effort or applied force LESS than the load or resist- ance?

When the tap is opened, water will flow from container P to container Q until

Which of the following is/are renewable source of energy? I. Solar radiation II. Wind energy III. Geothermal energy

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?

The graph shows the results of an experiment on change of phase. Solidification starts at Q. During which of the stages is the substance in the liquid phase?

The water when heated at the top boils long before the ice is melted. The MAIN reason for this is that

Which of the following (types of radiation) is responsible for an atom of $^{14}$C changing into an atom of $^{14}$N?

A flask contains air under pressure. Some of the air is let out slowly over a period of 10 seconds. When the flask is closed the

In which of the following is conduction the MAIN method of energy transfer?

Some molten naphthalene at 100 °C is allowed to cool down to room temperature. If naphthalene has a melting point of 80 °C, which of the following graphs BEST represents the cooling curve?

The specific latent heat of vapourization of water is the energy required to change 1 kg of water at

A metal of mass, m, requires energy, E, to raise its temperature from T₁ to T₂. The specific heat capacity of the metal will be given by

Which of the following statements BEST explains Brownian motion of smoke particles in air?

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

In which of the following groups are the electromagnetic waves written in order of increasing frequency, starting with the lowest?

If $\lambda$ = wavelength, the distance between C₁ and R₂ is

Which of the following statements about sound is NOT correct?

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

In a longitudinal wave, the particles

In a projector the slide is 5 cm from the lens, while the screen is 500 cm from the lens on the other side. What is the magnification?

An eye can see the image of an object which is placed in front of a plane mirror because

For which of the following object distances will a convex lens of focal length 18 cm produce a real image? I. 15 cm II. 36 cm III. 54 cm

Which of the following units is the SMALLEST quantity?

Which of the following diagrams represents the electric field existing between two oppositely charged point charges?

Which of the following relationships between electrical quantities is correct?

What is the resistance of R?

Which of the following gives the correct colour code for electrical wiring?

In which of the circuits below would the meters give readings which would enable you to determine the resistance of the filament lamp?

The electric current supplied to homes and to factories is alternating (a.c) rather than direct (d.c.) because

Magnetic induction occurs when

Which of the following diagrams shows the magnetic field between a bar magnet and a piece of iron?

Which of the following diagrams BEST represents the magnetic field around the wire?

A plastic rod, P, is rubbed with cloth, Q. P becomes positively charged. This is because

When the switch, X, is closed the wire moves

Which of the following graphs illustrates an ALTERNATING current?

A conductor, rotating in a uniform magnetic field, induces maximum instantaneous current when the conductor cuts the magnetic field lines at

Which of the following graphs is a representation of the current/p.d. relationship for a metallic conductor at a constant temperature?

The parts labelled X in the diagram are known as the

Rectification can BEST be done by using a

Which of the following statements is/are correct?

I. The mass (nucleon) number is 11. II. The atomic (proton) number is 5. III. The atom shown in the diagram is positively charged.

According to the Rutherford Bohr model of a neutral, stable atom, if n = number of neutrons, p = number of protons and e = number of electrons in the atom, then for all elements

An isotope of zinc has a nuclide which can be represented as $^{64}_{30}$Zn. The number of electrons in a neutral atom is

Which of the following would be possible symbols for an isotope of a nuclide represented by $^{A}_{Z}$X?

I. $^{A-2}_{Z}$X II. $^{A}_{Z-2}$X III. $^{A+2}_{Z}$X

Which of the following are definitions of the term 'half-life' of radioactive nuclide?

I. The time taken for the activity of any give sample to fall to half its original value. II. The time taken for half the nuclei present in any given sample to decay. III. Half the average number of disintegrations per second.

In the equation $\Delta E = \Delta mc^2$,