Cambridge & Pearson Edexcel Past Paper Questions
Browse 35,704 questions from Cambridge O-Level & A-Level and Pearson Edexcel IGCSE & IAL exams. Click any question to practice.
When the current in a wire is 5.0 A, the average drift speed of the conduction electrons in the wire is 7.4 × 10⁻⁴ m s⁻¹. Which row gives a possibl...
There is a current in a resistor for an unknown time. Which two quantities can be used to calculate the energy dissipated by the resistor?
Two cells with electromotive forces E₁ and E₂ and internal resistances r₁ and r₂ are connected to a resistor R as shown. [Figure showing two cells ...
A battery has an electromotive force (e.m.f.) E and internal resistance r. The battery delivers a current I to a variable resistor and the potentia...
Three identical resistors are connected between terminals P and Q in different networks X, Y and Z as shown. [Figure showing three resistor network...
The diagram shows a variable resistor R and two fixed resistors connected in series in a circuit to act as a potential divider. [Figure showing a p...
The table gives some data relating to four neutral (uncharged) atoms W, X, Y and Z. [Table showing nucleon (mass) number and total number of partic...
What is not a fundamental particle?
An unstable nucleus decays and emits a β⁻ particle. Which changes, if any, occur to the quark composition of the nucleus?
Answer all the questions in the spaces provided. 1 (a) Make estimates of:
A small charged glass bead of weight 5.4 × 10⁻⁵N is initially at rest at point A in a vacuum. The bead then falls through a uniform horizontal elec...
A small remote-controlled model aircraft has two propellers, each of diameter 16cm. Fig. 3.1 is a side view of the aircraft when hovering. [Figure ...
The variation with extension x of the force F applied to a spring is shown in Fig. 4.1. [Figure 4.1] The spring has an unstretched length of 0.080 ...
A ripple tank is used to demonstrate the interference of water waves. Two dippers D1 and D2 produce coherent waves that have circular wavefronts, a...
Define electric potential difference (p.d.). [1]
7 (a) The decay of a nucleus ¹⁸₃₅Ar by β⁺ emission is represented by ¹⁸₃₅Ar → X + β⁺ + Y. A nucleus X and two particles, β⁺ and Y, are produced by ...
State Newton's third law of motion.
A sphere in a liquid accelerates vertically downwards from rest. For the viscous force acting on the moving sphere, state:
State what is meant by the wavelength of a progressive wave.
State Kirchhoff's first law.
A nucleus of plutonium-238 (²³⁸Pu) decays by emitting an α-particle to produce a new nucleus X and 5.6 MeV of energy. The decay is represented by ²...
A uniform square sheet of card ABCD is freely pivoted by a pin at a point P. The card is held in a vertical plane by an external force in the posit...
A lift (elevator) of weight 13.0kN is connected by a cable to a motor, as shown in Fig. 2.1. [Figure 2.1] The lift is pulled up a vertical shaft by...
A potential difference of 1.2 × 10³ V is applied between a pair of horizontal metal plates in a vacuum, as shown in Fig. 3.1. [Figure 3.1] The sepa...
A ball X moves along a horizontal frictionless surface and collides with another ball Y, as illustrated in Fig. 4.1. [Figure 4.1] Ball X has mass 0...
Light waves emerging from the slits of a diffraction grating are coherent and produce an interference pattern. A narrow beam of light from a laser ...
A battery of electromotive force (e.m.f.) 12V and negligible internal resistance is connected to a network of two lamps and two resistors, as shown...
A stationary nucleus of a radioactive isotope X decays by emitting an α-particle to produce a nucleus of neptunium-237 and 5.5MeV of energy. The de...
In this experiment, you will investigate the motion of two pendulums.
In this experiment, you will investigate the motion of a magnet connected to some springs.
The kinetic theory of gases is based on a number of assumptions about the molecules of a gas.
State what is meant by specific latent heat.
A mass is suspended vertically from a fixed point by means of a spring, as illustrated in [Figure 4.1]. The mass is oscillating vertically. The var...
A section of a coaxial cable is shown in [Figure 5.1].
State an expression for the electric field strength E at a distance r from a point charge Q in a vacuum. State the name of any other symbol used.
An ideal operational amplifier (op-amp) has infinite bandwidth and zero output impedance.
A long straight vertical wire carries a current I. The wire passes through a horizontal card EFGH, as shown in [Figure 8.1] and [Figure 8.2 (view f...
Diagnosis using nuclear magnetic resonance imaging (NMRI) requires the use of a non-uniform magnetic field superimposed on a constant magnetic fiel...
A bridge rectifier using four ideal diodes is shown in [Figure 10.1]. The sinusoidal alternating electromotive force (e.m.f.) applied between point...
With reference to the photoelectric effect, state what is meant by work function energy.
One possible nuclear reaction that takes place is ₂₃₅U + ₀n → ⁹⁵Mo + ¹³⁹La + 2₀n + 7₋₁e. Data for nuclei in this reaction are given in [Figure 12.1].
what is seen through the microscope
A ball of mass M is held on a horizontal surface by two identical extended springs, as illustrated in Fig. 4.1. [Figure 4.1] One spring is attach...
The variation with time of the displacement of an amplitude-modulated (AM) wave is shown in Fig. 6.1. [Figure 6.1] The sinusoidal information sig...
Describe the principles of computed tomography (CT) scanning.
Electrons enter a rectangular slice PQRSEFGH of a semiconductor material at right-angles to face PQFE, as shown in Fig. 8.1. [Figure 8.1] A unifo...
Define what is meant by electric potential at a point.
10 (a) The upper electron energy bands in an intrinsic semiconductor material are illustrated in Fig. 10.1. [Figure 10.1] Use band theory to expl...
Radon-222 (²²²₈₆Ra) is a radioactive gas that decays randomly with a decay constant of 7.55 × 10⁻³ hour⁻¹.
(a) State Newton's law of gravitation. (b) A geostationary satellite orbits the Earth. The orbit of the satellite is circular and the period of the...