GCE A Level Physics H1 Online Mock Test: 2026

1. A voltmeter connected across a resistor in a circuit gives readings that have high precision but low accuracy.
Which row describes the likely error in readings taken with this voltmeter?

2. An astronomical event in a nova (new star) was estimated to have an energy of 100TJ and a duration of 10µs.
What power was produced in this event?

3. Two vectors, P and Q, have equal components in the x-direction, but the magnitude of P is smaller than the magnitude of Q.
How do the angles that Q and P make with the y-axis, and the magnitudes of Q and P in the y-direction, compare?

4. The diagram shows a rectangle with perimeter P.
The sides of the rectangle, measured with an uncertainty of 0.1cm, are Q = 20.0cm and R = 10.0cm

What is the increasing order of the percentage uncertainty of Q, R and P, starting with the smallest?

5. An astronaut is working on the surface of the Moon. The gravitational field strength g is 1.6ms^–2. He drops a hammer from rest and catches it when it has a speed of 1.8ms^–1 and is 0.50m above the ground. From which height above the ground did he drop the hammer?

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7. A ball is projected horizontally and falls under gravity. After time t it has travelled a horizontal distance x and fallen a vertical distance y. Air resistance is negligible.
Which row correctly states the distance travelled horizontally and vertically after time 2t?

8. A firework explodes into many parts after being fired high into the air.
At the time when the explosion takes place, what happens to the total momentum and the total kinetic energy of the system?

9. A train consisting of six wagons each of mass 6.0 × 10⁴ kg is pulled at a constant speed by a locomotive of mass 24 × 10⁴ kg along a straight horizontal track. The horizontal force resisting the motion of each wagon is 4000N

The link between wagons 2 and 3 breaks.
What is the acceleration(ms^–2) of the locomotive immediately after the link breaks?

10. The elastic potential energy stored in a stretched wire can be calculated from a suitable straight‑line graph which has force plotted on the y-axis.
Which measurement of the wire is plotted on the x-axis, and which property of the graph is equal to the elastic potential energy stored in the wire?

11. Three non-parallel forces act on a body so that it is in equilibrium. Which condition is not correct?

12. A flat piece of card of uniform thickness is cut out and marked into squares.
Which labelled point is the centre of gravity of the card?

13. A small coin of mass 10g is placed on a horizontal rotating disc at a distance of 5cm from the centre of the disc. The maximum frictional force between the coin and the disc is 0.2N. What is the largest angular velocity that the disc can have without the coin slipping?

14. Which statement about work done is correct?

15. The function of many machines is to transfer energy from one store to another as efficiently as possible.
Which machine is the most efficient?

16. For an electron beam, the following quantities are known or are easily measured.
● area A, when the beam hits a target
● beam current I
● accelerating potential difference V
● elementary charge e
Which expression gives the rate of arrival of electrons per unit area on the target?

17. What is the definition of the electromotive force (e.m.f.) of a power supply?

18. The diagram shows a circuit in which a microammeter records a current of 0.8µA.

Which row gives the direction of movement of electrons through the microammeter shown in the circuit and the number of these electrons passing through the microammeter in 1 second?

19. A voltage with the square waveform shown in the diagram is applied across a 100Ω resistor

20. A resistor with a value of resistance much greater than R is placed in parallel with a resistor of resistance R.
What is the resistance of the combination?

21. A fixed resistor, a variable resistor, a filament lamp and a cell with negligible internal resistance are arranged in four different circuits.

In how many of these circuits is the brightness of the lamp changed by adjusting the resistance of the variable resistor?

22. A beam of positively charged particles is directed towards one side of a square region that contains a uniform magnetic field.
The magnetic field is perpendicular to the velocity of the particles and the plane of the square.
The field can be varied to any magnitude but is constant in direction.
The region of the magnetic field contains a vacuum.

After travelling through the magnetic field, through how many sides of the square region can the positively charged particles possibly pass?

23. There is a current in a straight wire in the direction PR, as shown in the diagram. P and R are two corners of an imaginary cube, with other corners Q, S, T, U, V and W.

A uniform magnetic field is applied through the cube in direction QP. What is the direction of the magnetic force on PR?

24. The electric current through a cylinder of semiconductor material is supplied by copper wires, as shown in the diagram

The charge carriers in the semiconductor material are electrons. The semiconductor material and the copper have the same cross-sectional area. The table gives details of the number of free electrons per cubic metre in each material.

The drift velocity of electrons through the copper wire is 0.58 mms^–1 . What is the drift velocity of electrons through the semiconductor material?

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Between which points is the resistance of the combination a maximum?

26. A beam of electrons enters a region in which there are magnetic and electric fields directed at right angles. It passes straight through without deviation.

A second beam of electrons, travelling twice as fast as the first, is then directed along the same line. How is this second beam deviated?

27. A nucleus, Mg (12,27) , decays by emitting a β-particle. What are the proton number and the neutron number of the new nucleus that is formed by the decay?

28. The mass of a nucleus is X. The total mass of its constituent protons and neutrons is Y. What is the binding energy of the nucleus?

29. The table shows three properties of different types of ionising radiation.

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