Edexcel A Level Physics Paper 1: Advanced Physics I June 2024 question paper 9PH0/01

Which of the following is the base unit for charge?

Which of the following could not be accelerated in a LINAC?

A toy car moves up a slope at a constant speed, as shown. The car is moved by a motor with a power output of 5.2 W. The car gains a gravitational potential energy of 0.40 J in a time of 1.1 s.

Which of the following expressions gives the work done, in J, against resistive forces?

Questions 4 and 5 refer to two small positively charged spheres S₁ and S₂ suspended by threads,

4 Which of the following vector diagrams shows the forces acting on S₂?

A B C D

Questions 4 and 5 refer to two small positively charged spheres S₁ and S₂ suspended by threads,

5 The electrostatic force between the two charges is initially F.

The charge on S₁ is doubled whilst the charge on S₂ is unchanged. The distance between S₁ and S₂ doubles. Which of the following is the new force on S₂?

A length of wire has a non-uniform cross-sectional area. There is an electric current in the wire.

Which of the following is not constant along the length of this wire?

A roundabout completes 5.0 revolutions in 20 s.

Which of the following is the angular velocity of the roundabout?

A person of mass 70 kg is standing on the floor of a lift, as shown. The lift is accelerating downwards at 1.5 m s⁻².

Which of the following gives the normal reaction R, in N, acting on the person?

An object was thrown so that it followed the path shown. Assume drag forces were negligible.

The object was thrown with an initial vertical component of velocity u. The time taken to reach maximum height is t.

Which of the following could not be used to determine the maximum vertical height s reached by the object?

A film involves a gang of bank robbers making a getaway on a bus loaded with gold bars. The bus spins out of control and ends up balancing on the edge of a cliff, as shown.

State what is meant by the moment of a force about a point.

Electrical power is transmitted from Norway to Britain using a cable laid under the North Sea.

The following information is published on a website.

Deduce, by calculation, whether the claim for efficiency is correct.

Beams of antiprotons are often used in particle physics experiments.

Show that the rest mass of an antiproton is about 900 MeV / c².

The decay of a positive muon produced a positron, an electron neutrino and a muon antineutrino. The diagram shows the tracks formed in a particle detector.

A muon belongs to a family of particles called leptons.

State two features that all particles in the lepton family have in common.

Write a nuclear equation for the decay of the muon (μ) described above.

Describe the role of the magnetic field in a particle detector.

Explain how the diagram gives evidence that a particle or particles, other than the positron, were produced in this decay.

A teacher demonstrates the electric field produced between two parallel metal plates. The plates are connected to a variable power supply, as shown. The power supply has a very large internal resistance and includes a voltmeter that indicates its output.

Add to the diagram to show the electric field between the two plates.

Explain why the reading on the voltmeter indicates the e.m.f. of the power supply.

The power supply output is increased until sparks are heard and are seen in the gap between the plates. Sparks form in air when the electric field strength exceeds 3.010⁶V m⁻¹ and the air becomes conducting for a short time.

Calculate the minimum potential difference across the plates for sparks to be created.

distance between parallel plates = 2.0 mm

Explain why the voltmeter reading decreases significantly whenever sparks are produced.

A student is investigating circuits that include a filament bulb. The filament bulb is labelled ‘1.5 V, 0.50 W’.

Show that the resistance of the filament bulb when operating normally is about 5 Ω.

*(b) The student wishes to control the brightness of the filament bulb using a potentiometer. The student connects the circuit shown. The total resistance of the potentiometer is very much larger than the resistance of the filament bulb.

Explain how the brightness of the filament bulb changes as the potentiometer slider is moved from A to B.

The student connects the filament bulb in the circuit shown below. The capacitor is initially uncharged and has a capacitance of 1.2 F.

The resistance of the filament bulb is 5 Ω.

Explain how the brightness of the filament bulb will vary as the switch is closed.

Over one hundred years ago, Rutherford supervised a series of experiments using a source of alpha particles and thin gold foil.

Describe the model of the atom that Rutherford proposed as a result of this series of experiments.

The initial kinetic energy of an alpha (⁴₂α) particle is 7.310⁻¹³J.

In a textbook, it states that an alpha particle with this energy would be brought to rest when it reached a distance of 5.010⁻¹⁴m from the centre of the

Deduce whether this statement is correct.

Determine the initial momentum of the alpha particle.

An alpha particle moves along a path directly towards a gold nucleus, as shown.

An elastic interaction occurs and the alpha particle recoils.

State what is meant by an elastic interaction.

State what happens to the atoms in the gold foil as a result of these interactions.

Regenerative braking supplies a current back to the power transmission system whilst slowing a vehicle. The arrangement shown can be used as a regenerative braking system on a train.

The coil rotates with the wheels of the train. Two copper rings are connected to the ends of the coil. The rings rotate with the coil and two carbon blocks make electrical contact with the rings as they rotate.

Describe how this arrangement can be used as a regenerative brake.

A specification for a new train states that the train should be able to accelerate to a speed of 360 km hour⁻¹ from rest, and that this acceleration should be completed within 40 km of level track.

The graph shows the performance of the train on a test run.

Calculate the acceleration of the train as it accelerates to a speed of

Deduce whether the performance of the train met the specification on this test run.

On curved tracks there is a maximum safe speed for the train.

Explain why there is a maximum safe speed for a train travelling on a curved track.

When the train travels at 200 km hour⁻¹, the minimum safe radius of curvature of the track is 1800 m.

Calculate the minimum safe radius of curvature for a speed of 360 km hour⁻¹.