OCR GCSE Combined Science A (Gateway) Physics Paper 11 Higher June 2025 question paper J250/11

A car travels 9000 m in 90 seconds.

What is the car’s speed?

A 0.01 m / s

B 0.1 m / s

C 10 m / s

D 100 m / s

A lift is stationary 20 m above the ground. The lift moves upwards until it is now 100 m above the ground. The lift then remains stationary. The mass of the lift is 450 kg.

What is the increase in gravitational potential energy of the lift?

Gravitational field strength = 10 N / kg

Use the equation: gravitational potential energy = mass × gravitational field strength × height

A 45.0 J

B 56.3 J

C 360 000 J

D 450 000 J

A mobile phone is charged for 3 hours. The mean charging current is 0.15 A.

What is the charge transferred to the mobile phone in this time?

Use the equation: charge flow = current × time

A 0.45 C

B 27 C

C 540 C

D 1620 C

A 2 V power supply is connected to a motor. 250 C passes in 50 s.

How much energy is transferred?

Use the equation: energy transferred = charge × potential difference

A 5 J

B 100 J

C 125 J

D 500 J

A student uses a stopwatch to measure the time it takes for a marble to travel down a ramp between two markers.

Which change will make the results more accurate ?

A Asking a second student to operate the stopwatch

B Decreasing the height of the ramp

C Moving the markers closer together

D Starting the stopwatch as soon as the marble is released

A student does a practical investigation to find the charge transferred when a laptop is charged.

Which equipment must they use?

A Ammeter only

B Ammeter and stopwatch

C Voltmeter only

D Voltmeter and stopwatch

A 5000 kg cannon fires a 10 kg cannonball.

Just after firing, the momentum of the cannonball is 50 kg m / s.

What is the velocity of the cannon just after firing?

Use the equation: momentum = mass × velocity

A –0.2 m / s

B –0.01 m / s

C 0.01 m / s

D 0.2 m / s

An iron bar can be magnetised by placing it inside a magnetic field.

What type of magnet is the iron bar?

The diagram shows a dipping compass.

Describe how dipping compasses are used to find the shape of the Earth’s magnetic field.

In the early part of the twentieth century, several scientists developed new ideas about what atoms look like.

Thomson proposed the plum pudding model in 1904.

What are the two main ideas about electric charge in this model?

Give one reason this model was not developed until 1904.

Rutherford fired alpha particles at gold foil. He published his results in a scientific journal.

Suggest two reasons why he published his results in a scientific journal.

Draw one line from one of the physicists to show which change they made to Rutherford’s model.

13* Two students run for 10 seconds.

The graph shows their motion.

Compare the motion of Student A and Student B.

Include acceleration and distance travelled.

A student uses a small magnet to build an electric motor.

The magnetic field around the magnet can be shown like this:

The battery is connected to the coil of insulated wire by the metal pins.

The current is clockwise around the coil of insulated wire and part of the coil is perpendicular to the magnetic field.

State the technique used to find the direction of the force acting on the coil.

The table shows some data about the motor.

Calculate the force acting on the coil.

Use the Equation Sheet.

The student now doubles the number of coils in the motor.

They do this by using a piece of wire which is twice as long.

The battery, the wire diameter, the wire material and the coil size are unchanged.

The current in the original coil was 500 mA.

State the current in the new coil.

Explain whether the new motor turns faster, slower, or at the same speed as the original motor.

Consider the force acting on the new coil.

A jeweller has a ring.

They also have some water, a measuring cylinder, and a digital balance.

Explain how they could use these items to find the density of the ring.

The jeweller knows that the ring is either made of copper or gold, or an alloy of copper and gold.

The table shows some data about copper and gold.

The jeweller finds that the density of the ring is 1600 kg / m³.

What is the most likely composition of the ring?

Tick (✓) one box.

Explain your answer to (i).

The table shows some data about liquid copper and liquid gold.

Explain why the densities of solids are greater than the densities of liquids.

Use ideas about particles and volume.

A student is investigating how force affects acceleration. They set up this apparatus.

Explain how they should use this apparatus to find acceleration.

Include any extra equipment they need.

Two forces act to reduce the acceleration of the car.

One of these forces is air resistance.

Name the other force.

Suggest how the teacher can reduce the effect of this other force.

The table shows the student’s results.

Suggest two changes the student could make to improve the validity of their results.

Predict the acceleration if a force of 1.2 N was applied to the car.

Use data from the table.

Acceleration =........ m / s²

Mass is an example of a quantity which has a magnitude, but no direction.

What scientific term is used for this type of quantity?

Some scientists are comparing the resistance of circuits.

Their first circuit contains one lamp, a cell, an ammeter, a voltmeter and some connecting leads.

Draw a circuit diagram to show how they should connect these components.

Diagram

The scientists build more circuits, each time adding one more lamp to their circuit.

The table shows their results.

Number of lamps	Potential difference across each lamp (V)	Total resistance in the circuit ()
1	6.0	5.0
2	6.0	3.8
3	6.0	3.3
4	6.0	2.9
5	6.0	2.6
6	6.0	2.4

Calculate the largest current through the cell observed by the scientists.

Use the equation: potential difference = current × resistance

Explain how the scientists connected the additional five lamps.

Use their results from the table. You can use a diagram.

Optional diagram