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Year 10 mixed paper set

Pearson Edexcel International GCSE

Physics — Year 10 Paper 1

Sports day · mixed Topics 1–5

Time allowed: 40 minutes

Total marks: 25

Candidate name:

Centre / class:

Answer all questions. You may use a calculator. Take $g = 10\,\text{N/kg}$. Show your working. This paper samples Topics 1–5 (Double Award only).

1

Topic 1 A teacher pushes a $80\,\text{kg}$ trolley of sports kit. The driving force is $240\,\text{N}$ and friction is $80\,\text{N}$.

(a) Calculate the resultant force on the trolley.

[2]

(b) Calculate the acceleration of the trolley.

[3]

(Total for Question 1 = 5 marks)

2

Topic 2 An electric kettle used in the sports hall is labelled $230\,\text{V}$, $920\,\text{W}$.

(a) Calculate the current in the kettle.

[2]

(b) Choose the most appropriate fuse ($3\,\text{A}$, $5\,\text{A}$ or $13\,\text{A}$) and explain your choice.

[3]

(Total for Question 2 = 5 marks)

3

Topic 3 A starting pistol produces a sound wave in air. The frequency is $680\,\text{Hz}$ and the wavelength is $0.50\,\text{m}$.

(a) Calculate the speed of the sound wave.

[2]

(b) State whether sound is longitudinal or transverse, and explain how the particles of air move compared with the direction the wave travels.

[3]

(Total for Question 3 = 5 marks)

4

Topic 4 A high jumper of mass $60\,\text{kg}$ raises her centre of mass by $1.2\,\text{m}$.

(a) Calculate the increase in gravitational potential energy.

[2]

(b) The jumper’s muscles transfer $1440\,\text{J}$ of energy. Calculate the efficiency of this transfer and state one store that the wasted energy is transferred to.

[3]

(Total for Question 4 = 5 marks)

5

Topic 5 A full drinks bottle has mass $0.54\,\text{kg}$ and volume $5.0\times 10^{-4}\,\text{m}^3$.

(a) Calculate the density of the contents. Give the unit.

[3]

(b) The bottle stands on a bench. The area of the base is $3.0\times 10^{-3}\,\text{m}^2$. Calculate the pressure on the bench due to the weight of the full bottle.

[2]

(Total for Question 5 = 5 marks)

END OF PAPER 1 — Sports day

Pearson Edexcel International GCSE

Physics — Year 10 Paper 2

Workshop · mixed Topics 1–5

Time allowed: 40 minutes

Total marks: 25

Candidate name:

Centre / class:

Answer all questions. You may use a calculator. Take $g = 10\,\text{N/kg}$. Show your working. This paper samples Topics 1–5 (Double Award only).

1

Topic 1 A $900\,\text{kg}$ van is driven out of a workshop. The driving force is $2700\,\text{N}$ and resistive forces total $900\,\text{N}$.

(a) Calculate the resultant force.

[2]

(b) Calculate the acceleration. State the unit.

[3]

(Total for Question 1 = 5 marks)

2

Topic 2 An electric drill is labelled $230\,\text{V}$, $1840\,\text{W}$.

(a) Calculate the current in the drill.

[2]

(b) The drill is used for $2.0\,\text{minutes}$. Calculate the charge that flows. Use $Q=It$.

[3]

(Total for Question 2 = 5 marks)

3

Topic 3 A workshop radio is tuned to a station of frequency $100\,\text{MHz}$. Radio waves travel at $3.0\times 10^8\,\text{m/s}$.

(a) Calculate the wavelength.

[3]

(b) State one property that is the same for all electromagnetic waves in a vacuum.

[2]

(Total for Question 3 = 5 marks)

4

Topic 4 A hoist lifts a $40\,\text{kg}$ engine block through $2.5\,\text{m}$ at constant speed.

(a) Calculate the work done against gravity.

[2]

(b) The hoist takes $5.0\,\text{s}$. Calculate the useful power output.

[3]

(Total for Question 4 = 5 marks)

5

Topic 5 An oil drum contains oil of density $800\,\text{kg/m}^3$. The depth of oil is $1.5\,\text{m}$.

(a) Calculate the pressure due to the oil at the bottom of the drum.

[3]

(b) State what happens to this pressure if the drum is taken to a planet where $g$ is larger, and explain using $p=h\rho g$.

[2]

(Total for Question 5 = 5 marks)

END OF PAPER 2 — Workshop

Pearson Edexcel International GCSE

Physics — Year 10 Paper 3

School lab · mixed Topics 1–5

Time allowed: 40 minutes

Total marks: 25

Candidate name:

Centre / class:

Answer all questions. You may use a calculator. Take $g = 10\,\text{N/kg}$. Show your working. This paper samples Topics 1–5 (Double Award only).

1

Topic 1 A laboratory spring has an unstretched length of $20.0\,\text{cm}$. A $2.0\,\text{N}$ load stretches it to $25.0\,\text{cm}$.

(a) Calculate the spring constant. Assume Hooke’s law is obeyed.

[3]

(b) State what is meant by the elastic limit.

[2]

(Total for Question 1 = 5 marks)

2

Topic 2 A $12\,\text{V}$ battery is connected to a $4.0\,\Omega$ resistor and an $8.0\,\Omega$ resistor in series.

(a) Calculate the current in the circuit.

[2]

(b) Calculate the voltage across the $8.0\,\Omega$ resistor.

[3]

(Total for Question 2 = 5 marks)

3

Topic 3 A ray of light in air hits a glass block. The angle of incidence is $40^\circ$ and the angle of refraction is $25^\circ$.

(a) Calculate the refractive index of the glass.

[3]

(b) State two conditions needed for total internal reflection.

[2]

(Total for Question 3 = 5 marks)

4

Topic 4 A $2.0\,\text{kW}$ kettle is switched on for $90\,\text{s}$.

(a) Calculate the energy transferred electrically.

[2]

(b) Explain, in terms of particles, how thermal energy is transferred through the metal base of the kettle by conduction.

[3]

(Total for Question 4 = 5 marks)

5

Topic 5 A fixed mass of air is trapped in a syringe. At $100\,\text{kPa}$ the volume is $40\,\text{cm}^3$. The gas is compressed slowly to $20\,\text{cm}^3$ at constant temperature.

(a) Calculate the new pressure.

[3]

(b) Use kinetic theory to explain why the pressure increases when the volume is reduced at constant temperature.

[2]

(Total for Question 5 = 5 marks)

END OF PAPER 3 — School lab

Pearson Edexcel International GCSE

Physics — Year 10 Paper 4

On the road · mixed Topics 1–5

Time allowed: 40 minutes

Total marks: 25

Candidate name:

Centre / class:

Answer all questions. You may use a calculator. Take $g = 10\,\text{N/kg}$. Show your working. This paper samples Topics 1–5 (Double Award only).

1

Topic 1 A car travels at $20\,\text{m/s}$. The driver’s thinking time is $0.60\,\text{s}$. The braking distance is $20\,\text{m}$.

(a) Calculate the thinking distance and the stopping distance.

[3]

(b) State one factor that increases thinking distance and one factor that increases braking distance.

[2]

(Total for Question 1 = 5 marks)

2

Topic 2 A car heater is labelled $12\,\text{V}$, $48\,\text{W}$.

(a) Calculate the current in the heater.

[2]

(b) Calculate the resistance of the heater.

[3]

(Total for Question 2 = 5 marks)

3

Topic 3 An ambulance approaches a stationary pedestrian with its siren on.

(a) Describe the change in the observed frequency and wavelength of the sound as the ambulance approaches.

[3]

(b) State whether this Doppler effect happens for electromagnetic waves as well as for sound.

[2]

(Total for Question 3 = 5 marks)

4

Topic 4 A $1200\,\text{kg}$ van is travelling at $10\,\text{m/s}$.

(a) Calculate the kinetic energy of the van.

[2]

(b) The van then climbs a flyover of height $4.0\,\text{m}$. Calculate the increase in gravitational potential energy.

[3]

(Total for Question 4 = 5 marks)

5

Topic 5 Air in a car tyre is at $17^\circ\text{C}$ and $240\,\text{kPa}$. After a long drive the temperature of the air is $47^\circ\text{C}$. The volume is constant.

(a) Convert both temperatures to kelvin.

[2]

(b) Calculate the new pressure. Assume a fixed mass of air.

[3]

(Total for Question 5 = 5 marks)

END OF PAPER 4 — On the road

Pearson Edexcel International GCSE

Physics — Year 10 Paper 5

Home and garden · mixed Topics 1–5

Time allowed: 40 minutes

Total marks: 25

Candidate name:

Centre / class:

Answer all questions. You may use a calculator. Take $g = 10\,\text{N/kg}$. Show your working. This paper samples Topics 1–5 (Double Award only).

1

Topic 1 A skydiver falls from a plane and reaches terminal velocity before opening the parachute.

(a) Name the two forces acting on the skydiver in the vertical direction while falling.

[2]

(b) Explain, in terms of forces, why the skydiver reaches a terminal velocity.

[3]

(Total for Question 1 = 5 marks)

2

Topic 2 A lamp is connected in series with an LDR and a $6.0\,\text{V}$ battery.

(a) State what happens to the resistance of the LDR when it is covered, and what happens to the current in the lamp.

[3]

(b) A thermistor is used in a similar circuit to switch a fan on when a room warms up. State what happens to the resistance of a thermistor as temperature increases.

[2]

(Total for Question 2 = 5 marks)

3

Topic 3 Optical fibres use total internal reflection to carry pulses of light.

(a) Draw, or describe, the path of a ray that stays inside a straight optical fibre by TIR.

[2]

(b) Ultraviolet is used in some sterilising lamps. State one useful application and one hazard of ultraviolet radiation.

[3]

(Total for Question 3 = 5 marks)

4

Topic 4 A room heater warms air, which then circulates around the room.

(a) Explain how a convection current is set up in the air.

[3]

(b) The heater has an input energy of $2000\,\text{J}$ in a given time. $1600\,\text{J}$ is usefully transferred thermally to the room. Calculate the efficiency.

[2]

(Total for Question 4 = 5 marks)

5

Topic 5 A gardener of weight $800\,\text{N}$ stands on soft soil. Each boot has area $0.020\,\text{m}^2$ in contact with the ground.

(a) Calculate the pressure on the soil when the gardener stands on both feet.

[3]

(b) The gardener then stands on a wide board. Explain why this reduces the pressure on the soil.

[2]

(Total for Question 5 = 5 marks)

END OF PAPER 5 — Home and garden