Calculate the weight of a 65 kg object on Earth (g = 9.8 N/kg).
22 marks
Calculate the current in a 4 Ω resistor connected to a 12 V supply.
33 marks
Describe how to plot the magnetic field pattern of a bar magnet.
42 marks
Calculate the density of an object with mass 540 g and volume 200 cm³.
52 marks
Calculate the weight of a 0.25 kg object on Earth (g = 9.8 N/kg).
62 marks
Calculate the current in a 46 Ω resistor connected to a 230 V supply.
72 marks
Calculate the force on a wire of length 0.5 m carrying 3 A at right angles to a magnetic field of 0.2 T.
82 marks
Calculate the density of an object with mass 2.7 kg and volume 0.001 m³.
92 marks
Calculate the work done when a force of 250 N moves an object 12 m in the direction of the force.
102 marks
Calculate the current in a 1.5 Ω resistor connected to a 6 V supply.
112 marks
Calculate the force on a wire of length 0.25 m carrying 8 A at right angles to a magnetic field of 0.05 T.
126 marks
Describe how to measure the density of an irregular stone.
132 marks
Calculate the work done when a force of 40 N moves an object 0.75 m in the direction of the force.
142 marks
A charge of 360 C flows in 120 s. Calculate the current.
154 marks
Explain how a simple electric motor works.
162 marks
Calculate the energy needed to change the state of 0.5 kg of a substance with specific latent heat 334,000 J/kg.
173 marks
A spring has a spring constant of 40 N/m. Calculate the force needed to stretch it by 0.15 m and the energy stored.
182 marks
A charge of 45 C flows in 15 s. Calculate the current.
192 marks
A transformer has 1000 turns on the primary coil and 50 on the secondary. The primary voltage is 230 V. Calculate the secondary voltage.
202 marks
Calculate the energy needed to change the state of 0.2 kg of a substance with specific latent heat 2,260,000 J/kg.
213 marks
A spring has a spring constant of 200 N/m. Calculate the force needed to stretch it by 0.03 m and the energy stored.
223 marks
Two resistors of 4 Ω and 6 Ω are connected in series to a 12 V battery. Calculate the current and the potential difference across the 4 Ω resistor.
232 marks
A transformer has 500 turns on the primary coil and 20000 on the secondary. The primary voltage is 11000 V. Calculate the secondary voltage.
243 marks
Explain why the temperature of ice stays at 0 °C while it is melting, even though energy is being supplied.
251 mark
What is the unit of potential difference?
Finished?
Answer every question to finish (25 left), or finish when the time’s up.
Score 0 / 60 · 0 of 25 marked
This paper is written by Plasmo in the style of the Edexcel GCSE Combined Science exam. It is not a past paper and is not produced or endorsed by the exam board.