Daily Practice

GCSE Science

28th April 1993

5 questions · GCSE · 584 questions in this band

1
Electricity
A resistor of resistance 15 ohm is connected to a 6.0 V supply. Calculate the current flowing through it. Use V = I x R.
2
Circuits, Resistance and Components
Describe the current-potential difference graph for a filament lamp.
3
Mains Electricity, Power and Energy
Calculate the current drawn by a 1150 W kettle on a 230 V supply.
4
Particle Model of Matter
A 1.5 kg block of iron is heated from 18 degrees C to 98 degrees C. The specific heat capacity of iron is 450 J/(kg degrees C). Calculate the change in thermal energy.
5
Density and the Particle Model of Matter
Why is the density of a gas much lower than that of the same substance as a liquid?

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