Daily Practice · GCSE Science

Daily Practice - GCSE Science

26th November 1997

5 questions · GCSE · 584 questions in this band

1
Circuits, Resistance and Components
How does the resistance of a thermistor change as it gets hotter?
2
Mains Electricity, Power and Energy
Give the equation linking energy transferred, charge flow and potential difference.
3
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.
4
Density and the Particle Model of Matter
Why does the temperature stay constant while a substance boils?
5
Particle Motion, Gas Pressure and Temperature
Why does reducing the volume of a gas increase the pressure even though the molecules do not speed up?

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