Daily Practice · GCSE Science

Daily Practice - GCSE Science

7th October 1997

5 questions · GCSE · 584 questions in this band

1
Energy
A kettle transfers 360000 J of energy in 150 s. Calculate its power in watts.
2
Energy Stores, Transfers and Calculations
Define specific heat capacity.
3
Efficiency, Power and Energy Resources
A lamp is supplied with 60 J and transfers 6 J as light. Calculate its efficiency as a percentage.
4
Electricity
A component has a current of 5.0 A and a resistance of 8.0 ohm. Calculate the power dissipated using P = I^2 x R.
5
Circuits, Resistance and Components
In a parallel circuit, how do the branch currents relate to the total current?

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