Question 1 of 6Energy
O Level Physics
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- Paper 1Energy
The diagram shows a shot put ball on a smooth ramp. The ball is released from the position shown to roll down the ramp. What is the…
- Paper 2Nuclear fusion and Einstein's mass-energy equivalence
Which of the following best describes nuclear fusion?
- Paper 2Nuclear fusion and Einstein's mass-energy equivalence
In Einstein's mass-energy equivalence formula, E = mc², what physical quantity does the symbol c represent?
- Paper 2Nuclear fusion and Einstein's mass-energy equivalence
The sun releases 1.8×10⁶ J of energy from nuclear fusion. Using E = mc², where c = 3×10⁸ m/s, calculate the corresponding decrease in mass.
- Paper 2Electrical power, charge, and resistance of a light bulb; bulbs in a mixed network
A light bulb is labelled 240 V, 60 W. Calculate the current that flows through the bulb when it is operating normally.
- Paper 2Electrical power, charge, and resistance of a light bulb; bulbs in a mixed network
A light bulb is labelled 240 V, 60 W. Calculate the resistance of the bulb using R = V²/P.
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