The mass of the battery in the electric car is 420 kg.
The total mass of the electric car is 1610 kg.
Calculate the mass of the battery as a percentage of the total mass of the electric car.

How to approach this question

1. Recall the formula for calculating a percentage: (part / whole) × 100. 2. Identify the "part" (mass of the battery = 420 kg) and the "whole" (total mass of the car = 1610 kg). 3. Substitute these values into the formula. 4. Calculate the result.

Full Answer

Percentage = (mass of battery / total mass) × 100 Percentage = (420 / 1610) × 100 Percentage = 0.2608... × 100 Percentage ≈ 26.1 %

To find the mass of the battery as a percentage of the total mass, we use the formula: Percentage = (Part Value / Total Value) × 100 In this case: - Part Value = mass of the battery = 420 kg - Total Value = total mass of the car = 1610 kg Calculation: Percentage = (420 / 1610) × 100 Percentage = 0.260869... × 100 Percentage = 26.0869... % Rounding to one decimal place gives 26.1%. An answer of 26% would also likely be accepted.

Common mistakes

✗ Dividing the total mass by the battery mass. ✗ Forgetting to multiply by 100. ✗ Calculation errors.

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Practice the full AQA GCSE Physics Foundation Tier Paper 1

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