比能、能量与质量

e = E / m

计算示例

5 000 J ; 2 kg → 2 500 J/kg

比能、能量与质量 — e = E / m

请使用相互兼容的单位，并确认公式适用的物理条件。

Take one idea at a time. If a new word appears, connect it to a concrete object, number or experiment before moving on.

Say the idea aloud in your own words, then test it with a simple example.

质能等价

Memorising a sentence is not the same as understanding the mechanism behind it.

E = 5000 J; m = 2.0 kg

代入数值: e = 5000 / 2.0 = 2500 J·kg⁻¹

检查: e = E / m

练习

解答: E = 5000 J; m = 2.0 kg → e = 5000 / 2.0 = 2500 J·kg⁻¹. e = E / m