Key Stage 3 (KS3) Energy Practice Test 2026 - Free KS3 Energy Practice Questions and Study Guide

The warmth from the sun is an example of energy being transferred by light because the sun emits electromagnetic radiation, which includes visible light as well as infrared radiation. This infrared radiation carries energy, which travels through the vacuum of space and reaches Earth, warming surfaces and the atmosphere. When sunlight reaches you, the energy is absorbed by your skin, which is why you feel warm.

In contrast, while staring at a light bulb involves light being emitted, it does not result in energy transfer in a way that affects you significantly. Pushing a ball represents mechanical energy transfer through contact, rather than light. Heating a metal rod typically involves energy transfer through conduction, a process distinct from the transfer of energy via light. Thus, the warmth from the sun serves as the clearest example of energy being transferred by light.