Visible Light is one of 9 topics in the Grade 8 Natural Sciences CAPS syllabus, covered across 3 lessons on Study Vault. Below are real practice questions from this topic with full worked answers.
Sample practice questions
Easy
1. What process transfers light away from a luminous object like the Sun?
Radiation
Conduction
Convection
Decomposition
Answer: Radiation — Light is transferred away from luminous objects, like the Sun, by a process called radiation.
Easy
2. In what kind of path does light always travel?
Straight lines
Curved lines only
Random zigzag paths
Circular paths only
Answer: Straight lines — Light always travels in straight lines.
Medium
3. What is the speed of light in empty space, in kilometres per second?
Answer: 300000 — Light travels through empty space at a speed of 300 000 kilometres per second.
