Light
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
How light travels in straight lines
SubtopicHow light travels in straight lines under Light for Grade 5 IGCSE.
Preview questions (no answers)
- 1.
When drawing light rays entering a human eye from a lamp, the arrows should point:
A.Away from the eye toward the lamp
B.From the lamp toward the eye
C.In both directions
D.Upward toward the ceiling
- 2.
If you are in a completely dark room with no light sources, can you see a red apple?
A.Yes, because the apple is red
B.Yes, if you wait for your eyes to adjust
C.No, because there is no light to reflect off the apple into your eyes
D.No, because apples only exist in the light
- 3.
A light ray can be blocked by:
A.A transparent object
B.An opaque object
C.A shadow
D.Clear air
Download the worksheet for Light - How light travels in straight lines to practice offline. It includes additional chapter-level practice questions.
Reflection and the law of reflection
SubtopicReflection and the law of reflection under Light for Grade 5 IGCSE.
Preview questions (no answers)
- 1.
Which of these must be present for you to see a reflection in a mirror in a room?
A.A camera
B.A light source
C.A window
D.A computer
- 2.
What happens when you shine a light at a dark, matte (not shiny) black wall?
A.It reflects a perfect image
B.Very little light is reflected, most is absorbed
C.The light passes through the wall
D.The wall starts to glow like a lamp
- 3.
If you look at a clock in a mirror and it looks like it is 9:00, what is the actual time?
A.9:00
B.12:00
C.3:00
D.6:00
Download the worksheet for Light - Reflection and the law of reflection to practice offline. It includes additional chapter-level practice questions.
Refraction and the spectrum of light
SubtopicRefraction and the spectrum of light under Light for Grade 5 IGCSE.
Preview questions (no answers)
- 1.
Which of these is the primary source of light that creates a natural rainbow?
A.The Moon
B.The Sun
C.A flashlight
D.Streetlights
- 2.
Which color comes directly before Indigo in the spectrum?
A.Blue
B.Green
C.Yellow
D.Orange
- 3.
A prism works because different colors of light ______________ by different amounts.
A.Reflect
B.Refract
C.Disappear
D.Stop
Download the worksheet for Light - Refraction and the spectrum of light to practice offline. It includes additional chapter-level practice questions.
How we see objects and the function of the eye
SubtopicHow we see objects and the function of the eye under Light for Grade 5 IGCSE.
Preview questions (no answers)
- 1.
Which of these is a source of light you might use at night during a power cut?
A.A book
B.A candle
C.A teddy bear
D.A mirror
- 2.
If you see a red apple, what is happening to the light?
A.The apple is making its own red light
B.Red light is reflecting from the apple to your eyes
C.Your eyes are sending red light to the apple
D.The apple is a mirror
- 3.
Which part of the eye changes shape to help focus on objects that are near or far?
A.The lens
B.The pupil
C.The iris
D.The retina
Download the worksheet for Light - How we see objects and the function of the eye to practice offline. It includes additional chapter-level practice questions.