Worksheets › Class 7 › Light: Shadows and Reflections
Class 7 Light: Shadows and Reflections worksheet
CBSE Science. Luminous objects, shadows, plane mirror images, lateral inversion, pinhole cameras. Every sheet has 20 questions in three sections and an answer key, and the numbers change every time.
Sample questions
Real questions from this chapter, as the app sets them. Tap Answer to see the answer and working.
Section A · multiple choice
- 1.
Objects that give out their own light are called:
- opaque
- translucent
- non-luminous
- luminous
Answer
(d) luminous
- 2.
Which of these is LUMINOUS?
- a burning candle
- the planet Venus
- a wall
- a polished steel plate
Answer
(a) a burning candle
- 3.
Which of these is NON-LUMINOUS?
- a glowing bulb
- a star
- the Sun
- a mirror
Answer
(d) a mirror
Section B · short answer
- 4.
What three things are needed to form a shadow?
Answer
A source of light, an opaque object and a screen.
- 5.
Write "luminous" or "non-luminous": (a) the Moon (b) a polished steel plate
Answer
(a) non-luminous (b) non-luminous
Section C · long answer
- 6.
Describe an activity to show that light travels in a straight line.
Answer
Make holes in three cardboard pieces at the same height and line them up so a candle can be seen through all three. Move one card slightly to the side: the candle can no longer be seen, showing light travels in straight lines.
Fresh sheets for your child
In the app, every Light: Shadows and Reflections sheet is new: the app remembers the questions your child has already had and leaves them out. Print the sheet as a PDF, or use notebook mode and write the answers in a notebook.
Coming soon for Android and iPhone.