Light, shadows and reflection Worksheet-1

Light, shadows and reflection Worksheet-1

Multiple-Choice Questions:

1. An example of a transparent object is __________.

(A) Clear glass                                  (B) A piece of wood 

(C) Metal sheet                                (D) A mirror

2. A material that allows only some of the light to pass through it is said to be __________.

(A) Transparent                               (B) Translucent

(C) Mirror                                         (D) Opaque

3. Which of these materials could produce a shadow?

(A) Clear glass                                  (B) Clear water       

(C) Air                                                (D) A piece of wood

4. Which of these is/are not essential for a shadow to be produced?

(A) The sun                                       (B) A light source    

(C) An opaque object                      (D) A screen/surface

5. The shadow of an object does not show

(A) The shape of the object            (B) The outline of the object

(C) The colour of the object           (D) None of these

6. A smooth surface is called a __________ surface.

(A) Regular                                       (B) Irregular

(C) None of these

7. Reflection from which surface is called diffused reflection?

(A) Smooth                                      (B) Rough           

(C) Both of these                            (D) None of these

8. Light travels in a ____________ path.

(A) Zigzag                                         (B) Wavy

(C) Curved                                        (D) Straight

9. Artificial sources of light are

(A) Candles                                       (B) Electric bulbs

(C) Laser                                           (D) All of these

10. A mirror is a very good example of ___________ materials.

(A) Transparent                               (B) Translucent

(C) Opaque                                       (D) None of these

Answer Key:

1. (A)
2. (B)
3. (D)
4. (D)
5. (C)
6. (A)
7. (B)
8. (D)
9. (D)
10. (C)