CLASS 6
REVISION WORKSHEET -LIGHT ,SHADOW AND REFLECTION

Which of the following is a false?
(a) All objects cast shadows.

(b) Mirror changes direction of light that falls on it

(c) image in a plane mirror is of the same size and colour as that of the object.

(d) Coloured objects form coloured shadows

(e) The phenomenon of bouncing back of light after falling on the surfaces of the objects is called reflection of light.

Question 2

 What is true about reflection from plane mirror?
(a) The image formed by plane mirror is erect and virtual.

(b) Size of the image formed by plane mirror is equal to the size of the object.

 (c) The distance of the image behind the plane mirror is equal to the distance of the object from the mirror

(d) All the above

Question 3

Which of the following is sources of artificial light?
(a) electric bulb

(b) Candle

(c)  Torch

(d) All the above

Question 4

What is lateral inversion?
(a) Image looks shorter in size
(b) Image looks larger in size
(c) The right side of the object appears to be the left side of its image and vice-versa
(d) None of the above

Question 5

Two statement are given

Statement A: We cannot see our image in the mirror in complete dark room because there is no light to reflect.

Statement B: We cannot see objects through T shaped pipe because light travels through straight line

(a) Statement A is correct only
(b) Statement A is correct only
(c) Statement A and B both are incorrect
 (d) Statement A and B both are correct
 

Long Answer type questions

Question 6

Distinguish between

a) transparent, translucent and opaque materials?

b) Luminous and Non Luminous objects

Question 7

Moon appears bright at night. Is it a luminous or non-luminous body?

Question 8

Explain how we see our image in the Mirror?

multiple choice questions

1. Stars are

a. Non luminous bodies

b. Luminous bodies

c. Artificial sources of light

d. Opaque bodies

2. Moons and planets

a. Radiate light energy

b. Reflect light energy

c. Absorb light energy

d. Split light energy

3. Rectilinear propagation of light means

a. Light travels in straight lines

b. Light travels in curved path

c. Light travels in zig-zag path

d. Light travels in circular path

4  The speed of light is

a. 300,000 km/s.

b. 300,000 m/s

c. 30,000 km/s

d. 30, 000 m/s

5. The light from the sun reaches the earth in

a. 8.33 minutes

b. 8.33 seconds

c. 18. 33 minutes

d. 88.33 seconds

6. A body which emits light by itself is

a. Luminous body

b. Non luminous body

c. Opaque body

d. Shadow

7. The size of a shadow of an opaque object close to the screen and away from the source of light

a. Increases

b. Decreases

c. Remains the same

d. First decreases and increases.

8. This takes place from smooth polished surface when a beam of light falls on it

a. Reflection

b. Absorption

c. Refraction

d. Radiation

9. The image formed in pinhole camera is

a. Inverted

b. Erect

c. None of these

d. Both a and b

10. A dark patch formed by an opaque body placed in the path of light is called

a. Image

b. Object

c. Shadow

d. Screen

11. Reflection does not takes place from a

a. Polished metal plate

b. Mirror

c. Undisturbed water

d. Book