Free Printable Light

1.

Objects that emit their own light are called (a) .

2.

Which of the following use bioluminescence.

a)

Firefly

b)

Candle

c)

Dinoflagellates

d)

Giant Siphonophore

e)

Caterpillar

3.

Bioluminescence is used by animals for:

a)

Attracting prey

b)

To look good

c)

To ward away danger

d)

To illuminate their dinner

4.

The moon is ____.

a)

Transparent

b)

Explosive

c)

Full of pizzas

d)

Opaque

e)

Translucent

5.

Select the correct spelling

a)

Rectilinnear propogtoion of litgh

b)

Rectillinear propogation of light

c)

Rectilinear propagation of light

d)

Rectelinear propagation of light

6.

The moon appears bright due to ______.

a)

reflection

b)

refraction

c)

scattering

d)

luminousity

7.

There are 3 types of lunar eclipses.

a)

True

b)

False

8.

The consequences of rectilinear propagation of light are:

a)

scattering of light; occurance of eclipses

b)

bioluminescence; formation of shadows

c)

scattering of light; formation of shadows

d)

formation of shadows; occurance of eclipses

9.

The speed of light is:

a)

$3\times10^8$ m/s

b)

$3\times10^9\$ m/s

c)

$3\times10^7$ m/s

d)

$3\times10^8$ km/s

10.

If I=size of image, O=size of object, v=image distance, u=object distance

The ratio of magnification is:

a)

$Magnification\ =\ \frac{I}{O}$

b)

$Magnification\ =\ \frac{O}{\pi}$

c)

$Magnification\ =\ \frac{O}{I}$

d)

$Magnification\ =\frac{v}{u}$

11.

Which of these is a characteristic of pinhole camera?

a)

A pinhole camera can record

b)

A pinhole camera cannot give details of an image

c)

A pinhole camera uses a lens

d)

A pinhole camera does need focussing.

12.

We can move at the speed of light.

a)

True

b)

False

13.

Light is a source of heat.

a)

True

b)

False

14.

Which are the two type of light sources?

a)

Artificial and Natural

b)

Natural and Invented

c)

Artificial and Not Artificial

d)

All of them

15.

How would you rate the quiz?

a)

⭐

b)

⭐⭐

c)

⭐⭐⭐

d)

⭐⭐⭐⭐

e)

⭐⭐⭐⭐⭐

Light

Total questions: 15

Worksheet time: 9mins

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