Free Printable weekly quiz

1.

What device is used to measure current?

a)

Voltmeter

b)

Ammeter

c)

Thermometer

d)

Altimeter

2.

In this circuit the bulbs are identical. The current in bulb A is 12 amps. What is the current in bulb B only?

a)

6

b)

8

c)

10

d)

12

3.

In this circuit the bulbs are identical. The current in bulb A is 12 amps. What is the total current in the circuit?

a)

12

b)

24

c)

36

d)

48

4.

To measure voltage for bulb B, a voltmeter must be set up in...

a)

series

b)

parallel

5.

What device is used in household circuits to stop them from overloading and causing a fire

a)

Resistor

b)

Fuse

c)

Ammeter

d)

Voltmeter

6.

In this circuit, if you added another bulb beneath bulb B the brightness of the bulbs would...

a)

stay the same

b)

get dimmer

c)

get brighter

7.

When one stands in front of the mirror, the image is ______.

a)

virtual

b)

real

c)

inverted upside down

d)

transmitted

8.

Reflection from a smooth surface is called__________.

a)

specular reflection

b)

diffuse scattering

c)

virtual reflection

d)

plane reflection

9.

What is i ?

a)

Angle of reflection

b)

Angle of incidence

c)

Scattering angle

d)

Virtual angle

10.

Which of the following statement is correct on looking at a flat or plane mirror ?

a)

The object and image is of same shape and size.

b)

The left and right of the object and image appeared swapped.

c)

The light will be reflected regularly.

d)

The reflection will be scattered.

11.

The splitting of light with a prism is known as _____.

a)

refraction

b)

reflection

c)

dispersion

d)

diffuse scattering

12.

The image forms on the retina is _____.

a)

inverted (upside down)

b)

real

13.

The muscular diaphragm that controls the size of the pupil is

a)

Cornea

b)

Ciliary muscles

c)

Iris

d)

Retina

14.

At noon the sun appears white as [NCERT Exemplar Problems]

a)

light is least scattered

b)

all the colours of the white light are scattered away

c)

blue colour is scattered the most

d)

red colour is scattered the most

15.

The danger signals installed at the top of tall buildings are red in colour. These can be easily seen from a distance because among all other colours, the red light

a)

moves fastest in air

b)

is absorbed the most by smoke or fog

c)

is scattered the least by smoke or fog

d)

is scattered the most by smoke or fog

16.

When light rays enter the eye, most of the refraction occurs at the

a)

Pupil

b)

Iris

c)

outer surface of the cornea

d)

crystalline lens

17.

Scattering of light by colloidal solution is known as

a)

Scattering

b)

Dispersion

c)

Tyndall effect

d)

Stability

18.

The lens of your eye is convex. Because of this, what happens to light as it passes through the lens?

a)

Light is absorbed.

b)

Light is reflected.

c)

Light is refracted.

d)

Light is transmitted.

19.

The deflection of light by minute particles and molecules of the atmosphere in all direction is called ____________ of light.

a)

scattering

b)

interference

c)

tyndell effect

d)

Reflection

20.

Advanced sunrise and delayed sunset is due to

a)

Scattering of light

b)

Atmospheric refraction

c)

dispersion of light

d)

reflection of light

21.

What is the time difference between actual sunset and apparent sunset ?

a)

2 seconds

b)

20 seconds

c)

2 minutes

d)

20 minutes

22.

Having two eyes facilitates in

A : Increasing the field of view

B : Bringing three-dimensional view

C : Developing the concept of distance/ size

Then the correct option is/are

a)

A only

b)

A and B only

c)

B only

d)

A, B and C

23.

Near and far points of a young person normal eye respectively are

a)

0 and infinity

b)

0 and 25 cm

c)

25 cm and infinity

d)

25 cm and 150 cm

24.

The ability of eye lens to adjust its focal length to form a sharp image of the object at varying distances on the retina is called____________________

a)

Power of observation of the eye

b)

Power of accommodation of the eye

c)

Power of adjustment of the eye

d)

Power of enabling of the eye

25.

A person cannot see distinctly objects kept beyond 2 m. This defect can be corrected by using a lens of power

a)

+ 0.5 D

b)

- 0.5 D

c)

+ 0.2 D

d)

- 0.2 D

26.

The light sensitive cell present on retina and is sensitive to the intensity of light is:

a)

Cones

b)

Both rods and cones

c)

Rods

d)

none of above

27.

What kind of lens is present in the human eye ?

a)

Convex lens

b)

Concave Lens

28.

What is the function of the lens in the human eye ?

a)

Eye lens changes its shape and thickness to focus light on to the retina.

b)

Pupil expands or contracts according to the intensity of light around the eye.

c)

The pupil of our eye contracts.

29.

What job does the pupil of the eye do ?

a)

Eye lens changes its shape and thickness to focus light on to the retina.

b)

Pupil expands or contracts according to the intensity of light around the eye.

c)

The pupil of our eye contracts.

30.

Name the part of the retina which is insensitive to light.

a)

cornea

b)

eye-lens.

c)

iris

d)

retina

e)

Blind spot

31.

What is the measure of the side of the triangle that is adjacent to angle A

a)

13

b)

12

c)

5

d)

not enough information given

32.

What is the SINE ratio of any angle in a right triangle

a)

$\frac{\text{adjacent}}{\text{hypotenuse}}$

b)

$\frac{\text{opposite}}{hypotenuse}$

c)

$\frac{\text{opposite}}{\text{adjacent}}$

d)

$\frac{\text{hypotenuse}}{\text{opposite}}$

33.

What is the COSINE ratio of any angle in a right triangle

a)

$\frac{\text{adjacent}}{\text{hypotenuse}}$

b)

$\frac{\text{opposite}}{hypotenuse}$

c)

$\frac{\text{opposite}}{\text{adjacent}}$

d)

$\frac{\text{hypotenuse}}{\text{opposite}}$

34.

What is the TANGENT ratio of any angle in a right triangle

a)

$\frac{\text{adjacent}}{\text{hypotenuse}}$

b)

$\frac{\text{opposite}}{hypotenuse}$

c)

$\frac{\text{opposite}}{\text{adjacent}}$

d)

$\frac{\text{hypotenuse}}{\text{opposite}}$

35.

"θ" is used to represent an unknown ____________.

a)

angle

b)

side

c)

hypotenuse

36.

What is sin(A) ?

a)

$\frac{12}{37}$

b)

$\frac{12}{35}$

c)

$\frac{35}{37}$

d)

$\frac{35}{12}$

37.

What is cos(A) ?

a)

$\frac{12}{37}$

b)

$\frac{12}{35}$

c)

$\frac{35}{37}$

d)

$\frac{35}{12}$

38.

Cos(Z)=

a)

$\frac{\text{15}}{\text{17}}$

b)

$\frac{\text{8}}{\text{17}}$

c)

sin(x)

d)

tan(z)

39.

sin(A) = ?

a)

$\frac{20}{21}$

b)

$\frac{20}{29}$

c)

cos(A)

d)

cos(C)

40.

The formula $A=2\pi rh$ gives you:

a)

the volume of a sphere

b)

the curved surface area of a cylinder

c)

the volume of a cylinder

d)

the area of a circle

41.

Two versions of the formula for the area of a trapezium are:

a)

$A\ =\ \frac{1}{2}bh$

b)

$A\ =\ \frac{1}{2}\left(a+b\right)h$

c)

$A\ =\ \frac{a+b}{2}\times h$

d)

$A=\frac{1}{2}\pi r^2$

42.

Which of these is Pythagoras' Theorem?

a)

$a^2=\left(b+c\right)^2$

b)

$a^2=b^2+c^2$

c)

$a=b+c$

d)

$a^2=bc^2$

43.

The quadratic formula is:

a)

$x=\frac{2b\pm\sqrt{b^2-4ac}}{2a}$

b)

$x=\frac{a\pm\sqrt{b^2-ac}}{2a}$

c)

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

d)

$x=\frac{-b\pm\sqrt{b^2+4ac}}{2a}$

44.

What is this called?

a)

Chord

b)

Minor arc

c)

Secant

d)

Diameter

45.

What is the length L called?

a)

major arc

b)

tangent

c)

minor arc

d)

sector

weekly quiz

Total questions: 45

Worksheet time: 23mins

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