Question 1

eg. What is the capital of france?

Accepted Answer

eg. Paris

Answer

Amsterdam

Answer

London

Answer

Rome

Question 2

Unwanted or unpleasant sounds are known as   ____.

Accepted Answer

noise

Answer

yawn

Answer

laugh

Answer

music

Question 3

Large empty room often sounds _______.

Accepted Answer

hollow

Answer

repeating

Answer

noisy

Answer

full

Question 4

In concert halls, soft materials and carpets are used to ______ sound waves.

Accepted Answer

absorb

Answer

increase

Answer

refract

Answer

retract

Question 5

Sound is measured by units that are called

Accepted Answer

Decibels (dB)

Answer

Hertz(Hz)

Answer

Meters (m)

Answer

Pascal (Pa)

Question 6

Like light, sound cannot pass through  _______.

Accepted Answer

vacuum

Answer

solid

Answer

air

Answer

liquids

Question 7

Distance between two points of a wave in a phase is known as  __.

Accepted Answer

wavelength

Answer

frequency

Answer

amplitude

Answer

wave  front

Question 8

An example of longitudinal wave is   _______.

Accepted Answer

slinky spring

Answer

water wave

Answer

energy

Answer

light

Question 9

The forces that act between particles within an object give it _____.

Accepted Answer

form and shape

Answer

all of the above

Answer

gravity

Answer

depth

Question 10

'Eardrum' bursts at   _______.

Accepted Answer

160 dB

Answer

40 db

Answer

80 db

Answer

320 db

Question 11

Level of sound of normal conversation is   _______.

Accepted Answer

60 dB

Answer

20 db

Answer

10 db

Answer

50 db

Question 12

Loud noise can   _______.

Accepted Answer

damage our ears

Answer

make us ill

Answer

interrupt conversation

Answer

disturb our sleep

Question 13

Height of a wave is known as   _______.

Accepted Answer

amplitude

Answer

space of sound

Answer

volume

Answer

wave front

Question 14

Sound is a form of   _______.

Accepted Answer

energy

Answer

light

Answer

force

Answer

power

Question 15

If frequency increases, ____also increases.

Accepted Answer

waves

Answer

amplitude

Answer

crest

Answer

wavelength

Question 16

Organs of a human that detect sounds are   _______.

Accepted Answer

ears

Answer

hands

Answer

eyes

Answer

feet

Question 17

Echoes are formed when sound strikes  a wall and _______.

Accepted Answer

reflects

Answer

absorbed

Answer

breaks

Answer

repeatedly

Question 18

Part of sound wave where air pressure is greater, is known as   ____.

Accepted Answer

compression

Answer

expansion

Answer

consolation

Answer

rarefaction

Question 19

Light travels as   ____ speed as  of sound.

Accepted Answer

faster

Answer

slower

Answer

different

Answer

the same

Question 20

Parts of sound waves where air pressure is lesser, is known as   ___.

Accepted Answer

rarefaction

Answer

consolation

Answer

expansion

Answer

compression

Question 21

Sound travels fastest in solids because the  particles are ___.

Accepted Answer

closely packed

Answer

collide

Answer

vibrate

Answer

move fast

Question 22

A wave with ups and downs is known as   _______wave.

Accepted Answer

transverse

Answer

horizontal

Answer

latitude

Answer

longitudinal

Question 23

Wave with compressions and rarefactions is known as   _______.

Accepted Answer

longitudinal

Answer

transverse

Answer

latitude

Answer

horizontal

Question 24

Splitting of white light in to its component colors is called   _______.

Accepted Answer

dispersion

Answer

reflection

Answer

refraction

Answer

difussion

Question 25

When light is refracted through glass prism it will give   ____ colors.

Accepted Answer

rainbow

Answer

cool

Answer

secondary

Answer

primary

Question 26

Way of light is always in a   _______ path.

Accepted Answer

straight

Answer

divergent

Answer

convergent

Answer

bend

Question 27

Speed of light in a vacuum is   _______.

Accepted Answer

300000000 m/s

Answer

400000000 m/s

Answer

600000000 m/s

Answer

900000000 m/s

Question 28

Change in a direction or bending of light  from onemedium to another  is called   ___.

Accepted Answer

refraction

Answer

diffusion

Answer

dispersion

Answer

reflection

Question 29

Materials which allow all light to pass through them are called

Accepted Answer

transparent

Answer

translucent

Answer

semi absorbent

Answer

opaque

Question 30

Materials which do not allow any light to pass through them are called   _______.

Accepted Answer

opaque

Answer

translucent

Answer

transparent

Question 31

If a substance is hot, its particles will   ____ than cooler objects.

Accepted Answer

move fast

Answer

move slow

Answer

move fast / slow

Answer

move the same

Question 32

Heat of sun that travels through vacuum is known as_____ heat.

Accepted Answer

radiant

Answer

infrared

Answer

convective

Answer

conductive

Question 33

Hotness or coldness of an object is known as   _______.

Accepted Answer

temperature

Answer

pressure

Answer

thermal energy

Answer

thermometer

Question 34

An example of good insulator of heat is   _______.

Accepted Answer

wood

Answer

gold

Answer

iron

Answer

zinc

Question 35

Weather is an example of   _____ current.

Accepted Answer

convection

Answer

air

Answer

conduction

Answer

radiation

Question 36

A perfectly empty 'space' without air is known as   _______.

Accepted Answer

vacuum

Answer

hydrosphere

Answer

exosphere

Answer

lithosphere

Question 37

An example of good conductor of heat is   _______.

Accepted Answer

copper

Answer

plastic

Answer

rubber

Answer

glass

Question 38

Transfer of heat in solids with presence of medium is known as   ____.

Accepted Answer

conduction

Answer

convection

Answer

radiation

Answer

excursion

Question 39

A force which opposes motion is known as   _______.

Accepted Answer

friction

Answer

push

Answer

pull

Answer

gravity

Question 40

Force can make a stationary object to   _______.

Accepted Answer

move

Answer

still

Answer

spin

Answer

rotate

Question 41

Force of friction can be reduced by help of   _______.

Accepted Answer

all of them

Answer

ball bearings

Answer

cushion surfaces

Answer

lubricants

Question 42

Relationship between force,mass and acceleration is   ____.

Accepted Answer

F= a/m

Answer

F= m/a

Answer

F= a-m

Answer

F= am

Question 43

If an object is at rest, forces acting on it, are   _______.

Accepted Answer

balanced

Answer

higher

Answer

lower

Answer

unequal

Question 44

A car covers a distance of 5 km in 5 min  , its speed  ___.

Accepted Answer

none of the above

Answer

6 km/h

Answer

25 km/h

Answer

1 km/h

Question 45

Speed is defined as   _______.

Accepted Answer

all of the above

Answer

rate of change of distance

Answer

distance move per unit time

Answer

change of distnce with respect to time

Question 46

Velocity is a measure of   _______.

Accepted Answer

all of the above

Answer

change in position during a change in time

Answer

slope of a position time graph

Answer

displacement during an interval of time.

Question 47

A car moves from 0 to 25 m/s in 5 s. What is the A of the car?

Accepted Answer

5 m/s2

Answer

50 m/s2

Answer

30 m/s2

Answer

125 m/s2

Question 48

Which driving surface would provide the greatest friction?

Accepted Answer

dry pavement

Answer

steel

Answer

ice

Answer

wet pavement

Question 49

In an accident, the distance a passenger is thrown from a moving car is related to

Accepted Answer

speed of the car before it collided with other object

Answer

the size of the object that the car colides with

Answer

car's acceleration before the collision

Answer

mass of the car

Question 50

“ You push against the floor when you walk , the floor pushes back on you.”

Accepted Answer

third law of motion

Answer

all of the above

Answer

first law of motion

Answer

second law of motion

Question 51

The unit of acceleration in the SI system is ______.

Accepted Answer

m/s2

Answer

m/s

Answer

in/s

Answer

m/min

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