Physical quantities

Question 1

Unit of MASS

Answer 1

Kilograms

Question 2

Unit of LENGTH

Answer 2

Metre

Question 3

Unit of TIME

Answer 3

Second

Question 4

Unit of LUMINOUS INTENSITY

Answer 4

Candela

Question 5

Unit of ELECTRIC CURRENT

Answer 5

Ampere

Question 6

Unit of THERMODYNAMICS TEMPERATURE

Answer 6

Kelvin

Question 7

unit of QUANTITY OF SUBSTANCE

Answer 7

Mole

Question 8

Unit of AREA

Answer 8

Metre square

Question 9

Unit of volume

Answer 9

CUBIC METRE

Question 10

Unit of DENSITY

Answer 10

Density=mass/volume

Kilograms per cubic metre(kgm/3)

Question 11

Unit of SPEED/VELOCITY

Answer 11

Speed/velocity=distance/time

Metre per second (Ms/1)

Question 12

Unit of ACCELERATION

Answer 12

Acceleration=speed /time

Metre per second square(Ms/2)

Question 13

Unit of FORCE

Answer 13

Formula: MassXacceleration

Kilograms per metre per second or newton

Question 14

Unit of IMPULSE

Answer 14

Impulse= forceXtime

Kilograms metre per second (kgms/1) or newton per second

Question 15

Unit of Momentum

Answer 15

Mass x velocity.

Kilogram meter per second or newton second

Question 16

Unit of surface tension

Answer 16

Force/length or 1/2force/length

Kilogram metre per square per second square

Question 17

Unit of pressure

Answer 17

Force/ area

Kilograms per meter cubic per second second square (kgm/3s/2) or newton per meter square(Nm/2)

Question 18

Unit of Energy/work

Answer 18

Workdone=Force X distance cos?
Energy
*KE=1/2mv2
*P.E=mgh

Newton meter(Nm) or joule

Question 19

Unit of power / radiant Flux

Answer 19

Power=work/time
=ForceXdistance /time

Watt(W)

Question 20

Yotta Y

Answer 20

10^24

Question 21

Zetta Z

Answer 21

10^21

Question 22

Exa E

Answer 22

10^18

Question 23

Peta P

Answer 23

10^15

Question 24

Tera T

Answer 24

10^12

Question 25

Giga G

Answer 25

10^9

Question 26

Mega M

Answer 26

10^6

Question 27

Kilo

Answer 27

10^3

Question 28

Hecto H

Answer 28

10^2

Question 29

Deca

Answer 29

10

Question 30

Deci d

Answer 30

10^-1

Question 31

Centi c

Answer 31

10^-2

Question 32

Milli m

Answer 32

10^-3

Question 33

Micro

Answer 33

10^-6

Question 34

Nano n

Answer 34

10^-9

Question 35

Pico

Answer 35

10^-12

Question 36

Femto f

Answer 36

10^-15

Question 37

Atto a

Answer 37

10^-18

Question 38

Zepto z

Answer 38

10^-21

Question 39

Yocto y

Answer 39

10^-24

Question 40

1km is equal to

Answer 40

0.621 mile

Question 41

1 inch is equal to

Answer 41

2.54 cm

Question 42

1 metre is equal to

Answer 42

1.0936 yards

Question 43

1 mile is equal to

Answer 43

1.609 km

Question 44

1 mile is equal to

Answer 44

5280 ft

Question 45

1 cm is equal to

Answer 45

0.3937 inch

Question 46

1Å(angstrom) is equal to

Answer 46

10^-10m