Physical Units/ SI units

Question 1

Length (quantity and SI unit)

Answer 1

L or l

m (metre)

Question 2

Distance (quantity and SI unit)

Answer 2

s

m (metre)

Question 3

Thickness of wire (quantity and SI unit)

Answer 3

d

m (metre)

Question 4

Wavelength (quantity and SI unit)

Answer 4

λ

m (metre)

Question 5

Mass (quantity and SI unit)

Answer 5

M or m

kg (kilogram)

Question 6

Time (quantity and SI unit)

Answer 6

t

s (second)

Question 7

Period (quantity and SI unit) and definition

Answer 7

T
s (second)
time it takes for one full cycle of a wave to pass through a certain point

Question 8

Temperature (quantity and SI unit)

Answer 8

T

K (kelvin)

Question 9

Current (quantity and SI unit)

Answer 9

I

A (amps)

Question 10

Potential Difference (quantity and SI unit)

Answer 10

V

V

Question 11

Area (quantity and SI unit)

Answer 11

A

m^2

Question 12

Density (quantity and SI unit)

Answer 12

ρ (rho NOT p)

kgm^-3

Question 13

Force (quantity and SI unit)

Answer 13

F

N (newton)

Question 14

Initial/Final Velocity (quantity and SI unit)

Answer 14

initial- u final- v

ms^-1

Question 15

Kinetic Energy (quantity and SI unit)

Answer 15

Ek (k in subscript)

J

Question 16

Work Done (quantity and SI unit)

Answer 16

W

J (joule)

Question 17

Power (quantity and SI unit)

Answer 17

P

W (watt)

Question 18

Luminosity (quantity and SI unit)

Answer 18

L

W (watt)

Question 19

Frequency (quantity and SI unit)

Answer 19

f

Hz

Question 20

Charge (quantity and SI unit)

Answer 20

Q

C (coulomb)

Question 21

Resistance (quantity and SI unit)

Answer 21

R

ohms

Question 22

Electromotive force (quantity and SI unit) and definition

Answer 22

ϵ
V
electrical action produced by a non-electrical source

Question 23

Resistivity (quantity and SI unit)

Answer 23

ρ (rho NOT p)

Ωm (ohmmeters)

Question 24

Work Function (quantity and SI unit) and definition

Answer 24

Φ
J
amount of energy required to release a photoelectron to escape a metal’s surface

Question 25

Momentum (quantity and SI unit)

Answer 25

p

kgms^-1

Question 26

Specific charge (quantity and SI unit)

Answer 26

no unit

Ckg^-1 (coulomb per kilogram )

Question 27

Planck’s constant (quantity and SI unit)

Answer 27

h

Js (joule seconds)

Question 28

Gravitational Field Strength (quantity and SI unit)

Answer 28

g

Nkg^-1