Symbols and Units

Question 1

What is the symbol for angular displacement?

Answer 1

θ

Question 2

What is the unit of angular displacement?

Answer 2

Radians (rad)

Question 3

What is the symbol for initial angular velocity?

Answer 3

ω₀

Question 4

What is the symbol for angular velocity?

Answer 4

ω

Question 5

What is the unit of angular velocity?

Answer 5

radians per second (rad s^-1)

Question 6

What is the symbol for angular acceleration?

Answer 6

α

Question 7

What is the unit of angular acceleration?

Answer 7

Radians per second squared (rad s^-2)

Question 8

What is the symbol for tangential speed?

Answer 8

v

Question 9

What is the unit of tangential speed?

Answer 9

metres per second (ms^-1)

Question 10

What is the symbol for tangential acceleration?

Answer 10

a_t

Question 11

What is the unit of tangential accleration?

Answer 11

metres per second squared (ms^-2)

Question 12

What is the symbol for centripetal acceleration?

Answer 12

ar

Question 13

What is the unit of centripetal accleration?

Answer 13

metres per second squared (ms^-2)

Question 14

What is the symbol for moment of inertia?

Answer 14

I

Question 15

What is the unit of moment of inertia?

Answer 15

Kilogram metres squared (kg m²)

Question 16

What is the symbol for torque?

Answer 16

τ

Question 17

What is the unit of torque?

Answer 17

Newton metres (Nm)

Question 18

What is the symbol for angular momentum?

Answer 18

L

Question 19

What is the unit of angular momentum?

Answer 19

Kilogram metres squared per second (kg m² s^-1)

Question 20

What is the symbol for angular frequency?

Answer 20

ω

Question 21

What is the unit of angular frequency?

Answer 21

radians per second (rad s^-1)

Question 22

What is the symbol for gravitational potential?

Answer 22

V

Question 23

What is the unit of gravitational potential?

Answer 23

Joules per kilogram (J kg^-1)

Question 24

What is the symbol for luminosity?

Answer 24

L

Question 25

What is the unit of luminosity?

Answer 25

Watts (W)

Question 26

What is the symbol for apparent brightness?

Answer 26

b

Question 27

What is the unit of apparent brightness?

Answer 27

Watts per square metre (W m^-2)

Question 28

What is the symbol for magnetic induction (magnetic field strength)?

Answer 28

B

Question 29

What is the unit of magnetic induction (magnetic field strength)?

Answer 29

Tesla (T)

Question 30

What is the symbol for phase angle?

Answer 30

Φ

Question 31

What is the unit of phase angle?

Answer 31

Radians (rad)

Question 32

How many joules of energy are in one electron-volt?

Answer 32

1.6 x 10^-19 J