SI Units

Question 1

What is the symbol and units for energy or work done?

Answer 1

W and joules

Question 2

What is the equation for work done?

Answer 2

W = F x length

Question 3

What is the symbol and units for mass?

Answer 3

m and Kg

Question 4

What is the symbol and units for length?

Answer 4

l and meters

Question 5

What is the symbol and units for time?

Answer 5

t and seconds

Question 6

What is the symbol and unit for electrical current?

Answer 6

I and ampere/A

Question 7

What is the symbol and unit for velocity?

Answer 7

u and m/s

Question 8

What is the symbol and unit for acceleration?

Answer 8

a and m/s²

Question 9

What is the symbol and unit for angular velocity?

Answer 9

w and rad/s
radian per second

Question 10

What is the symbol and unit for force?

Answer 10

F and newtons/N

Question 11

What is the equation for force?

Answer 11

F = m x a

Question 12

What is the symbol and unit for weight?

Answer 12

m and Kg

Question 13

What is the symbol and unit for power?

Answer 13

P and W/watts

Question 14

What is the equation for power?

Answer 14

P = W/t
Power = workdone in joules/ time

Question 15

What is the equation for efficiency?

Answer 15

energy output in given time/ energy input in same amount of time

Question 16

What is the symbol and unit for charge?

Answer 16

Q and Coulombs

Question 17

What is the symbol and unit for potential difference?

Answer 17

Pd and volts

Question 18

What are the units for emf?

Answer 18

Volts