Atomic and Nucleal

Question 1

What is an Isotope?

Answer 1

Atoms with the same number of protons (atomic number) but a different number of neutrons(mass number)

Question 2

What is the meaning of half life/

Answer 2

the time taken for it’s radioactivity of a undecayed nuclei to decrease to half it’s original value

Question 3

What is the definition of the centre of gravity

Answer 3

Where the objects weight acts

Question 4

What is the equation for kinetic energy?

Answer 4

EK= 0.5 X m X v2

Question 5

What is the equation for gravitational potential?

Answer 5

EP= m X g X h

Question 6

What is the equation for work done?

Answer 6

w= f X d

Question 7

What is the equation for power?

Answer 7

e
p= —–
t

Question 8

What is the equation for moments?

Answer 8

m= F X d

Question 9

What is the equation for principle of moments?

Answer 9

f1 X d1 = f2 X d2

Question 10

What is the equation for speed?

Answer 10

d s= d/t
s t

Question 11

What is the equation for average velocity

Answer 11

v + u/ 2

Question 12

What is the equation for ROCOS?

Answer 12

final -initial / t

Question 13

What is the equation for Average speed?

Answer 13

Final+Initial / 2

Question 14

What is the equation for acceleration?

Answer 14

v - u
a= ———–
t

Question 15

What is the equation for resulting forces?

Answer 15

F = m X a

Question 16

What is the equation for weight?

Answer 16

w= m X g (10)

Question 17

What is the equation for pressure?

Answer 17

p = f / a

Question 18

What is the equation for gradient?

Answer 18

run