Question

give correct answer ⬇✅​

Answer 1

Answers

1) Work is product of Force and Displacement

• Answer is option b as we know that Force = F×s. When a force of F Newtons is applied to move a body for a displacement of s then it is said that work is done

2) Joule is the unit of Work

• Unit of Force is Newton
• Unit of Power is Watt
• Unit of Speed is m/s

3) The electronic configuration of Na is 2,8,1

• Atomic number of Na is 11 so it will be distributed like 2 in the first shell then 8 in the second and the remaining 1 in the Third shell

4) The pH scale ranges from 1 to 14

• Any substance with a pH above 7 is basic anything below 7 is acidic and 7 shows that it is neutral

5) Work done can be positive negative or zero

• It is as per the direction in which the force is applied or on which direction the body moves

Answer 2

1) = b, force and displacement

2) = b, work

3) = a, 2,8,1

4) = b, 14

5) = c, can be positive negative and zero