Question

question - 1. what does the area of a velocity graph give
a) distance
b) acceleration
c) displacement
d) none of these
question - 2. the si unit of force is similar to the si unit of
a) power
b) mass
c) weight
d) energy
question - 3. write the following actions a force can do
a) can move a stationary object
b) can stop a moving object
c) can change the speed o if a moving object
d) all of the above
question - 4. cell wall is mainly composed of
a) glucose
b) fructose
c) sucrose
d) cellulose
question - 5. which of the following is correct electronic configuration of sodium
a) 2,8
b) 2,8,1
c) 8,2,1
d) 2,1,8

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Answer 1

$\huge\underline\mathrm\purple{Answer}$

Ques 1)

c). displacement

Ques 2)

c). weight

Ques 3).

d). all of the above

Ques 4).

d). cellulose

Ques 5).

b). 2,8,1

Answer 2

1.The slope of Velocity-Time graph represents acceleration of the object. The area under Velocity-Time graph represents displacement.

2.(b)mass

3.c) can change the speed o if a moving object

4.(d) cellulose

5.Therefore the correct electronic configuration of sodium is 2, 8, 1 where K shell has 2 electron, L shell has 8 electrons, M shell has 18 electrons.