#### 11th Standard Physics English Medium Free Online Test Creative 1 Mark Questions

11th Standard

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Physics

Time : 00:10:00 Hrs
Total Marks : 10

10 x 1 = 10
1. The word scientia is meaning to ___________.

(a)

exact

(b)

to know

(c)

control

(d)

implement

2. Which one of the following satatement is true?

(a)

A scalar quantity is conserved in a process

(b)

A scalar quantity does not vary from one point to another in apace

(c)

A scalar quantity can never take -ve values

(d)

A scalar quantity has only magnitude and no direction.

3. A ball is thrown vertically upward. It is a speed of 10 m/s. When it has reached one half of its maximum height. How high does the ball rise? (g = 10 ms-2)

(a)

7 m

(b)

10 m

(c)

12 m

4. A rocket with a lift off mass 2.5 $\times$ 104kg is blast upward with an initial acceleration of 5m/s2Then the initial thrust of the blast is

(a)

1.75 $\times$105N

(b)

7 $\times$105N

(c)

37.5$\times$ 105N

(d)

14 $\times$105N

5. A body of mass 3 kg hits a wall at an angle of 60° and returns at the same angle. The impact time was 0.2 sec. The force exerted on the wall

(a)

150$\sqrt { 3 }$ N

6. The velocity with which a gun suddenly moves backward after firing is

(a)

linear velocity

(b)

positive velocity

(c)

recoil velocity

(d)

v1 + v2

7. A particle with total energy E is moving in a potential energy region U(x). Motion of the particle is restricted to the region when

(a)

U(x) < E

(b)

U(x) = 0

(c)

U(x) $\le$ E

(d)

U(x) > E

8. A solid sphere is rotating in free space. If the radius of the sphere is increased keeping mass same, which one of the following will not be affected?

(a)

M.I

(b)

Angular momentum

(c)

Angular velocity

(d)

Rotational K.E.

9. Rotational kinetic energy can be calculated by using

(a)

$\frac { 1 }{ 2 }$2

(b)

$\frac { L^{ 2 } }{ 2I }$

(c)

$\frac { 1 }{ 2 } L\omega$

(d)

all the above

10. Two spherical balls of mass 10hg are placed 10cm apart. Find gravitational force of attraction between them

(a)

the earth does not attract the objects in a satellite

(b)

the normal force by chair on the person balances the earth attraction

(c)

the normal force is zero

(d)

the person in sattelite is not accelerated