Physics Test 145

Result

Physics Test 145

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
4 / -1

A physical quantity have the same dimension as that of

A

B

C

D

Solution
Question 2
4 / -1

The force which can be attractive and repulsive depending on the distance between the interacting particles is

A
gravitational force

B
weak force

C
electromagnetic force

D
strong force

Solution
Question 3
4 / -1

A ball thrown vertically upwards with an initial velocity of 8 ms^-1returns in The total displacement of the ball is

A
12 m

B
5.34 cm

C
zero

D
24 m

Solution

Initial and final position of ball is same. Hence, the displacement of the ball is zero.
Question 4
4 / -1

The position of a particle moving along X-axis depends on time in accordance with following equation Then, dimensions of a and b are respectively

A

B

C

D

Solution
Question 5
4 / -1

A body whose momentum is constant must have constant

A
force

B
acceleration

C
velocity

D
displacement

Solution

As we know, momentum

= mass × velocity

Since, mass is constant, then constant momentum means the velocity of the body is constant.
Question 6
4 / -1

The mud guards over the wheels of a car works on the basis of

A
inertia of rest

B
inertia of motion

C
inertia of direction

D
None of these

Solution

Wheels rotate at high speed and mud sticking to the wheel flies off tangentially due to inertia of direction.
Question 7
4 / -1

The mass of a body weighing 100 dyne is

A
10^-1 g

B
10^-2 g

C
10 g

D
100 g

Solution
Question 8
4 / -1

The force acting on a body, whose linear momentum changes by in 10 s is

A
100 N

B
200 N

C
2 N

D
½ N

Solution
Question 9
4 / -1

Centre of mass of a body coincide with the geometrical centre of the body, when body has a

A
uniform motion

B
uniform mass density

C
uniform momentum

D
uniform acceleration

Solution

Centre of mass of a body coincide with the geometrical centre of the body, when body has a uniform mass density and hence a regular shape.
Question 10
4 / -1

The moment of linear momentum is called

A
torque

B
couple

C
angular momentum

D
None of these

Solution

Angular momentum is the rotational equivalent to linear momentum.