Physics Test 11

Total Questions: 26

1 - A point where an applied force causes the system to move

A ) Centre of gravity
B ) Centre of mass ✅
C ) Centre of body
D ) Centre of axis

3 - Sin is equal to

A ) Base/ perpendicular
B ) Base/ Hypotenuse
C ) Perpendicular/Base
D ) Perpendicular/ Hypotenuse ✅

4 - The centre of gravity of irregular shaped body can be found with help of

A ) Wedgy
B ) Metre rod
C ) Plumb line ✅
D ) Screw gauge

5 - A body is in equilibrium when its

A ) Acceleration is zero ✅
B ) Speed is uniform
C ) Acceleration is uniform
D ) Speed and acceleration uniform

6 - The centre of gravity shaped body can be found with help of

A ) Middle point on its axis
B ) Centre of the cylinder
C ) Centre of plate
D ) The point of intersection of medians

8 - The centre gravity of uniform ____ sheet is the point of intersection of its diagonals.

A ) Triangle sheet
B ) Solid cylinder
C ) Circular ring
D ) Square

9 - Sin 45° is equal to

A ) 0
B ) 0.5
C ) 0.707
D ) 1

10 - Centre of gravity of sphere is at

A ) Centre of sphere
B ) Outside of sphere
C ) Radius of sphere
D ) None of these

11 - Complete equation Fv/Fx

A ) Sin ∅
B ) Cos ∅
C ) Cosec
D ) tan∅

12 - A body is in neutral equilibrium when its center of gravity

A ) Is at its highest position
B ) Is at the lowest position
C ) Keeps its height of displaced ✅
D ) Is situated at its bottom

13 - The centre of gravity of a triangle is at

A ) Centre
B ) Centre of axis
C ) Point of intersection of medians ✅
D ) Point of intersection of diagonals

14 - 60° =____

A ) 0.5 ✅
B ) 1.732
C ) 0.866
D ) 0.577

15 - A couple is formed by

A ) Two forces perpendicular to each other
B ) Two like parallel forces
C ) Two equal and opposite forces not in same line ✅
D ) Two equal and opposite forces in the same line

18 - The formula of torque is

A ) L= F×E
B ) E= F×T
C ) t = F×L ✅
D ) E= F×L

19 - Two equal but unlike parallel forces having different line of action produce

A ) a torque
B ) a couple ✅
C ) equilibrium
D ) Neutral equilibrium

20 - The states of equilibrium are

A ) 2
B ) 3 ✅
C ) 4
D ) 5

21 - The forces that are parallel to each other and have the same direction are called

A ) Like parallel force ✅
B ) Unlike parallel forces
C ) Resultant forces
D ) Net forces

22 - The parallel forces which are same in direction are called

A ) Like paralled forces ✅
B ) Unlike parallel forces
C ) Paralled forces
D ) None of these

23 - The parallel forces which are opposite in direction are called

A ) Like paralled forces
B ) Unlike parallel forces ✅
C ) Paralled forces
D ) None of these

24 - Vector can be added graphically by ___

A ) Head to tail rule ✅
B ) Left hand rule
C ) Right hand rule
D ) None of these

25 - The ratio b/w perpendicular and hypotenuse is called

A ) Sin ∅ ✅
B ) Cos ∅
C ) Tan ∅
D ) Cot ∅

26 - Perpendicular/Base=____

A ) Sin∅
B ) Cos∅
C ) Tan∅ ✅
D ) Cot∅