ICS Part 1 Physics English Medium Chapter 2 Online Short Questions Test with Answers

Question # 1

Define and explain the scalar product?

Ans 1:

Question # 2

Explain why do buses and heavy trucks have large steering wheels ?

Ans 1: We know that the magnitude of torque depends upon the moment arm and applied force T = r* f
Show that to produce greater torque with a less applied force, the value of moment arm 'r' must be taken as larger due to greater torque, we can turn the heavy trucks and buses have large steering wheels to produce greater torque and to make the drive more easy.

Question # 3

Define and explain position vector ?

Ans 1:

Question # 4

Two vectors have unequal magnitude.Can their components be equal in magnitude?

Ans 1: No, the components of two vectors cannot be equal in magnitude if the two vector have unequal magnitudes.

Question # 5

Define the following?
Parallel vectors
Equal vectors
null vectors
Anti parallel vectors
Negative of a vectors

Ans 1: Parallel Vectors:Vectors are said to be parallel to each other if they are acting in the same direction.
Anti Parallel Vectors:Vectors are said to be anti parallel to each other if they are acting in opposite direction.
Equal vectors:Two vectors are said to be equal, if they have the same magnitude and same direction.
Negativeof a vector:Negative of a vector is that vector whose magnitude is the same to that of the given vector but opposite in direction.
Null Vector:A vectors whose magnitude is zero is known as null vector.

Question # 6

State condition of rotational equilibrium.

Ans 1: The vector sum of all torque acting on any object must be zero.
When this condition of equilibrium is satisfied, there is no angular acceleration and body will be in rotational equilibrium.Hence, a body cannot rotate about center of gravity under the action of its weight.

Question # 7

What is the minimum number of unequal vector in to a null vector?

Ans 1: The minimum number of unequal vector to result in to a null vector must be three. If we add three vector of unequal magnitude in such a way that they forms the sides of a triangle, then their resultant must be zero.
In the given figure three vectors A, B, and C are added according to head to tail rule and they form the side of a triangle. Now for getting their resultant, we will combine the tail of A with the head of C which already coincides each other. Thus we get a null vector or zero vector as a resultant
R= A+B+C = 0

Question # 8

What do you mean by concurrent force ? Explain with examples ?

Ans 1: Concurrent Force:Two or more than two force are said to be concurrent force, If they are acting upon a body and their lines of action passes through a common point.Explanation:Consider a bulb which is suspended by means of a thread from a rigid support In this case the weight 'w' of the bulb is acting in down wards direction while the tension 'T' in the thread is acting of both forces passes through the same point or common point. Both forces balance each other and as a a result the bulb remain the state of equilibrium such force are know as concurrent forces.

Question # 9

The vector sums of three vectors give a null vector. What can be orientation of the vectors?

Ans 1: If the three vectors are oriented in cyclic order i.e in the form of triangle, then they will give rise to null vector.

Question # 10

Explain with the help of an example what is the rang of possible values of the resultant of two vector ?

Ans 1:

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ICS Part 1 Physics English Medium Chapter 2 Online Short Questions Test with Answers

Online Short Questions For Chapter 2 "ICS Part 1 Physics Chapter 2 Short Questions Test "

Physics - ICS Part 1 Physics Chapter 2 Short Questions Test

Define and explain the scalar product?

Explain why do buses and heavy trucks have large steering wheels ?

Define and explain position vector ?

Two vectors have unequal magnitude.Can their components be equal in magnitude?

Define the following?Parallel vectorsEqual vectorsnull vectorsAnti parallel vectorsNegative of a vectors

State condition of rotational equilibrium.

What is the minimum number of unequal vector in to a null vector?

What do you mean by concurrent force ? Explain with examples ?

The vector sums of three vectors give a null vector. What can be orientation of the vectors?

Explain with the help of an example what is the rang of possible values of the resultant of two vector ?

Prepare Complete Set Wise Questions For Chapter 2 "ICS Part 1 Physics Chapter 2 Short Questions Test "

Set 1

Set 2

Set 3

Set 4

Set 5

ICS Part 1 Physics Chapter 2 Short Questions Test - Set 1

Define and explain the scalar product?

Explain why do buses and heavy trucks have large steering wheels ?

Define and explain position vector ?

Two vectors have unequal magnitude.Can their components be equal in magnitude?

Define the following?Parallel vectorsEqual vectorsnull vectorsAnti parallel vectorsNegative of a vectors

State condition of rotational equilibrium.

What is the minimum number of unequal vector in to a null vector?

What do you mean by concurrent force ? Explain with examples ?

The vector sums of three vectors give a null vector. What can be orientation of the vectors?

Explain with the help of an example what is the rang of possible values of the resultant of two vector ?

ICS Part 1 Physics Chapter 2 Short Questions Test - Set 2

Discuss the multiplication of a vector by a number?

When body is in .Translation equilibriumRotational equilibrium

Under what circumstances would a vector have components that are equal in magnitude?

Define null and equal vectors.

You are falling off the edge.What should you do to avoid falling?

Define and explain position vector ?

Differentiate between static and dynamic equilibrium.

Can a body rotate about its center of gravity under the action of its weight?

Define scalar and vector quantities?

The vector sums of three vectors give a null vector. What can be orientation of the vectors?

ICS Part 1 Physics Chapter 2 Short Questions Test - Set 3

Can a body rotate about its center of gravity under the action of its weight?

Define unit vector?

Discuss the condition of equilibrium?

Mention the criterion for positive and negative torque.

Discuss the addition of vector by rectangular component method?

Discuss the subtraction of vector ?

What are rectangular components of a vector?

Why can a body not rotate about its centre of gravity under the action of its weight?

What are rectangular components of a vector?

Two vectors have unequal magnitude. Can their sum be zero? Explain.

ICS Part 1 Physics Chapter 2 Short Questions Test - Set 4

Discuss the multiplication of a vector by a number?

What are rectangular components of a vector?

What do you mean by concurrent force ? Explain with examples ?

Explain why do buses and heavy trucks have large steering wheels ?

DIscuss the addition of vectors by graphical Method or geometrical Method?

When body is in .Translation equilibriumRotational equilibrium

Explain how cranes are able to light very heavy load without toppling ?

The vector sums of three vectors give a null vector. What can be orientation of the vectors?

Define Torque (or) Moment of force?

Define scalar and vector quantities?

ICS Part 1 Physics Chapter 2 Short Questions Test - Set 5

The vector sums of three vectors give a null vector. What can be orientation of the vectors?

Define null and equal vectors.

Discuss, how a vector is represented?

Define and explain the resolution of a vector ?

Define and explain the scalar product?

Define scalar and vector quantities?

Why can a body not rotate about its centre of gravity under the action of its weight?

Discuss the addition of vector by rectangular component method?

The resultant of two vector, one is double in magnitude than the other, perpendicular to the smaller force. What is the angle between the two forces ?

Define the following?
Parallel vectors
Equal vectors
null vectors
Anti parallel vectors
Negative of a vectors

Define the following?
Parallel vectors
Equal vectors
null vectors
Anti parallel vectors
Negative of a vectors

When body is in .
Translation equilibrium
Rotational equilibrium

When body is in .
Translation equilibrium
Rotational equilibrium