ICS Part 1 Physics English Medium Chapter 3 Online Short Questions Test with Answers

Online Short Questions For Chapter 3 "ICS Part 1 Physics Chapter 3 Short Questions Test "

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Physics - ICS Part 1 Physics Chapter 3 Short Questions Test

Question # 1

What is projectile motion? In what direction acceleration is zero in this motion?

Ans 1: It is the two dimensional motion in which the object moves under constant acceleration due to gravity.
The acceleration in horizontal direction is zero in projectile motion.

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

Question # 1

What is projectile motion? In what direction acceleration is zero in this motion?

Ans 1: It is the two dimensional motion in which the object moves under constant acceleration due to gravity.
The acceleration in horizontal direction is zero in projectile motion.

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

Question # 1

State law of inertia?

Ans 1: Newton's 1stlaw of motion is called law of inertia
It states that a body at rest will remain at rest , and a body moving with uniform velocity will continue to do so, unless acted upon by some unbalanced external force.

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

Question # 1

What is the change in total energy during elastic or inelastic collisions?

Ans 1: The total energy of the system remains conserved during both type of collisions. But in an inelastic collision, some of the kinetic energy is lost .

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ICS Part 1 Physics Chapter 3 Short Questions Test - Set 4

Question # 1

Under what conditions a body can move with uniform acceleration?

Ans 1: If the velocity of the body is changing equally in equal intervals of time, the body is said to have uniform acceleration.
For a body moving with uniform acceleration, its average acceleration is equal to instantaneous acceleration.

Question # 5

Discuss the condition of equilibrium ?

Ans 1:
Newtons 1st Law of motion: This Law states that "A body at rest will remain at rest and a body in motion will continue its motion with uniform velocity unless it is acted upon by some unbalanced external force
If F = 0 Then a = 0
Explanation: The Ist law of motion is also known as law of inertia. The inertia is the property of a body which opposes any change in its state of motion or rest. Actually, when some force is applied on a body for changing its state of rest or uniform motion, then the body will affer resistance against this change. In the word, We can say that all the bodies try to maintain its state of rest or continue its uniform motion due to inertia. That is the why the newtons Ist law is also known as law of inertia.
Examples:When we give a jerk to the branch of a tree, then the fruit falls down. It is because, when we give a jerk, the branch of the tree comes into motion suddenly.
When a bus starts motion suddenly, the passengers experience a push in the back ward direction It is because, when the bus starts motion suddenly, the lower parts of the passenger in contact with the seats also come into motion. while the upper parts of the passengers are at remain at the rest In this attempt, they falls in the back words directions
Newton's 2nd Law of motion:
Statements: This law states that, "when a force is applied on a body, then acceleration is produced in the body in the direction of applied force and inversely proportional to the mass of the body.
Explanation: The Ist Law of motion gives us the quantitative measurements of force, While the 2nd law of motion gives us the quantitative measurements of forces. now if the direction of motion of the body and direction of motion of the body and direction of forces are the same, then its velocity and acceleration increases. If the direction of motion of the body and direction of force are opposite in direction of force are opposite in direction, then the velocity and acceleration of the body will decreases gradually and finally become zero and the body will come to rest
Example of newtons 2nd law of motion:
When a body falls on a solid floor from the top of a building, the body experience or feel great pain. It is because, when the body falls on the floor, its acceleration become zero suddenly and the body faces huge force for very short period of time
Newton,s 3rd Law of motion:
This Law states that for every action, there is always a reaction. These forces are equal in magnitude but opposite in direction.
Explanation: This law tells us that no body can experience a force from its surrounding, until this body exerts any force on its surrounding It means That forces are exerted in pairs.

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ICS Part 1 Physics Chapter 3 Short Questions Test - Set 5

Question # 1

Why ballistic missiles are not useful for long ranges?

Ans 1: Ballistic missiles are unpowered and unguided missiles. For long ranges, air friction is not negligible and some times the force of air friction is more than gravity. It affects both horizontal as well as vertical motions of the missile.

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ICS Part 1 Physics Chapter 3 Short Questions Test - Set 6

Question # 1

Derive the 3rd equation of motion?

Ans 1:

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ICS Part 1 Physics Short Questions Test

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ICS Part 1 Physics English Medium Chapter 3 Online Short Questions Test with Answers

Online Short Questions For Chapter 3 "ICS Part 1 Physics Chapter 3 Short Questions Test "

Physics - ICS Part 1 Physics Chapter 3 Short Questions Test

What is projectile motion? In what direction acceleration is zero in this motion?

Define maximum height of projectile? Derive a mathematical expression for maximum height of projectile ?

What is the effect on the speed of a fighter plane chasing another when it opens the fire? What happens to the speed of purdued plane when it returns the fire?

Define total of flight. Derive a mathematical expression for it ?

Define elastic and inelastic collisions.

What is Ballistic Flight and Ballistic Missile?

State and explain Newton's second law of motion.

Define ballistics flight and ballistic trajectory.

Show that for the same initial speed and some range of projectile there are two mutually complementary angles of projection ?

What is meant by perfectly elastic head-on-collision ?discuss the elastic collision in one dimension and find the mathematical equation for calculating the final velocities of colliding objects in one dimension?

Prepare Complete Set Wise Questions For Chapter 3 "ICS Part 1 Physics Chapter 3 Short Questions Test "

Set 1

Set 2

Set 3

Set 4

Set 5

Set 6

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

What is projectile motion? In what direction acceleration is zero in this motion?

Define maximum height of projectile? Derive a mathematical expression for maximum height of projectile ?

What is the effect on the speed of a fighter plane chasing another when it opens the fire? What happens to the speed of purdued plane when it returns the fire?

Define total of flight. Derive a mathematical expression for it ?

Define elastic and inelastic collisions.

What is Ballistic Flight and Ballistic Missile?

State and explain Newton's second law of motion.

Define ballistics flight and ballistic trajectory.

Show that for the same initial speed and some range of projectile there are two mutually complementary angles of projection ?

What is meant by perfectly elastic head-on-collision ?discuss the elastic collision in one dimension and find the mathematical equation for calculating the final velocities of colliding objects in one dimension?

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

State law of inertia?

Distinguish between elastic and inelastic collision.

Differentiate between distance and displacement.

Why a safety helmet of a motor cycle's is padded?

Write two object?

What is Ballistic Flight and Ballistic Missile?

Find on expression for horizontal rang of projectile?

Define inertial and non-inertial frame of references.

Under what conditions a body can move with uniform acceleration?

What is ballistic missile? Define ballistic trajectory.

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

What is the change in total energy during elastic or inelastic collisions?

Derive the 3rd equation of motion?

Define Force? Define its SI unit ?

Discuss the sign of acceleration due to gravity relative to velocity,while the object in in air?

State law of inertia?

Write any two properties of inertial frame of reference.

Find a relation for magnitude of velocity of projectile and direction of projectile?

Define linear momentum ? Express Newton,s 2nd Law in terms of momentum?

Define rest and motion ?

Define inertial and non-inertial frame of references.

ICS Part 1 Physics Chapter 3 Short Questions Test - Set 4

Under what conditions a body can move with uniform acceleration?

Show that for the same initial speed and some range of projectile there are two mutually complementary angles of projection ?

What are the factors upon which force due to water depend?

Find on expression for horizontal rang of projectile?

Discuss the condition of equilibrium ?

Define Distance and displacement ?

What is ballistic missile? Define ballistic trajectory.

State law of inertia?

Discuss the velocity-Time Graph ?

Discuss the momentum changes produced by explosive forces ?

ICS Part 1 Physics Chapter 3 Short Questions Test - Set 5

Why ballistic missiles are not useful for long ranges?

Derive the 3rd equation of motion?

Under what condition, the instantaneous and average velocities of a moving object become equal?

Define elastic and inelastic collisions.

State Newton's third law of motion and give at least two examples.

What is principle of rocket propulsion speed?

What are the factors upon which force due to water depend?

Behaviour of bouncing ball?

Define the following terms?
Velocity,
Uniform Velocity,
Variable Velocity,
Average Velocity.
Instantaneous Velocity.