Newtons Laws Of Motion And Momentum

Question 1

What is Newton’s First Law of Motion?

Answer 1

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by an external force.

Question 2

What is inertia?

Answer 2

When an object changes in its state of motion

Question 3

Newton’s second law?

Answer 3

Net force acting on an object is directly proportional to the rate of change of momentum in the same direction

Question 4

What is the formula for Newton’s Second Law?

Answer 4

F = ma

Question 5

What does the ‘F’ in the equation F = ma represent?

Answer 5

Force

Question 6

What does the ‘m’ in the equation F = ma represent?

Answer 6

Mass

Question 7

What does the ‘a’ in the equation F = ma represent?

Answer 7

Acceleration

Question 8

True or False: The unit of force in the SI system is the Newton.

Answer 8

True

Question 9

What is Newton’s Third Law of Motion?

Answer 9

For every action, there is an equal and opposite reaction.

Question 10

Multiple Choice: Which of the following is an example of Newton’s Third Law? A) A car accelerating, B) A rocket launching, C) A book resting on a table.

Answer 10

B) A rocket launching

Question 11

What is momentum?

Answer 11

Momentum is the product of an object’s mass and velocity.

Question 12

What is the formula for momentum?

Answer 12

p = mv

Question 13

What does ‘p’ represent in the momentum equation p = mv?

Answer 13

Momentum

Question 14

What is the principle of conservation of momentum?

Answer 14

The total momentum of a closed system remains constant if no external forces act on it.

Question 15

True or False: Momentum is a scalar quantity.

Answer 15

False

Question 16

Fill in the blank: In a collision, the total momentum before the collision is equal to the total momentum _____ the collision.

Answer 16

after

Question 17

What type of collision conserves both momentum and kinetic energy?

Answer 17

Elastic collision

Question 18

What type of collision conserves momentum but not kinetic energy?

Answer 18

Inelastic collision

Question 19

True or False: An object moving in a circular path experiences a net force directed towards the center of the circle.

Answer 19

True

Question 20

What is the relationship between force and acceleration according to Newton’s Second Law?

Answer 20

Force is equal to mass times acceleration.

Question 21

What happens to the acceleration of an object if the mass is doubled while the force remains constant?

Answer 21

The acceleration is halved.

Question 22

Fill in the blank: The law that states that the acceleration of an object is directly proportional to the net force acting on it is known as Newton’s _____ Law.

Answer 22

Second

Question 23

What does a free-body diagram represent?

Answer 23

The forces acting on an object.

Question 24

What is the unit of momentum in the SI system?

Answer 24

Kilogram meter per second (kg·m/s)

Question 25

Multiple Choice: Which of the following quantities is conserved in all types of collisions? A) Kinetic Energy, B) Mass, C) Momentum.

Answer 25

C) Momentum

Question 26

What is the effect of unbalanced forces on an object's motion?

Answer 26

It causes the object to accelerate.

Question 27

True or False: A net force of zero results in a change in the motion of an object.

Answer 27

False