NEET PREPARATION NOTES WITH
IMPORTANT QUESTIONS & ANSWERS
PHYSICS
Important Definitions
1. Velocity
Definition: Rate of change of displacement with respect to time.
2. Acceleration
Definition: Rate of change of velocity with respect to time.
3. Momentum
Definition: Product of mass and velocity.
Formula: p = mv
4. Work
Definition: Product of force and displacement in the direction of force.
Formula: W = Fs cosθ
5. Power
Definition: Rate of doing work.
Formula: P = W/t
6. Electric Current
Definition: Rate of flow of electric charge.
Formula: I = Q/t
, Important Physics Questions and Answers
Q1. State Newton's First Law of Motion.
Answer:
A body remains at rest or continues to move with uniform velocity in a straight line unless acted
upon by an external force.
Q2. State Newton's Second Law of Motion.
Answer:
The rate of change of momentum of a body is directly proportional to the applied force.
Formula:
F = ma
Q3. State Newton's Third Law of Motion.
Answer:
For every action, there is an equal and opposite reaction.
Q4. What is Kinetic Energy?
Answer:
The energy possessed by a body due to its motion is called kinetic energy.
Formula:
KE = ½mv²
Q5. What is Potential Energy?
IMPORTANT QUESTIONS & ANSWERS
PHYSICS
Important Definitions
1. Velocity
Definition: Rate of change of displacement with respect to time.
2. Acceleration
Definition: Rate of change of velocity with respect to time.
3. Momentum
Definition: Product of mass and velocity.
Formula: p = mv
4. Work
Definition: Product of force and displacement in the direction of force.
Formula: W = Fs cosθ
5. Power
Definition: Rate of doing work.
Formula: P = W/t
6. Electric Current
Definition: Rate of flow of electric charge.
Formula: I = Q/t
, Important Physics Questions and Answers
Q1. State Newton's First Law of Motion.
Answer:
A body remains at rest or continues to move with uniform velocity in a straight line unless acted
upon by an external force.
Q2. State Newton's Second Law of Motion.
Answer:
The rate of change of momentum of a body is directly proportional to the applied force.
Formula:
F = ma
Q3. State Newton's Third Law of Motion.
Answer:
For every action, there is an equal and opposite reaction.
Q4. What is Kinetic Energy?
Answer:
The energy possessed by a body due to its motion is called kinetic energy.
Formula:
KE = ½mv²
Q5. What is Potential Energy?