Physics
Grade-7
Easy
Question
Velocity is ____ proportional to the kinetic energy.
- Directly
- Inversely
- Initially directly and then inversely
- Initially inversely and then directly
Hint:
Directly
The correct answer is: Directly
Kinetic energy is directly proportional to the square of its velocity. Hence, if the velocity is doubled, the kinetic energy quadruples.
K.E. = 1/2mv2
Related Questions to study
Physics
What can you say about the kinetic energy when both have the same mass?
A) 2 m/s
B) 
m/s
What can you say about the kinetic energy when both have the same mass?
A) 2 m/s
B) m/s
PhysicsGrade-7
Physics
Which of the bodies given below has less kinetic energy when both have the same mass?
A) 3 m/s
B) 6 m/s
Which of the bodies given below has less kinetic energy when both have the same mass?
A) 3 m/s
B) 6 m/s
PhysicsGrade-7
Physics
Which of the bodies given below has more kinetic energy when both have the same mass?
A) 2 m/s
B) 3 m/s
Which of the bodies given below has more kinetic energy when both have the same mass?
A) 2 m/s
B) 3 m/s
PhysicsGrade-7
Physics
Which of the bodies given below has less kinetic energy when both have the same mass?
A) 1 m/s
B) 
m/s
Which of the bodies given below has less kinetic energy when both have the same mass?
A) 1 m/s
B) m/s
PhysicsGrade-7
Physics
Which of the bodies given below has more kinetic energy when both have the same mass?
A) 2m/s
B) 4m/s
Which of the bodies given below has more kinetic energy when both have the same mass?
A) 2m/s
B) 4m/s
PhysicsGrade-7
Physics
Which of the following statements is correct for the graph between kinetic energy and velocity of the body?
Which of the following statements is correct for the graph between kinetic energy and velocity of the body?
PhysicsGrade-7
Physics
What kind of graph is the graph between kinetic energy and velocity of the body?
What kind of graph is the graph between kinetic energy and velocity of the body?
PhysicsGrade-7
Physics
As velocity decreases, kinetic energy
As velocity decreases, kinetic energy
PhysicsGrade-7
Physics
As velocity increases, the kinetic energy
As velocity increases, the kinetic energy
PhysicsGrade-7
Physics
Identify the correct relation.
Identify the correct relation.
PhysicsGrade-7
Physics
All of the following are examples of things that produce light energy , except
All of the following are examples of things that produce light energy , except
PhysicsGrade-7
Physics
Direction : Identify the energy common in each of the example given.
Working of TV, fridge, AC
Direction : Identify the energy common in each of the example given.
Working of TV, fridge, AC
PhysicsGrade-7
Physics
Direction : Identify the energy common in each of the example given.
Man jumping, child swinging, apple falling
Direction : Identify the energy common in each of the example given.
Man jumping, child swinging, apple falling
PhysicsGrade-7
Physics
Direction : Identify the energy common in each of the example given.
Plants, chips packets, reactions
Direction : Identify the energy common in each of the example given.
Plants, chips packets, reactions
PhysicsGrade-7
Physics
Direction : Identify the energy in each of the case.
Riding a cycle
Direction : Identify the energy in each of the case.
Riding a cycle
PhysicsGrade-7
