Advertisements
Advertisements
Question
The potential energy of your body is least when you are ______.
Options
sitting on a chair
Sitting on the ground
sleeping on the ground
standing on the ground
Advertisements
Solution
The potential energy of your body is least when you are sleeping on the ground.
Explanation:
Based on its position, any object can store energy. Potential energy is the stored energy in that position. For example, a drawn bow stores energy due to its position. When the bow is in its usual posture, that is, when it is not drawn, no energy is stored in it. However, if its position is altered from its typical equilibrium state, it can store energy as a result of its position.
When it comes to gravitational potential energy. A relationship between an object's height and gravitational potential energy is observed. The gravitational potential energy of an object increases with its elevation.
A person seated in a chair is the most elevated of the possibilities shown. As a result, it possesses the most potential energy. When sleeping or lying down on the ground, a person's height from the ground is at its lowest. As a result, when a person sleeps on the ground, his or her potential energy is limited.
APPEARS IN
RELATED QUESTIONS
A bucket full of water is on the first floor of your house and another identical bucket with the same quantity of water is kept on the second floor. Which of the two has greater potential energy?
A body of mass m is moved from ground to a height h. If force of gravity on mass of 1 kg is g newton, find the potential energy stored in the body.
Two bodies of same masses are placed at heights h and 2h. Compare their gravitational potential energy.
A body at a height possesses ______.
A spring is kept compressed by a small trolley of mass 0.5 kg lying on a smooth horizontal surface as shown in the adjacent fig. When the trolley is released, it is found to move at a speed v = 2 m s-1. What potential energy did the spring possess when compressed?
State whether the following statement is true or false :
The potential energy of a body of mass 1 kg kept at a height of 1 m is 1 J.
A weightlifter is lifting weights of mass 200 kg up to a height of 2 metres. If g = 9.8 m s−2, calculate :
potential energy acquired by the weights.
A weightlifter is lifting weights of mass 200 kg up to a height of 2 metres. If g = 9.8 m s−2, calculate :
work done by the weightlifter
A body of mass 2 kg is thrown vertically upwards with an initial velocity of 20 m/s. What will be its potential energy at the end of 2 s? (Assume g = 10 m/s2).
Explain by an example what is meant by potential energy. Write down the expression for gravitational potential energy of a body of mass m placed at a height h above the surface of the earth.
When a ball is thrown vertically upwards, its velocity goes on decreasing. What happens to its potential energy as its velocity becomes zero?
Prove that the kinetic energy of a freely falling object on reaching the ground is nothing but the transformation of its initial potential energy.
If we increase the velocity of a car moving on a flat surface to four times its original speed, its potential energy ______.
How much energy is gained by a box of mass 20 kg when a man, raises the box by 0.5 m in order to place it inside the bus? (g=10 m/s-2)
The energy, possessed by an object due to its position is called ______.
Which of the following is the example potential energy?
A body is falling from a height of h. After it has fallen a height `"h"/2`, it will possess
The potential energy is
