Advertisements
Advertisements
Question
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.
Advertisements
Solution
The given statement is false.
We know, PE = mgh
So, for h = 1 m, m = 1 kg and g = 9.8 m/s2 the PE is = (1)(9.8)(1) = 9.8 J
APPEARS IN
RELATED QUESTIONS
Gravitational potential energy U = mass × force of gravity on unit mass × ..........
State two factors on which the potential energy of a body at a certain height above the ground depends.
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?
Two bodies of same masses are placed at heights h and 2h. Compare their gravitational potential energy.
A body at a height possesses ______.
A body falls freely under gravity from rest. Name the kind of energy it will possess at the point from where it falls.
What happens to the potential energy of a body when its height is doubled?
On what factors does the gravitational potential energy of a body depend?
If 784 J of work was done in lifting a 20 kg mass, calculate the height through which it was lifted. (g = 9.8 m/s2)
Which of the following is the example potential energy?
