Advertisements
Advertisements
Question
Fill in the blank with suitable word :
The ability of a body to do work is called __________. The ability of a body to do work because of its motion is called __________.
Advertisements
Solution
The ability of a body to do work is called energy. The ability of a body to do work because of its motion is called kinetic energy.
APPEARS IN
RELATED QUESTIONS
In what way does the temperature of water at the bottom of a waterfall differ from the temperature at the top? Explain the reason.
A stone of mass 500 g is thrown vertically upwards with a velocity of 15 m/s. Calculate:
- the potential energy at the greatest height,
- the kinetic energy on reaching the ground, and
- the total energy at its half-way point.
What kind of energy is possessed by the following?
A compressed spring ____________.
What type of energy is possessed : by the stretched rubber strings of a catapult?
A ball of mass 0.5 kg slows down from a speed of 5 m/s so that of 3 m/s. Calculate the change in kinetic energy of the ball. State your answer giving proper units.
A stone is thrown upwards as shown in the diagram. When it reaches P, which of the following has the greatest value of the stone?
Describe the energy changes which take place in a radio.
A ball falls to the ground as shown below :
What is the kinetic energy of ball when it hits the ground?
When an object falls freely towards the earth, then its total energy :
A girl is carrying a school bag of 3 kg mass on her back and moves 200 m on a levelled road. The work done against the gravitational force will be (g = 10 m s–2)
