Kinetic energy and potential energy together are called which form of energy?
Mechanical
The correct answer is Mechanical Energy.
Mechanical energy is the sum of kinetic energy and potential energy in a mechanical system. Kinetic energy is the energy of motion, while potential energy is stored energy due to position or configuration. Examples of mechanical energy include a moving car (kinetic energy), a stretched spring (potential energy), or a pendulum swinging (both kinetic and potential energy).
Let's examine why the other options are incorrect:
- Chemical energy is stored in the bonds of molecules and is released during chemical reactions (e.g., burning fuel).
- Thermal energy is the internal energy of an object due to the kinetic energy of its atoms and molecules (related to temperature).
- Nuclear energy is stored within the nucleus of atoms and is released during nuclear reactions (e.g., nuclear fission).
Therefore, only mechanical energy directly encompasses both kinetic and potential energy forms.
Similar Questions
9800 Joules of energy was spent to raise a mass of 80 kg. The mass was raised to a height of______
The energy possessed by a body due to its change in position or shape is called:
The kinetic energy of a ball weighing 0.5 kg moving with a velocity of 4 m/s will be:
A boy weighing 50 kg runs up a staircase of 40 steps, each of 16 height cm, in 10 s. Calculate his power. (Take g = 10 m/s 2)
The capacity to do work is called:
One horse power is equals to ________.
Mechanical energy is the combination of kinetic energy and______.
A ball of 0.1 kg is dropped from rest. When it falls through a distance of 2 m, the work done by the force of gravity is (g = 9.8 m/s 2):
If 1,200 J of work is done in pushing a trolley by 20 m, what was the force (in N) employed?
A car loses 200 kJ of kinetic energy when its speed decreases from 25 m/s to 15 m/s. Find its mass in tonnes.
Important Questions from Work Power Energy
Which of the following is NOT correct regarding friction?
If a pump can raise 200 liters of water through a height of 300 meters in one minute, how much work can it do in one hour?
Which of the following is an example of kinetic energy?
How much kinetic energy does a 160 g cricket ball have when it is thrown at a speed of 22 m/s?
The movement of birds is an example of _______.
