Click the correct answer (True or False).
Click the correct answer.
Which of the following statements is incorrect?
Both work and energy have the same units.
Potential energy of a body is due to its position or state.
Kinetic energy of a body is due to its motion.
Potential energy is always equal to kinetic energy.
Which form of energy is stored in an electric cell?
Heat energy
Mechanical energy
Chemical energy
Electrical energy
Which of the following is a correct relation?
K.E. = (1/2)mv2
K.E. = (1/2)mv
K.E. = (1/2)(m/v2)
K.E. = (1/2)(m2/v)
Which of the following types of energy is utilised by plants for the process of photosynthesis?
Heat energy
Light energy
Chemical energy
Nuclear energy
Click the correct answer.
The potential energy is directly proportional to
.
height of the body
mass of the body
mass and height of the body
molecules of the body
While burning of wood, the chemical energy changes to
.
kinetic energy
heat energy
potential energy
mechanical energy
When you kick a ball lying on the ground, the potential energy changes to
.
heat energy
electrical energy
kinetic energy
nuclear energy
When fire crackers burst, the chemical energy changes to
.
heat energy
sound energy
light energy
heat, sound and light energy
A stone kept at a height possesses
energy.
elastic potential
gravitational potential
kinetic
heat
A battery stores
energy.
heat
chemical
light
electrical
The total energy of a system is always
.
constituted
contributed
conserved
transferred
