The change in the kinetic energy (KE) of the bottle when the mass is increased =
Kinetic energy refers to an energy that is possessed by a physical object or body due to its motion.
Mathematically, kinetic energy is calculated by using the formula where:
K.E is the kinetic energy.
M is the mass of an object.
V is the velocity of an object.
a. When the mass of the bottle is 0.125 kg:
Kinetic energy = 1/2 * 0.125 *0.4*0.4*
=0.0625*16
=1kg/m2/s2
b. When the mass of the bottle is 0.250 kg:
Kinetic energy = 1/2 * 0.250 *0.4*0.4*
=0.125*16
=2kg/m2/s2
c. When the mass of the bottle is 0.375 kg:
Kinetic energy = 1/2 * 0.375 *0.4*0.4*
=0.1875*16
=3 kg/m2/s2
d.When the mass of the bottle is 0.500 kg
Kinetic energy = . 1/2 * 0.500 *0.4*0.4*
=0.250*16
=4 kg/m2/s2
Identify what happens to the kinetic energy (KE) and gravitational potential energy (PE) of a rock as it falls.KE and PE both increase.
KE and PE both decrease.
KE increases and PE decreases.
KE decreases and PE increases.
PE declines but KE rises.
ENERGY POTENTIAL (PE):
According to the following formula, the height of the rock affects its potential energy:
P.E = mgh
Due to the rock having reached its maximum position at this point, the potential energy will therefore be at its highest.
The potential energy of the rock will diminish as it descends since its height will also decrease.
KE (Kinetic Energy):
According to the following formula, the kinetic energy of the rock is dependent on its velocity. As a result of the rock's initial zero velocity, the kinetic energy will be zero.
The rock's kinetic energy will increase as it falls because its velocity will increase.Hence,
KE increases and PE decreases