Studied by 0 people
Looks like no one added any tags here yet for you.
Metabolic rate
Refers to how fast the body converts energy from food into energy for the body to perform different functions.
Metabolic rate
Even when the body is at rest, it consumes energy to maintain functions such as breathing, repairing and growing cells, and circulating blood.
Metabolic rate
It is affected by oneās weight, age, gender, and physical activity.
Calories
Unit for the energy content of food.
Force
is any interaction that, when unopposed, will change the motion of an object.
š¹ = š š„ š
Formula of Force?
Displacement
refers to the shortest distance between the initial and final positions of an object, along with the direction. It is a vector quantity, meaning it has both magnitude and direction.
Elastic Potential Energy
is the energy stored in an object when it is stretched or compressed, such as in a spring. This energy is stored due to the elastic deformation of the material and can be released when the object returns to its original shape.
Hookeās Law
The formula for the elastic potential energy stored in a spring is given by whose law?
Gravitational Potential Energy, gravitational force
is the energy stored in an object due to its height above a reference point, typically the Earth's surface. The higher an object is, the more potential energy it has, due to the __________ acting on it.
NONCONSERVATIVE FORCE
are forces that do not conserve mechanical energy
NONCONSERVATIVE FORCE
These forces often transform mechanical energy into other forms, such as thermal energy. Examples include friction, air resistance, and applied forces.
nonconservative forces
In the presence of _________, the total mechanical energy (kinetic + potential) of a system changes.
changes
In the presence of nonconservative forces, the total mechanical energy (kinetic + potential) of a system?
Friction
is a nonconservative force that resists the motion or attempted motion of an object across a surface.
Power
is the rate at which work is done or energy is transferred.
Energy
is the capacity to do work.
energy
It exists in different forms, such as kinetic ,potential, ,thermal , and more.
Energy
It can be transformed from one form to another but is always conserved in a closed system.
Power
It measures how quickly energy is used or produced.
Negative
The work done by friction is typically?
Mechanical Energy
is the sum of the kinetic and potential energy of an object. It represents the total energy due to an object's motion and position.
Potential Energy
is the stored energy in an object due to its position or configuration. It is most commonly encountered in two forms:
Gravitational Potential Energy
Potential Energy due to height?
Elastic Potential Energy
Potential Energy stored in stretched or compressed objects like springs.
Kinetic Energy
is the energy an object has due to its motion.
Greater
The faster the object moves, the _______ its kinetic energy.
The Work-Energy Theorem
It states that the work done on an object is equal to the change in its kinetic energy.
The Work-Energy Theorem
It establishes a direct relationship between the work done on an object and its resulting motion.
The Work-Energy Theorem
This shows that if a net force is applied to an object, it will cause a change in the object's kinetic energy.
For example, if an object starts at rest and a force accelerates it, the work done will be equal to the kinetic energy it gains.
Force
causes an object to change its state of motion.
Displacement
is the change in position of an object.
Elastic Potential Energy
is stored in stretched or compressed objects like springs.
Gravitational Potential Energy
is the energy an object has due to its height in a gravitational field.
Nonconservative Forces
cause energy to be dissipated from the system, often as heat or sound.
Friction
is a nonconservative force that resists motion and does negative work.
Power
is the rate of doing work or transferring energy.
Energy
is the capacity to do work.
Mechanical Energy
is the sum of an object's kinetic and potential energy.
Potential Energy
is stored energy due to position or configuration.
Kinetic Energy
is the energy of motion.
Work-Energy Theorem
connects work done to the change in kinetic energy.
Force
It can cause an object to accelerate, decelerate, remain in place, or change direction.
Force
can be a push or a pull and is described by both its magnitude and direction.
Energy
It is required for the evolution of life forms on Earth
Energy
It is defined as the capacity to do work.
conservation of energy.
ā¢ The total amount of energy in the universe or in any isolated
system remains constant. This statement is called?
isolated
A system is considered ______ if it does not absorb or
release energy from the surrounding environment at the
time it is being considered.
energy can neither be created nor be destroyed.
What does the law of conservation of energy states?
Conservative force
ā¢ Work done independent of the path
Conservative force
ā¢ Work done in a round trip is zero
Conservative force
ā¢ Total energy remains constant
Conservative force
ā¢ Work done is completely recoverable
Conservative force
ā¢ Force is the negative gradient of potential
Non-conservative forces
ā¢ Work done depends upon the path
Non-conservative forces
ā¢ Work done in A round trip is not zero
Non-conservative forces
ā¢ Energy is dissipated as heat energy
Non-conservative forces
ā¢ Work done is not completely recoverable
Non-conservative forces
ā¢ No such relation exists
"Momentum"
is a very useful term that was devised to help us to control our environment and to predict how collisions will turn out.
mass, velocity
If you think of something being thrown at a pane of glass, the outcome will depend on what is being thrown (its ?) and on how fast it is travelling (its__?).
formula for MOmentum
mass x velocity
kg m/s
The unit of momentum does not have a name after a particular scientist, so can be remembered from the way in which it is calculated. It is: ____?
Collisions
ā¢ Occurs when a body
comes in contact with
another body.
ā¢ Momentum
It is always
conserved in all types of
collisions.
total kinetic energy
It may or not be conserved,
depending on type of collisions.
Elastic collision ā
the bodies separate after colliding with each
other. Both momentum and kinetic energy are conserved
during an elastic collision. āThe coefficient of restitution is equal
to 1ā.
ā¢ Inelastic collision
ā collision where momentum is conserved but
not the kinetic energy are considered. āThe coefficient of
restitution for inelastic collision is between 0 and 1ā.
ā¢ Perfectly inelastic collision ā
some of the kinetic energy goes
into other forms like heat, sound, and permanent deformation
of a given system. If the interacting bodies stick together and
move as one after collision. āThe coefficient of restitution for
perfectly inelastic collision is zeroā.
Note 
Flashcard (37)