How does the energy input compare to the energy output?
How does the energy input compare to the energy output?
Input refers to the amount of energy put into a device, and output refers to the amount of energy that comes out. A device may change the type of energy but not the amount. For example, a light bulb’s input energy is the form of electrical energy, and its output energy is in the form of light and heat.
When energy input is less than energy output the person is in?
When energy input is less than energy output, the person is in energy balance. You just studied 86 terms!
What provides the input of energy to the body?
Humans obtain energy from three classes of fuel molecules: carbohydrates, lipids, and proteins. The potential chemical energy of these molecules is transformed into other forms, such as thermal, kinetic, and other chemical forms.
What factors affect energy input?
BMR is dependent on body size, body composition, sex, age, nutritional status, and genetics. People with a larger frame size have a higher BMR simply because they have more mass.
What is health output energy?
Energy Output Energy output happens when your body uses energy. We often refer to this as “burning” calories. Even when you’re sleeping, your body uses energy to perform basic functions like breathing and circulating blood. The rate at which your body burns calories at rest is called your basal metabolic rate (BMR).
What three things make up your energy output?
Daily energy expenditure is composed of three major components: 1) resting metabolic rate (RMR); 2) the thermic effect of feeding (TEF); and 3) the thermic effect of activity (TEA).
What four factors determine energy needs?
Gender, age and body weight are the main determinants of total energy expenditure. Thus, energy requirements are presented separately for each gender and various age groups, and are expressed both as energy units per day and energy per kilogram of body weight.
What is the input energy of a TV?
While watching TV, electrical energy is the input and light and sound is the output. Example 3: A torch will not work when you turn it on unless it has batteries. The input energy for the torch to work comes from the chemical energy in the batteries which is changed to electrical energy.
Is it ever possible that power output is more than power?
A system can exist in which the energy is put in very slowly and taken out quickly. Since power is the time rate of energy flow it is low power in and high power out. However the system can not put out more energy than it had to begin with.
How is power input and heating power input related?
Power input terms indicated that maximum power consumption capacity of that machine. If you increase a load on that machine then that machine will start taking much more power for that extra load. If load is more than capacity, that machine takes a lots of amount of power that this machine can’t handle.
Which is the most efficient form of energy?
There is no system whose efficiency can be more than 100%. Power which is a form of energy, the output will be will be less than the input power always. Take the example of a transformer, the most efficient electrical equipment in power system.
Is the time rate of energy flow low or high?
Since power is the time rate of energy flow it is low power in and high power out. However the system can not put out more energy than it had to begin with. Energy cannot be created from nothing. Think if it this way. I build a dam and fill in a ten mile lake behind it which takes, say, a year.
A system can exist in which the energy is put in very slowly and taken out quickly. Since power is the time rate of energy flow it is low power in and high power out. However the system can not put out more energy than it had to begin with.
Which is an example of energy input and output?
Ideally the devices are functional e.g. the fan is blowing, the light bulb is on, the speaker is playing music. Students visit each device and record on their worksheet the type of energy they think makes the device work (i.e. the input energy) and what kind of energy it produces (i.e. the output energy).
Power input terms indicated that maximum power consumption capacity of that machine. If you increase a load on that machine then that machine will start taking much more power for that extra load. If load is more than capacity, that machine takes a lots of amount of power that this machine can’t handle.
When does your energy intake match your energy output?
When your energy intake matches your energy output, you will maintain your weight, whatever that is. People who are overweight or obese can be in energy balance. In other words, their intake matches their energy output but at some point in their life, their energy intake exceeded their energy intake.