chapters 5-7 Flashcards
force equation
force = mass x acceleration
three classes of levers
fulcrum, resistance, effort.
define fulcrum
a fixed point about which the lever can turn sometimes referred to as the axis or pivot
define resistance
the load or weight that the lever must move.
define effort
the amount of force required to move the load
physical health and well being
being well in the body and free from injury and illness
mental health and well being
feeling well in the mind, with a positive outlook and a sense of your own value
social health and well being
a positive sense of involvement with family, friends and others in the community
aspects of well being
having a healthy diet, taking regular exercise and feeling physically fit, feeling good about yourself, spending time with family or friends.
aspects of mental health
high self-esteem, feeling motivated, being able to cope with stress and emotions
aspects of social health
friendships, confidence with people, feeling valued, getting support and motivation from others.
define fitness
the ability to meet all demands of the environment
carbohydrates function
provide body’s main source of fuel, needed for physical activity. takes 55% of our energy intake
source of carbohydrates
fruits, bread, grains, starchy vegetables, rice, pasta.
fats function
supply a highly concentrated source of energy that you can store in your body for later use. takes 30% of our energy intake
source of fats
red meats, butter, cooking oils, cheese, bacon
protein function
help body cells grow, repair cells and muscle tissue. Takes 15% of our energy intake