What is difference matter and substance? Answer. anything which occupies space and has mass is called matter. But the that has specific composition and chemical characteristics is substance. What is the substance of matter? substance: A form of matter that has constant chemical composition and characteristic properties. It is composed of one type of atom […]
Does heat affect electricity?
Does heat affect electricity? Temperature affects how electricity flows through an electrical circuit by changing the speed at which the electrons travel. This is due to an increase in resistance of the circuit that results from an increase in temperature. Likewise, resistance is decreased with decreasing temperatures. How can you heat your home without electricity? […]
Is a pure compound?
Is a pure compound? *Note: pure oxygen gas consists of molecules but it is still considered an element, rather than a compound, as the molecules are made up of a single type of element. Compounds are made up of one or more element….Pure Substances. Pure Substance Element or Compound? Consists of: Ammonia (NH3) compound ammonia […]
What can happen to your bones if they lose calcium?
What can happen to your bones if they lose calcium? Aging and Bone Loss As you age, your body may reabsorb calcium and phosphate from your bones instead of keeping these minerals in your bones. This makes your bones weaker. When this process reaches a certain stage, it is called osteoporosis. Is calcium more concentrated […]
What is the function of striated muscle?
What is the function of striated muscle? The primary function of striated muscles is to generate force and contract in order to support respiration, locomotion, and posture (skeletal muscle) and to pump blood throughout the body (cardiac muscle). What is the difference between striated and smooth muscle? Striated muscle is composed of muscle fibers, made […]
Does an object with mass always have momentum?
Does an object with mass always have momentum? An object with mass will have momentum. An object which is moving at a constant speed has momentum. An object can be traveling eastward and slowing down; its momentum is westward. Momentum is a conserved quantity; the momentum of an object is never changed. Can any object […]
What is the most common damage from car accidents?
What is the most common damage from car accidents? A soft tissue injury is damage to the body’s connective tissue, which means muscles, ligaments and tendons. This is the most common type of injury resulting from a car accident. Soft tissue injuries can take many forms. A “whiplash” type injury to the neck and upper […]
What are the behavioral adaptations of a giraffe?
What are the behavioral adaptations of a giraffe? A behavioral adaptation giraffes make when they drink water is to gulp it. Gulping is drinking a lot of liquid quickly without choking. Giraffes gulp as much as 10 gallons of water in a few minutes. They have also adapted the ability to go a long time […]
Are AC and DC capacitors interchangeable?
Are AC and DC capacitors interchangeable? AC capacitor does not have polarity, but the constructions are generally based on films without any kind of electrolyte. DC is just a special case where the polarity of the voltage does not change, so you can use AC capacitors – as is – in a DC application. Why […]
What is the benefit of going to the moon?
What is the benefit of going to the moon? By successfully establishing a presence on the Moon, we will enhance life on Earth and prepare to explore the rest of our solar system — and beyond! Keeping astronauts healthy in a lower-gravity and higher-radiation environment than Earth is an important challenge for medical researchers. What […]