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Energy NMBM

Energy, Machines, and Motion

QuestionAnswer
What is energy? the ability to cause a change or to do work
What is the evidence that energy has been used? Of course, if something has changed.
Which type of energy is stored and ready for use? Potential
Which type of energy depends on the position and the chemical composition of a substance? Potential
Which type of energy depends on an objects mass and speed? Kinetic
Which type of energy is identified with motion? Kinetic
What are the two major types of energy? Potential and Kinetic
Which form of energy results from vibrations in solids, liquids, or gas and travels in waves? Sound energy
Which form of energy moves objects? Mechanical Energy
Which form of energy is stored in the chemical composition of matter? Chemical Energy
Which form of energy is based on the movement of the particles of matter? Thermal Energy
Which form of energy travels through empty space and includes visible light, x-rays, and microwaves? Electromagnetic Energy
Which form of energy is based on the splitting or combining of the nucleus of atoms? Nuclear Energy
A battery is an example of which form of energy? Chemical Energy
Which of the two major types of energy does a battery represent? Potential Energy
Energy is not created or destroyed, only changes from one form to anther. The Law of Conservation of Energy
Two reasons why solar energy are not commonly used The materials used are expensive and are not very efficient.
Two reasons advantages of solar and wind energy. Solar and wind energy supply is not limited and they do not produce harmful waste products
What is the MEASURE of the average kinetic energy of a substance? Temperature
What instrument is used to measure the average kinetic energy of a substance? Of Course! A thermometer!
What happens to the temperature if the particles of a substance moves faster? The temperature increases
What happens to the particles of a substance if the temperature increases? The particles move faster.
What is the flow of energy from high temperature to low temperature? Heat
The process that moves thermal energy from one object to another when they are physically touching Conduction
The materials that transfer energy easily Conductors
The materials that do not transfer energy easily Insulators
The process transfers thermal energy by the movement of particles in a liquid or gas. Convection
The energy that travels through empty space as electromagnetic waves Radiation
Force A push or a pull
Work Apply a for4ce to an object and the object moves a distance
A device that helps people to do work Machine
Supports some of the weight of an object going up An inclined plane
A Lever A rigid bar that rotates around a fixed point
A pulley A grooved rim with a rope around it
Two inclined planes back to back, must be moving to be affective A wedge
A screw An inclined plane wrapped around a cylinder
The "trade off" in using a simple machine Moving a longer distance or using a longer rope for less force
Two or more simple machines working together Compound or complex machine
To acquire a systematic knowledge of the world The goal of science
To apply knowledge of science and math in designing products that meet a human need. The goal of technology
Identify a need; Generate a design; Planning and building; Test and Evaluate... Technological Design
Created by: Tdudley2014