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6th U 4.1 Science
6th U 4.1 Energy, Motion and Forces
| Question | Answer |
|---|---|
| The ability to cause change. | Energy |
| The two types of Energy are | kinetic energy and potential energy |
| True or False: Energy can change from one form to another. | True |
| The energy of an object that is due to motion. | Kinetic energy |
| All moving objects have this type of energy. | Kinetic energy |
| The energy related to the motion of an object is what type of energy? | Kinetic energy |
| When examining the energy of a cart on a roller coaster, where is its kinetic energy at its maximum? | At the lowest point |
| When examining the energy of a cart on a roller coaster, where is its gravitational potential energy at its maximum? | At the highest point |
| The energy that an object has due to its position condition or chemical composition. | Potential energy |
| Potential energy that is the result of an object's position is called __ potential. | gravitational |
| Gravitational potential energy increases as the object's ___ increases. | height or mass |
| Stretching a rubber band increases the rubber bands ___ energy. | Potential |
| This type of potential energy depends on chemical composition. | Chemical potential |
| Can an object have both potential and kinetic energy at the same time? | Yes, a flying bird has kinetic energy because of its speed and mass, and potential energy due to its height from the ground. |
| The sum of an object's kinetic energy and potential energy. | Mechanical energy |
| Kinetic energy is the energy of ___. | Motion |
| Potential energy is the energy of ___. | Position |
| The energy of position and motion. | Mechanical energy |
| Kinetic energy caused by the vibration of particles in a medium such as steel, water or air. | Sound energy |
| As particles of some types of matter vibrate, they transfer the ___energy to other particles | Sound |
| Energy transmitted through space in the form of electromagnetic waves. | Electromagnetic |
| Electromagnetic waves include ___, ___, ___. | Visible light, x-rays, microwaves |
| High-energy waves used by doctors and dentists to look at your bones. | X-rays |
| Can be used to cook food or to transmit cellular telephone calls. | Microwaves |
| The sun releases a large amount of electromagnetic energy, some of which reaches Earth as ____. | Radiant energy |
| The energy that results from the position or motion of charged particles. | Electrical energy |
| The electrical energy that power the light overhead is associated with __ charged particles moving in a wire. | Negatively |
| A form of potential energy that depends on the kinds of atoms and their arrangement. | Chemical Energy |
| Is the kinetic energy of an objects particles. Particles move faster at higher temperatures than at lower temperatures. | Thermal Energy |
| The energy transferred from an object at a higher temperature to an object at a lower temperature. | Heat |
| The nucleus of an atom is the source of this type of energy. | Nuclear Energy |
| When an atom's nucleus breaks apart, or when the nuclei of two small atoms join together, this type of energy is released. | Nuclear Energy |
| The energy given off by the sun comes from this type of energy. | Nuclear Energy |
| A huge amount of energy is released when a hydrogen nuclei join to make helium nucleus in the sun. The sun's___ come from these reactions. | light and heat |
| Without this type of energy from the sun, life would not exist on Earth. | Nuclear energy |
| This occurs when energy changes from one form into another form. Remember that any form of energy can change into any other form of energy. | Energy transformation |
| This type of system is a group of objects that transfers energy only to one another. Energy is conserved in all of this type of systems. | Closed system |
| This law states that energy cannot be created or destroyed. It can only change forms. | Law of conservation of energy |
| Kinetic energy is the energy of ___. | motion |
| Potential energy is the energy of ___ | position |
| This type of energy is the sum of energy of motion and energy of position. | Mechanical energy |
| Which of the following best represents stored potential energy? Air leaking from a flat tire, stress built up in a rock fault, heat given off by a forest fire, or water flowing through a hose. | Stress built up in a rock fault |
| A baseball flying through the air best describes which type of energy? | Kinetic energy |
| Name two types of energy that a baseball flying through the air has. | Kinetic energy and potential energy |
| A bike speeding down a hill has which type of energy? | Kinetic energy |
| A swing moving back and forth has which type of energy? | Kinetic energy |
| A ball sitting at the top of a hill has which type of energy? | Potential energy |
| A boy standing still at the top of a skateboard ramp has which type of energy? | Potential energy |
| A rock at the top of a mountain has which type of energy? | Potential energy |
| A large snowball sitting on top of a sea-saw has which type of energy? | Potential energy |
Created by:
wmeeks
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