The ability to do work or cause a change
What is energy?
Gravitational potential energy and kinetic energy make up this form of energy
What is mechanical energy?
A force caused by the movement of negative and positive particles
What is an electrical charge?
A loop through which an electric current can flow
What is an electric circuit?
Complete the sentence:
Energy can never be created or _____, only transferred and transformed.
What is destroyed?
Stored energy
What is potential energy?
Sammy wears prescription glasses. His glass lenses make things look larger by doing this to the light.
What is refracting?
The flow of charged particles
What is an electric current?
Electricity can only flow in this type of circuit
What is a closed circuit?
The picture shows a child at the bottom of a plastic slide.
Describe the charges of the particles in the child's hair.
What is the atoms in the child's hair have like charges?
The highness or lowness of a sound
What is pitch?
A form of energy made up of vibrations that spread from a source
What is sound energy?
Describe the energy transformation that takes place when you turn on a radio.
What is electrical energy transforms into sound energy?
An electric circuit in which all of the elements are connected in a single loop, as shown in the picture
What is a series circuit?
This word describes objects that do not allow any light to pass through them
What is opaque?
The bending of light as it travels from one type of matter to another
What is refraction?
The energy in a stretched rubber band or a compressed spring
What is elastic energy?
A negatively charged object will move toward a ____ charged object.
What is positively?
This cord has a rubber covering over the metal plug. Describe each material (rubber and metal) using the words conductor and/or insulator.
What is the rubber is an insulator and the metal is a conductor?
The type of circuit shown in the pictures
What is a parallel circuit?
A material that energy can easily flow through
What is a conductor?
Sophia rides her bike to and from school. Sophia’s bike has a special tape that reflects energy from the sun to make it easier for cars to see her. She also uses a bell to let other bikers know if she is going to move pass them.
List the three forms of energy Sophia uses when riding her bike.
What are mechanical, light, and sound energy?
Describe how a toaster uses electricity to toast bread.
What is a toaster converts electrical energy into heat energy?
Lucas is designing an electric bike. He wants to cover the wires with a material that does not conduct electricity to keep the rider safe. What would be the best material for Lucas to use?
What is plastic? (Other insulators include rubber, wood, and glass; but plastic would be the best option for Lucas to use on his electric bike.)
The type of energy stored in a battery
What is chemical energy?