Vocabulary
A form of energy that allows you to see objects
Light energy
Fireworks consist of three main types of energy. Sound, Light, and __________.
Thermal
How do dolphins communicate using special vibrations and sounds?
Energy is transferred through the sounds they make.
A conductor is a material in which electricity _______. Flows easily or increases the number of particles.
A material through which electricity flows easily
What type of energy travels in waves and produces sounds from vibrations.
Sound energy
A firetruck's siren and flashing lights produce sound, light, and electrical energy. True or False.
False. They do not produce electrical energy.
What is the force called when two hands (objects) are rubbed together?
Friction
To stop a drum from producing sound, you would ______.
Stop it from vibrating
In an electric circuit, a battery can act as a ______.
Voltage source or Conductor
Voltage source
What type of energy involves circuits?
Electrical energy
A lamp changes __________ energy to light energy.
Electrical
It is very hot outside and you walk barefoot on hot pavement. Heat energy was transferred from the _________ to the _________.
Pavement to feet.
How does sound energy travel?
In waves
What does a switch in a circuit do?
Allows or stops the flow of electricity
A pom-pom launcher transfers _______ energy to _________ energy.
Potential energy to Kinetic energy
Stored energy to energy of motion
The sun is a form of light energy for the earth. True or False
True
A hot-air balloon is an example of convection. True or False
True
A fan is plugged into an extension cord. The extension cord is plugged into a wall outlet. How does the extension cord help the fan work?
The extension cord transfers electric currents from the outlet to the fan.
An object in an electrical circuit that resists the flow of energy is called a ______. Resistor or Circuit
Resistor
A farmer needed to keep his baby chicks warm. He placed a light in their cage. Which sentence best explains the farmer's thinking of placing a light in the cage?
The farmer thought the light would transfer thermal energy to the chicks.
How does heat travel from the sun to the earth?
Through Radiation
Why are sounds not heard in space?
There is no medium for sound to travel through.
Space is a vacuum with no particles to travel through
For a flashlight to turn on, chemical energy from the batteries changes to electrical energy that flows to the lightbulb. The lightbulb changes electrical energy into light energy. What is this an example of?
Energy Transformation or Energy being created
Energy Transformation