Light Energy
What is light energy?
Light energy is the energy that comes from light sources, like the sun or a lamp.
What is heat energy?
Heat energy is the energy that comes from the movement of particles in matter.
What is sound energy?
Sound energy is the energy produced by vibrating objects that create sound waves.
What is hydropower?
Hydropower is energy created from the movement of water.
What is motion energy?
Motion energy is the energy of moving objects.
Name one source of light energy.
The sun.
Give an example of heat energy.
The warmth from a stove or a campfire.
Name a source of sound energy.
A musical instrument or a person speaking.
What is wind power?
Wind power is energy created from the movement of air.
Give an example of motion energy.
A rolling ball or a running person.
How does light energy help plants?
Plants use light energy to make their food through photosynthesis.
How can heat energy change matter?
Heat energy can melt ice into water or boil water into steam.
How does sound travel?
Sound travels through air (or other materials) as vibrations.
How does flowing water create energy?
Moving water turns turbines, which generate electricity.
How does motion energy relate to speed?
The faster an object moves, the more motion energy it has.
What happens to light energy when it hits a mirror?
It reflects off the mirror.
What is conduction?
Conduction is the transfer of heat through direct contact between materials.
What happens to sound energy when it goes through a solid?
It travels faster than it does through air.
What are wind turbines?
Machines that convert wind energy into electricity.
What happens to an object's motion energy when it slows down?
Its motion energy decreases.
Describe how light energy can create heat energy.
When light energy is absorbed by objects, it can increase their temperature, turning it into heat energy.
Explain how heat energy can affect the weather.
Heat energy from the sun warms the Earth, affecting wind patterns and weather conditions.
Describe how sound energy can be transformed into other types of energy.
Sound energy can be turned into electrical energy using a microphone.
Explain how hydropower is a renewable energy source.
It uses the natural water cycle, which continuously replenishes water.
Explain how machines use motion energy.
Machines convert energy from one form to another, like turning electrical energy into motion energy to do work.