Heat and Energy
The heat we use is called?
What is thermal energy?
We measure waves by the distance from the top, or crest, of one wave to the top of the next. This distance is called
What is a wavelength?
The energy of place or position is called?
What is potential energy?
Energy is moving around you all the time— energy in the form of?
What is a soundwave?
The key to electronics is the?
What is a transistor?
______ is the amount of space the fluid occiupies.
What is Volume?
The light is ______ and _____ by trees.
What is absorbed and reflected?
Objects move in orderly ways that we can predict.
What is Newton's Law of Motion?
air. When a sound wave moves through air, the air molecules vibrate back and forth in the same direction as the sound. The vibrations push the air molecules close together, then pull them apart. These waves are called?
What is longitudinal?
It is how we turn the natural materials in the world into tools and machines to help us live.
What is technology?
In some materials, heat flows easily from molecule to molecule.
What are conductors?
A piece of clear glass or plastic that bends light waves as they pass through it.
What is a prism?
There is a force that changes the motion of all moving objects on Earth.
What is gravity?
The part of a longitudinal wave in which the molecules are pulled apart is called a?
What is a rarefaction?
In 1967, scientists discovered a way to have many tiny transistors work together in a?
What is a microchip?
Materials that don’t conduct heat well are called?
What are insulators?
This can absorb light waves and turn the energy into electricity.
What are solar cells?
The force that slows the motion of objects that are rubbing together.
What is Friction?
The number of wavelengths that pass a point in one second is called the?
What is frequency?
Electricity is the flow of?
What is an electron?
Every day, the sun gives off a lot of energy. It comes from the sun in rays or waves.
What is radiant energy?
A lens that can make objects look bigger is called a?
What is a convex lens?
Force equals?
What is mass times acceleration?
Sound waves move through air in a straight line. When they reach an object, they can be reflected or absorbed by the object. You have heard reflected sound waves as?
What is an echo?
We use heat to produce?
What is heat, light, sound, and motion?