Forces and Motion
The force that naturally pulls objects towards the center of the earth.
What is gravity?
Stored energy.
What is potential energy?
Heat always travels in this direction.
What is hot to cold?
All waves carry______
What is energy?
When light bounces of an object.
What is reflection?
A push or a pull
What is force?
Energy of motion.
What is kinetic energy?
When water is heated the molecules move______
What is faster?
The distance between two troughs.
What is wavelength?
The bending of light as it passes from one substance to another.
What is refraction?
A force that opposes motion.
What is friction?
Energy stored in natural gas.
What is chemical energy?
Heat transfer through space or air.
What is radiation?
The number of waves that pass a given point over a period of time.
What is frequency?
True or False- a banana is yellow because it absorbs only the color yellow.
False- it absorbs all colors EXCEPT yellow, it reflects the color yellow.
An object at rest tends to stay at rest and an object in motion tends to stay in motion.
What is inertia?
True or False- When energy changes from electrical to heat energy, the total amount of energy increases.
False
Heat transfer by direct contact.
What is conduction?
Sound waves will become louder when increasing the_______
What is amplitude?
The energy change when a person eats food and then exercises.
What is chemical to mechanical energy?
A force that produces a change in motion.
what is an unbalanced force?
The principle that energy cannot be created or destroyed, but can change forms.
What is the Law of Conservation of Energy?
Heat transfer in liquids and solids due to density differences.
What is convection?
The increase in the frequency of a sound as the source becomes closer.
What is Doppler Effect?
The energy transformation that occurs when turning the switch on in a classroom.
What is electrical to light energy?