A
What are the 5 types of potential energy?
Gravitational, elastic, chemical, nuclear, and magnetic
+3
What are the 5 types of kinetic energy?
Mechanical, electrical, thermal, sound, light
-5
Give me a definition and example of chemical energy.
The potential energy that is stored in the chemical bonds of a substance. (ex. The energy stored in the food we eat, the energy stored in gasoline for the car)
+7
All waves can be divided into two categories. What are those two categories?
Mechanical and Electromagnetic
+8
What happens to the energy of a wave if I increase the amplitude?
-6
Give me a definition and example of light energy.
Light energy comes from the waves that we perceive with our eyes. It is always moving. (ex. Lightbulb, flashlight, laser)
-2
Give a definition and example of nuclear energy
The potential energy of the particles inside an atom’s nucleus. (ex. Nuclear fission in the sun, nuclear power plants)
+9
Define crest and trough.
-2
Give me a definition and example of magnetic energy.
The potential energy an object has due to its interactions with a magnetic field.
(ex. Magnets, a compass, an MRI machine)
-1
Give me a definition and example of electrical energy.
Electrical energy is the energy that comes from an atom’s electrons. Electrons carry negative charges and flow through different materials. (ex. Static electricity, charging your phone)
+7
Define wavelength.
The wavelength is the horizontal distance between either crest and crest, or trough and trough.
+2
What happens to the energy of a wave if I increase the wavelength?
The energy decreases.
-6
Give me a definition and example of mechanical energy.
Mechanical energy is potential energy plus kinetic energy. It is energy that could be used being added to energy that is being used. (ex. Using scissors, riding a bike, lifting up a hammer)
+4
Give me a definition and example of thermal energy.
Thermal energy comes from atoms moving around and bumping into each other. This is where heat comes from. The faster an atom moves, the more thermal energy there is. (ex. A space heater, rubbing your hands together)
-8 points
Give me a definition and example of sound energy.
Sound energy is created as sound waves vibrate through matter. Sound waves move similarly to throwing a rock in a pond. The closer the vibrations are to the source, the more energy there is. (ex. Musical instruments, sonar equipment, echolocation)
-4
Give an example of a type of energy that we studied with our balloon launchers. How did we manipulate that type of energy in the experiment?
Elastic - how far we stretched the balloon either increased or decreased the amount of energy.
Gravitational - the mass of the object we launched influenced the amount of energy
+1
Demonstrate a longitudinal wave with a slinky.
+3
Define amplitude.
Amplitude is the vertical distance measured between either the crest or trough and the origin line.
+5
Define frequency
The frequency is the amount of crests passing through a certain point in a given amount of time.
+4
Demonstrate a transverse wave with the slinky.
+10
Give me a definition and example of gravitational energy.
The potential energy an object has due to its position in a gravitational field. (ex. A ball held above your head, a book on a high shelf)
+6
Give me a definition and example of elastic energy.
The potential energy an object has due to being compressed or stretched. (ex. A rubber band being stretched, a spring being compressed)
+1
Give me an example of a longitudinal wave and a transverse wave
Longitudinal - sound waves
Transverse - water waves
-3
What happens to the energy of a wave if I decrease the frequency?
The energy decreases. -10
Mechanical waves can be divided into two categories. What are those categories?
+5