VOCABULARY
The ability to do work or cause change
Name two sports that have an energy transfer when the sports equipment collides.
Tennis racket/ball, baseball/ball, football/kicker, hockey stick/puck
How would kinetic energy of the dominoes be affected if the first domino did not hit the second?
True or False
Electrical particles if both negative and both positive will attract to one another?
False they will repel
Sound wave
What is energy we can see?
A. Sound
B. Potential
C. Kinetic
D. Light
What is D. Light
What type of energy transfers between the spheres in Newtowns Cradle?
A. Potential B. Kinetic C. Thermal
What is kinetic
What form of energy is used by a cell phone charger?
Electrical
A material that does not allow electricity to flow.
an insulator
Describe the particles in thermal energy.
Hot - slow and close together
Hot - rapid and spread out
Cooler - Slower and close together
Cooler - rapid and spread out
What is hot - rapid and spread out, cooler - slower and close together
Lamar plugs a lamp into a wall. Electricity goes from the outlet through the cord, and the light bulb. Which best describes the cord?
A. Conductor
B. Insulator
C. Resistor
What is A. Conductor
Suppose you went bowling without a bowling ball and had only a softball and a large plastic ball to hit the pins. How would the speed and motion of these objects be different from when you use a heavy bowling ball?
The plastic ball and the softball may need more energy in order to go further.
How does a toaster cook toast?
The heat coils of the toaster transfer thermal energy to the toast by radiation.
In our class model of a circuit identify the source and one component that can open or close the circuit.
Battery and switch
How is energy transformed as it begins to travel to the ground?
Potential energy is transformed into kinetic energy
To change from one form to another.
Example: Potential energy changes to kinetic energy when an object is in motion.
Transform
When a bowling ball hits the pins what type of energy transfer occurs?
sound, heat, kinetic
jellyfish
The higher the drop the more energy the object gains.
A ball begins to roll downhill. As it begins to roll it gains speed. How are the ball's energy and speed related?
The faster the ball rolls, the more energy it will have.
The flow of charged particles in the same direction.
What is electric current.
When a fast marble collides with a slower marble what is the outcome?
This type of energy can transfer through solids, liquids, and gases.
Sound
How do electric currents flow in circuits?
The battery provides energy that causes the electric energy to flow. The wires give the current a place to flow and travel.
What causes an object that is not moving to gain kinetic energy?
Force