Vocabulary
The ability to cause motion or create change:
a. conduction
b. energy
c. speed
d. temperature
b. energy
How does sound move?
In waves
In an electric circuit, what could be THE SOURCE of energy?
A battery
What is a CONDUCTOR?
A material that allows electric current to easily flow.
Which travels faster: a sound with a HIGH PITCH or a sound with a LOW PITCH?
high pitch
What kind of energy does a lightbulb produce?
What is an insulator?
A material that does not allow electrical current to flow easily.
True or False: Sound can travel through solids, liquids, and gases.
True.
What happens if a switch is open on an electric circuit?
Heat moves from HOT OBJECTS TO COLD OBJECTS
TRUE
What determines the pitch of a sound?
a. the speed of charged particles
b. the size of the sound source
c. the speed of vibrating particles
d. the temperature of the source
c. the speed of vibrating particles
Electric charges can be positive or negative. Which particles repel, or push away from eachother?
Two particles that have the same charge ++
What would be the best THERMAL CONDUCTOR?
a. plastic
b. paper
c. metal
d. wood
metal
What causes SOUND ENERGY?
a. heat
b. charged particles
c. light energy
d. vibrating objects
d. vibrating objects
What happens if the charges of a particle are OPPOSITE?
They attract/pull towards eachother