Sound
Sound energy travels in ______
waves
What is kinetic energy?
energy of movement
A simple circuit has which types of energy?
chemical, electrical, light, and heat
What is an endothermic reaction?
heat is absorbed
True or False Potential and Mechanical Energy are the same.
FALSE
Sound energy can travel through
a. gases
b. liquids
c. solids
d. all of the above
d. all of the above
What is potential energy?
stored up energy
A light bulb produces light by converting_____ to ______
electrical energy to light energy
What is a exothermic reaction?
heat is relased
Give an example of potential to kinetic to potential energy.
ex:
A vibrating tuning fork is placed against a ping-pong ball suspended from a string. What describes the energy transfer.
a. potential from the tuning fork to ball
b. kinetic from ball to tuning fork
c. kinetic from tuning fork to ball
d. potential from ball to tuning fork
c. kinetic from tuning fork to ball
Mechanical energy is
a. potential energy times kinetic energy
b.potential energy plus kinetic energy
c.potential energy minus kinetic energy
d. potential energy divided by kinetic energy
b. potential energy plus kinetic energy
A complete circuit must have
a. an insulator and energy source
b. a conductor and light bulb
c. conductor and insulator
d. conductor and energy source
d. conductor and energy source
How could you tell if a reaction between steel wool and vinegar is exothermic?
measure the beginning and end temps. of the mixture
The Law of Conservation of Energy states that?
Energy cannot be created or destroyed it only changes form.
volume
a. when the ball is at the top of the ramp
b. when the ball is in the middle of the ramp
c. when the ball is at the bottom of the ramp
b. middle of the ramp
What form of energy is in a battery?
Give one example of electrical energy converting into heat energy.
ex: lamp to light bulb
Give an example of electrical energy converted to sound energy.
ex. smartboard to sound
How high or low the sound is is the ____.
pitch
As a marble rolls down a ramp, its potential energy will
a. increase
b. decrease
c. stay the same
b. decrease
What is the proof that a circuit is complete?
the light bulb starts glowing
Why is bleach and water a chemical reaction?
Name 6 of the 8 types of energy.
electrical
light
potential
kinetic
heat
sound
mechanical