Energy Transfer
A light bulb produces light by:
a. converting electrical energy to light energy
b. burning electrical energy
c. converting heat energy to chemical energy
d. burning chemical energy
a. converting electrical energy to light energy
Energy that is stored is _________
potential energy
Sound energy travels in ________.
waves
What is endothermic?
energy is absorbed
As a marble rolls down a ramp, the potential energy will _____.
a. increase
b. decrease
c. stay the same
b. decrease
A vibrating tuning fork is placed against a ping-pong ball suspended from a string. What energy transfer is happening?
a. potential is transferred from tuning fork to ping-pong ball
b. kinetic is transferred from ball to tuning fork
c. kinetic is transferred from tuning fork to ball
d. potential is transferred from ball to tuning fork
c. kinetic is transferred from tuning fork to ball
Potential + Kinetic = ________ Energy
Mechanical
Every sound has a _________.
vibration
What is exothermic?
energy is released
The total mechanical energy in an object is equal to:
a. potential energy X its kinetic energy
b. potential energy + its kinetic energy
c. potential energy - its kinetic energy
d. potential energy divided by its kinetic energy
b. potential energy + its kinetic energy
In a simple circuit, which forms of energy are found?
a. chemical, mechanical, light, and heat
b. chemical, electrical, light, and heat
c. mechanical, electrical, light, and heat
d. chemical, electrical, light, and mechanical
b. chemical, electrical, light, and heat
Name something that contains chemical energy.
battery, chemical reactions, etc.
Law of Conservation of Energy: Energy ______be _______ nor ________, it simply ______ _______.
Energy cannot be created nor destroyed, it simply changes form.
How could you tell if a reaction between steel wool and vinegar is exothermic?
a. measure how much vinegar is absorbed by the steel wool
b. measure the mass of the chemicals before and after
c. measure the beginning and ending temperature
d. look for a color change
c. measure the beginning and ending temperature
Where is potential and kinetic energy both present?
a. a ball at the top of a ramp
b. a ball in the middle of the ramp
c. a ball at the end of a ramp
b. a ball in the middle of the ramp
a. an insulator and energy source
b. conductor and light bulb
c. conductor and insulator
d. conductor and energy source
d. conductor and energy source
Name something that contains electrical energy.
phone charger, tv, light, etc.
Pitch is how _____ or _____ a sound is.
high or low
Exothermic or Endothermic?
Caramelizing sugar
endothermic
The form of energy that is in a battery is:
a. chemical kinetic
b. electrical kinetic
c. electrical potential
d. chemical potential
d. chemical potential
What is the proof that a circuit has been completed?
the light bulb glows
Name 5 types of energy.
chemical, mechanical, sound, light, heat, kinetic, potential, electrical
Volume is how ______ or ______ a sound is.
loud or soft
Exothermic or Endothermic?
a chemical reaction with bleach in water
exothermic
Sound energy can travel through:
a. gas
b. liquid
c. solid
d. all of the above
e. none of the above
d. all of the above