Vocabulary
KE & PE
Energy II
Changes in Energy & Heat Transfer
Forms of Energy
100
the ability to do work
energy
100
Explain what happens to the potential energy of a rock as it falls off the side of a cliff.
The potential energy decreases as the kinetic energy increases.
100
Riding a bike is an example of this kind of energy.
kinetic (motion/mechanical/movement) energy
100
Heat Transfer: Heat moves this way.
from warmer areas to cooler areas
100
the energy that comes from a substance whose molecules are vibrating faster due to a rise in temperature.
heat or thermal energy
200
The energy of motion
mechanical energy
200
Where would this baseball have the greatest amount of kinetic energy?
Z
200
this form of energy cooks food in boiling water
thermal/heat energy
200
a light bulb converts electrical energy into which of the following energy?
light only
heat and light
heat only
light and motion
heat and light
200
A car driving is an example of what kind of energy?
Mechanical Energy
300
______ energy is the only source of energy we can see.
Light Energy
300
Which point on the pendulum's swing represents the minimum potential energy?
B
300
This is the energy of motion.
kinetic (mechanical/movement) energy
300
A metal spoon is placed in a pot of boiling water. Why does the spoon become hot over time?
The particles in the water collide with particles in the spoon, which them collide with other particles in the spoon, thus transferring thermal energy.
300
music coming from the radio, your loud vacuum cleaner, people talking on tv are all examples of this type of energy
sound energy
400
This word means to change
transform
400
Instead of rolling down the ramp over the step, imagine the ball falls off the back of the ramp directly to the ground. What is the amount of potential energy remaining after the ball lands on the ground?
0J
400
Both of these types of energy produce "waves" and are a part of our bodies' senses. Some examples are your tv, and your phone
Sound & light energy
400
A hair dryer transforms _______energy to _____ ,________, & ________
electrical to mechanical, sound, and heat
400
Which of these is not a form of energy?
Kinetic (motion)
Thermal
Chemical
Power
Power
500
The Law of Conservation of Energy states this.
What is that energy is never created or destroyed, it is only changes from one form to another.
500
Four objects are on a shelf 1.5 meters above ground: a 350-gram trophy, a 100-gram picture frame, a 225-gram book, a 600-gram vase. Which object has the most potential energy?
trophy
500
Energy at rest is what kind of energy?
potential (stored) energy
500
Based on the principles of convection, conduction and thermal radiation, which scenario below is most similar to the following situation?
You put a heating pad on your back after exercising.
A) The sun warming up the roof on a house.
B) Cold water sinking in a pot of water being warmed up on the stove.
C) Feeling a metal wire get warmer as you roast a marshmallow over a fire.
D) Warm air rising in a room where the air is moving.
C
500
What does the acronym MELTS stand for?
Mechanical
Electrical
Light
Thermal
Sound