Transcript 1. Jan turns on a lamp so she can read. What type of energy

Week 10
1. Which of the following
correctly states the law of
conservation of energy?
a. Energy cannot be created or destroyed but
can be converted from one form to another.
b. Energy can be create or destroyed, as well as
being converted from one form to another.
c. Energy is created when it is converted from
one form to another.
d. In most systems, some energy is destroyed
and lost as heat.
2. When the strings of the acoustic guitar
are plucked they vibrate. These vibrations
are transferred to particles in the air.
What kind of energy is produced by
these vibrating particles?
a.
b.
c.
d.
Chemical energy
Nuclear energy
Electrical energy
Sound energy
3. Jan turns on a lamp so she can
read. What type of energy
provided by the lamp helps Jan
read?
a.
b.
c.
d.
Nuclear energy
Electromagnetic energy
Chemical energy
Thermal energy
4. What form of energy is
frequently produced as a result
of friction?
a.
b.
c.
d.
Electromagnetic energy
Chemical energy
Potential energy
Thermal energy
5. When moving air or wind strikes
the blades of a windmill, it causes
the blades to turn. What kind of
energy is involved in the movement of
the windmill blades?
a.
b.
c.
d.
Mechanical energy
Nuclear energy
Electrical energy
Electromagnetic energy
6. What type of energy is
released if the forces that hold
the protons and neutrons of an
atom in place are overcome?
a.
b.
c.
d.
Electrical energy
Nuclear energy
Electromagnetic energy
Thermal energy
7. Many household devices use
batteries as an energy source.
What kind of energy is stored in
a battery?
a.
b.
c.
d.
Chemical energy
Electrical energy
Thermal energy
Nuclear energy
8. An apple is hanging from a tree branch.
A gust of wind blows the tree, and the
apple falls. Which of the following
describes the apple’s energy just as the
apple hits the ground?
a. Its potential energy due to position is
zero.
b. Its kinetic energy due to position is zero.
c. Its potential energy is half its kinetic
energy.
d. Its kinetic energy is equal to its potential
energy.
9. As a ball rolls down a hill, it
has less potential energy than it
did at the top of the hill. Some of
the ball’s potential energy
a.
b.
c.
d.
Disappears
Decreases friction.
Creates even more energy.
Changes to kinetic energy.
10. Which of the following
changes chemical energy into
mechanical energy?
a.
b.
c.
d.
Blender
Flashlight
Ceiling fan
Human body