What is stored energy and the energy of position called?

1
What is stored energy and the energy of
position called?

• Potential energy

2
Why does the bi-metal bar curve when heat is
applied to it?

• Different metals expand at different rates

3
What is the energy of motion called?

• Kinetic energy

4
Give an example of an object going from potential
energy to kinetic energy

• A book falling off a shelf

5
Energy efficiency refers to .

• The amount of useful energy you receive

6
Someone turns on a switch to turn on a fan
100 joules of electrical energy in 70 joules
of motion energy out 20 joules of heat energy
out 10 joules of sound energy outHow much of
the energy is wasted?(not used for its intended
purpose)

• 30 joules heat sound

7
Elastic forces in which a force is applied can be
described as what type of energy be specific

• Stored mechanical - potential

8
Light is kinetic or potential?

• kinetic

9
Electricity is kinetic or potential?

• kinetic

10
Chemicals are kinetic or potential?

• potential

11
Nuclear is kinetic or potential?

• potential

12
Stored mechanical is kinetic or potential?

• potential

13
Gravitational energy is kinetic or potential?

• potential

14
Describe the amount of potential and kinetic
energy of a roller coaster at the top right
before going down

• Potential mucho
• Kinetic - little

15
One egg is dropped from a 3 story building and
another egg is dropped from a 1 story building,
which has the most gravitational potential energy?

• 3rd story building

16
Plants have which type of energy?

• Chemical / potential

17
Apple battery lab Pushing the same kind of
metal deeper into the apple resulted in this?

• No electrical current.

18
Apple battery lab Pushing different kinds
of metals deeper into the apple resulted in
this?

• More electrical current.

19
Apple battery lab Pushing different kinds
of metals deeper into the apple resulted in
this?

• More electrical current.

20
A reaction in which things feels warm to
touch?

• Exothermic

21
A reaction in which things feel cool to
touch?

• Endothermic

22
These two ingredients produce an endothermic
reaction

• Baking soda and vinegar

23
These two ingredients produce an exothermic
reaction

• Calcium chloride and water

24
Which is not one of the main forms of
energy light, thermal, petroleum, nuclear

• petroleum

25
I am the type of energy associated with
moving electrons

• Electricity

26
What happened when two different metals
touched in the apple battery

• Electrons jump from metal to metal taking the
  path of least resistance

27
Why is there an energy benefit to some
dark colored animals?

• Dark colors absorb thermal energy and can keep
  them warm in cold weather

28
Vibrations in the air are
consideredthis type of energy

• Sound

29
State the Law of Conservation of
Energy

• Energy cannot be created or destroyed. It can
  only be converted from one form to another

30
Give an example of an energy conversion
from our labs that goes from chemical energy to
thermal energy

• Calcium chloride water

31
I am the name given to the process in
which light energy is used to make a new
substance with chemical energy

• Photosynthesis

32
I am a change from one form of energy
to another

• Energy conversion or energy transformation

33
Give three different energy examples
in which electrical energy can be
produced.

• Motion (windmills)
• Radiant (solar panel)
• Chemical (battery)

34
Name 3 different types of energy
produced during collisions

• Thermal, sound and motion

35
What were the energy conversions in
the light stick lab?

• Chemical ? radiant

36
What were the energy conversions in
the radiometer lab?

• Radiant ? thermal ? motion

37
What were the energy conversions in
the sad ball lab?

• Motion ? sound ? thermal

38
What were the energy conversions in
the solar panel lab?

• Radiant ? electrical ? thermal

39
Paul Konerko hits one out of the park.
Describe the energy conversions that take place
starting from the sun/nuclear

• Sun / nuclear ? Chemical (him / from plants)?
  motion (swinging bat) ? thermal sound
  (collision hitting the ball) ? motion (ball
  going out of park) ? thermal (friction in the
  air)

40
Energy is the ability to

• do work

41
Which 2 factors are used to determine
whether an object has potential energy

• 1. stored energy
• 2. energy of position (gravitational)