Transcript Empty space - Net Start Class

At what point in the
picture above do we
have the most potential
energy?
At what point in the
picture above do we
have the most kinetic
energy?
Point 4
Point 1
What is the difference
between potential and
kinetic energy?
Potential = Stored energy
Kinetic = energy in motion
How are potential and
kinetic energy similar?
In the picture above, how
can I increase the amount
of potential energy that
the marble has?
Add more books (increase the height)
Put the points in order
of increasing kinetic
energy:
1, 2, 3, 4
(increasing kinetic = least to greatest)
A) Neither can be created or destroyed
B) Neither can be shown when the
object is moving
C) Both can be shown when the object
is moving
D) Both can be created and destroyed
Correct answer: A
When riding on a rollercoaster,
we experience the most
potential energy at the ______
point and the most kinetic
energy at the _______ point.
lowest; highest
Answer Choice B
Using the above picture,
place the points in order
of increasing potential
energy.
A) The soda will get cooler and the ice cube will melt
B) The soda and ice cube will stay the same temp
C) The soda will get warmer and the ice cube will get cooler
D) The soda will get cooler and the ice cube will stay frozen
A) Kinetic Energy B) Potential Energy
C) Thermal Energy D) Nuclear Energy
Nico kicked a soccer ball as shown
above. How could he decrease
the amount of potential energy
in the soccer ball?
Don’t kick the ball as high (decrease
the height)
Energy is always created
Energy is never created or destroyed
Energy is destroyed
Energy is always created & destroyed
Answer Choice A
A)
B)
C)
D)
An ice cube is placed in a glass of
soda on a hot summer day and
left outside. Which of the following is
the predictable pattern of heat transfer?
Answer Choice B
What is the law of
conservation of
energy?
A battery is placed in a flashlight.
The flashlight is left on and shines
for 6 hours before the battery runs
out. What type of energy is
decreasing in the battery
as it powers the flashlight?
4, 3, 2, 1 (increasing = least to greatest)
Answer Choice A
Conduction = heat through touch
Convection = heat rises, cool sinks
Radiation = heat through empty space
What type of heat transfer is
Shown in the picture above?
Explain your answer
A) Conduction
B) Convection
C) Radiation
A
What type of heat transfer
is being shown at each letter?
Homer grabbed a hot toaster!!
What kind of heat transfer is he
experiencing?
A) Conduction
B) Convection
C) Radiation
A Conduction (touch)
C
Pictured above are churros under
a heat lamp. How are the churros
in the middle of of the pile
Receiving heat?
A) Conduction
B) Convection
C)Radiation
Conduction – the churros in the middle are
touching the churros on the top of the pile
B
Allisa was cooking in her kitchen
when she suddenly slipped
and fell on the hot stove. What
type of heat transfer is she
experiencing?
A) Conduction
B) Convection
C) Radiation
Radiation because the heat is
being transferred through empty space
Define the following words:
-Conduction
-Convection
-Radiation
A= Conduction (touch)
B= Convection
C= Radiation (empty space)
The picture above shows heat
transfer through
A) Conduction
B) Convection
C) Radiation
Pictured above are churros under
a heat lamp. How are the churros
on top of of the pile receiving heat?
A) Conduction
B) Convection
C)Radiation
When heat moves, it moves:
A) From hotter objects
To colder objects
B) From colder objects to
Hotter objects
C) It doesn’t move at all
Answer Choice A
Answer Choice B – the smoke (heat rises)
A – heat transfer through touch
Answer Choice C (the heat is moving through
Empty space)
The picture above shows heat
transfer through
A) Conduction
B) Convection
C) Radiation
The reason you drop to the ground
When there is fire.
A) Conduction
B) Convection
C) Radiation
Answer Choice C: heat through empty space
The minions are being warmed
by the sun. How are they
Receiving the heat?
A) Conduction
B) Convection
C) Radiation
Answer Choice C – heat through empty space
Chemical  Mechanical
What is the energy transformation
of the fan pictured above?
_______  _______
What energy transformation is the
gasoline power car pictured
above going through?
___  (3 energy types go here)
Electrical  Mechanical
Chemical  Mechanical/Thermal/Sound
Chemical  Electrical  Light
What is the energy transformation
being shown in this picture?
_____  ____  ____
Chemical  electrical  Light/Sound
Identify the energy transformation
Of the flashlight pictured above.
_______  _______  _______
Identify the energy transformation
Homer is going through when he
eats cake and then goes and works
out.
______  ______
Collin got a new iPhone 6 over the
weekend. What kind of energy
transformation is taking place
to power his phone?
______  ______  ______
Chemical  Electrical  Light
What energy transformation is the
wind turbine going through to power
the homes shown above?
What kind of energy
is found in a battery?
What kind of energy is
found in food?
______  ______
What energy transformation is
the above solar panel going
through to power the house?
_______  _______
Radiant (Light)  Electrical
Chemical Energy
What energy transformation is the
above speaker going through to
play music?
______  ______
Chemical Energy
Electrical  Sound
Mechanical  Electrical
True or False: When energy
changes from one form to
another, the energy is destroyed.
False – energy is NEVER destroyed
Moveable Pulley – the pulley moves
on the string
Identify the pulley pictured above
and give an advantage of using this
type of pulley.
Figure 1
When using a moveable pulley, the
amount of force _____ and the
direction the load moves _____.
Figure 2 Figure 3
Figure 4
Which pulley system pictured above
would require the least amount of
force to lift the load? Explain
Figure 4 – the more pulleys you add,
the less amount of force needed
Force decreases
Direction the load moves stays the same
Fixed Pulley– the pulley is attached
to the ceiling
When using a fixed pulley, the
amount of force _____ and the
direction the load moves
_______.
What kind of pulley is pictured
above? How did you know?
It’s a fixed pulley and it changes
the direction that you lift the load
What kind of pulley is pictured
above? How did you know?
Force stays the same
Direction the load moves changes
An inclined plane reduces the force
needed to move an object byA) Decreasing the pull of gravity
B) Decreasing the mass of the
object
C) Increasing the distance the
load has to move
True or False: When using a
simple machine, the amount of
work ALWAYS stays the same.
A pulley attached to the object
to be moved, which reduces
the force needed to move
the object is called a –
A) Fixed Pulley
B) Moveable Pulley
C) Fun Pulley
Answer Choice B
The force decreases
Answer Choice C
Force decreases
Distance increases
What is a disadvantage of using
an inclined plane?
As we increases the distance
of an inclined plane what happens
to the amount of force needed
to move the load?
True
When using an inclined plane, the
amount of force needed to lift the
load _________ and the distance
the load moves ____________.
It increases the distance that you move
the load
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