Conservation of Energy
Presentation
•
Science, Physics
•
7th - 9th Grade
•
Practice Problem
•
Medium
+1
Standards-aligned
Braden Sparks
Used 27+ times
FREE Resource
4 Slides • 8 Questions
1
Conservation of Energy
By Braden Sparks
2
It can only be transferred back and forth between types of Kinetic and Potential energies.
Energy cannot be created nor destroyed
3
However much energy there was since the Big Bang, is exactly how much energy there is in the universe today.
Energy does not randomly appear or disappear.
Energy cannot be created nor destroyed
4
The Law of Conservation of Energy
Energy is not created nor destroyed. Just transferred.
Here's an example:
Atoms in the Sun's core fuse together and release light energy.
The light hits plants. Plants turn that into chemical energy.
Humans can eat those plants for energy (chemical energy). Or we can light it on fire! Which is the chemical energy being converted to thermal energy.
5
Multiple Choice
"energy cannot be created nor destroyed"
law of energy
law of potential
law of conservation of energy
law of the eternal energy principle
6
Multiple Choice
can energy be randomly generated out of thin air?
Yes
No
No way to know
7
Multiple Choice
Energy cannot be created nor destroyed. Just _________
heat
transferred
do it
manifested
8
Multiple Choice
However much energy was created since the Big Bang, is the _____ amount of energy that there is today in the universe
potential energy
kinetic energy
energy
same
less
9
Multiple Choice
If energy is NOT created or destroyed, what is happening to it?
energy is transferred between kinetic energy types
energy is transferred between kinetic and potential energies
the big bang has to create more energy
it is being lost and gained by the universe
10
Multiple Choice
all the energy in the universe was created in the _______
suns core
big bang
energy types - Potential and Kinetic event
11
Multiple Choice
Which is a good example of energy transfer?
the Sun using nuclear potential energy to send electromagnetic energy to earth as light
the Sun creating energy and then destroying it when the light leaves the surface
animals eating vegetables and then the energy disappears forever
potential energy vaporizing and creating more kinetic energy from thin air
12
Multiple Choice
if there was "X" amount of energy created in our Universe during the Big Bang almost 15 billion years ago, how much is there in todays universe?
less than "X"
more than "X"
"X"
"Y"
Conservation of Energy
By Braden Sparks
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