Energy Basics
What is energy ?
The ability to make things move
Potential Energy
When a battery powers a phone, what happens to the battery’s energy?
It decreases as energy is transferred ?
What does the C in CER stand for ?
Claim
True of False: Phones can make their own energy
False
A rolling ball had what kind of energy ?
Kinetic Energy
What is energy transfer?
Energy moving from one object to another
What type of energy is stored in food ?
Chemical Energy also stored in body as potential energy
Give on example of a good source of evidence ?
Data, observations, scientists, researches, engineers...
Where does the energy in food originally come from ?
The sun
Why does a stretched rubber band have potential energy ?
Because it can cause movement when released
What is energy conversion?
Energy changing from one type to another ?
Why is food like a battery ?
Because it stores energy that can be used later ?
Why is reasoning important in a CER ?
It explains why the evidence supports the claim ?
If a fan is spinning, how do you know it has energy?
It is moving, and energy is the ability to make things move or change)
Give an example of something with potential energy that can become kinetic
A skateboard at the top of a ramp, food, a charged battery
In a solar panel, what energy is converted into electrical energy?
Light energy
What happens to the energy in food after you eat it?
It is transferred and converted into movement, heat, or other forms
Claim – “A phone has energy.” What evidence could support this?
It can power music, light up, or vibrate
Why do scientists say energy cannot be created?
Because energy only transfers or converts; it always comes from somewhere else
Compare potential and kinetic energy
Potential = stored energy, Kinetic = energy of movement
Trace the energy transfer in this system: Sun → plant → person eats food → runs
What type of energy exists at each step and what does it become
Sunlight → chemical energy in plant → chemical energy in person → kinetic energy when running
If a person eats food, where did the energy in that food originally come from?
The sun, through photosynthesis in plants
How would you explain (Reasoning) why food gives people energy?
Food has stored chemical energy that transfers to the body, letting it move or change