Lesson 2.1
What is a generator?
a machine that can convert kinetic energy into electrical energy
What is convert?
to change from one type to another
What do students write in scientific arguments?
They write claims, evidence, and how their evidence supports the claim.
How long are fossil fuels going to last?
a century
What kind of energy do batteries have?
Potential Energy
Can energy be created or destroyed?
No, but it can be transferred from one object to another.
Where can the rescue team get energy for their flashlights?
They can get some energy from their body.
How do flashlights get kinetic energies?
When the person rotates the crank, the flashlight gets kinetic energy that will convert into light energy.
What makes the flashlights shine?
Batteries.
Can energy be converted while transferring from one object to another?
Yes, energies can be converted.
What is the purpose of writing scientific arguments?
To convince people how their evidence supports the claim and how the claim they choose is stronger than the other claims.
What do people use to connect generators and use energy?
flywheels
What do students use to investigate energy?
Simulation and Sorting Tool
Where do objects get energies?
Sun, Human Body, Battery, and Fuel
Why is adding words from the word bank important?
It can improve the student's writing skills and also help them learn more about the unit.
Scientists are working to find better ways to store what?
solar and wind energy
Can an object get energy from another object that has the energy? If it does, give an example. If it doesn't, explain why not.
True, solar panel gets energy from the sun.
When the potential energy from the battery gets transferred to the flashlight, what kind of energy does the potential energy convert into?
light energy
Which two energy sources are best for the rescue workers?
The solar cells and human-powered generators.
What are some ways to release kinetic energy?
bouncing, stretching, compressing, and turning a crank.