Classroom Rules

Green Light: Go time! The lesson is being
taught and the classroom will be on task
with the lesson. 100% Focused. No talking
and do your best to be on task.

Yellow Light: Cautiously thinking. Raising
our hands to ask questions. Classroom
discourse allowed.

Red Light: Classroom activity stops.
Any issue will be dealt with. Any
talking or disruptive behavior will
result in possible loss of recess time,
loss of free time, e-mailing parents,
and/or other corrections.

Classroom Rules

All lights off : Free
time to work on
other school work
and get ready for
the next class.

GOLD LETTER notes

Potential and Kinetic Energy

• Potential Energy (PE)
  
  

• Kinetic Energy (KE)

​Two Types of Energy

The ability to MOVE or CHANGE matter in some way.

The ability to do WORK.

Science Definition

What is Energy?

STORED energy

or

Energy that is ready to be released.

​

Potential Energy

Energy that is released

or

Energy in motion

​

Kinetic Energy

​These Pandas are close to the ground. It did not take a lot of work to get there, so they have very little PE.

​​Less Potential Energy

This car needed a lot of energy to get to the top of the hill. That means this car as a lot of PE.

More Potential Energy

​How does position affect PE?

​The more massive an object is, the more work is required to move it.

The more work required to move an object - the more PE an object has.

​

Potential Energy and Size

Any moving object has Kinetic Energy

The faster an object is moving, the more Kinetic Energy it has.

The more massive an object, the more KE it has

​

How does Kinetic Energy Work?

Kinetic Energy Formula

Yes! Objects in motion can have a mix of PE and KE

Can something have both PE and KE?

​As the ball rolls down the hill, PE is converted into KE. While in the middle of the hill, the ball has BOTH!

Inertia

• Inertia is the tendency of an object to resist a change in its motion. All objects have inertia, whether they are stationary or moving.

• Inertia explains Newton’s first law of motion, which states that an object at rest will remain at rest and an object in motion will stay in motion unless it is acted on by an unbalanced force.

• That’s why Newton’s first law of motion is sometimes called the law of inertia.

● Acceleration is the change in velocity per unit time.
● Acceleration can result from

A change in speed (increase or decrease)

A change in direction (up, down, back, forth...)

Changes in both

​

What is Acceleration