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Module Objectives
Module Objectives
1) Explain the difference between kinetic and potential energy
2) Determine which factors affect kinetic and potential energy
3) Describe how speed affects kinetic energy
4) Describe how height affects potential energy
5) Analyze how energy transformations within closed kinetic and potential energy systems
6) Understand the mathematical relationship between kinetic energy and speed
7) Understand the mathematical relationship between potential energy and height
8) Create a graph that illustrates relationships between kinetic energy to mass and speed
9) Create a graph that illustrates relationships between potential energy to mass and height
Energy is the ability to move matter or change matter in some other way
Energy is the ability to move matter or change matter in some other way
Later on we will learn that energy also is the ability to do work (using a force to move an object a distance)
Later on we will learn that energy also is the ability to do work (using a force to move an object a distance)
When we measure energy, we measure using the units Joules (J)
When we measure energy, we measure using the units Joules (J)
Energy can take on many forms and is divided into two main types
Energy can take on many forms and is divided into two main types
- Kinetic
- Potential
Kinetic energy is the energy of motion.
Kinetic energy is the energy of motion.
If an object is heavy, it tends to be harder to get it to start/stop moving
If an object is heavy, it tends to be harder to get it to start/stop moving
If an object is moving fast, it's very hard to slow it down
If an object is moving fast, it's very hard to slow it down
Scientists use this formula to calculate kinetic energy:
Scientists use this formula to calculate kinetic energy:
Potential energy is stored energy.
Potential energy is stored energy.
If an object is heavy, it's harder to lift it up on a shelf and hurts more if it falls on you
If an object is heavy, it's harder to lift it up on a shelf and hurts more if it falls on you
If an object is moving fast, it's very hard to slow it down
If an object is moving fast, it's very hard to slow it down
Scientists use this formula to calculate kinetic energy:
Scientists use this formula to calculate kinetic energy:
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