What is Energy
What is the definition of energy?
Energy is the ability to do work or cause change.
What type of energy is associated with motion?
Kinetic energy.
What is potential energy?
Stored energy ready to be used.
What is an example of energy transformation in a roller coaster?
At the top, it has potential energy; going down, it has kinetic energy.
What is sound energy?
Energy that travels in waves through matter, created by vibrations of objects.
Name two main types of energy.
Kinetic and Potential energy.
Name an example of kinetic energy.
A rolling basketball or a running student.
Identify one type of potential energy.
Gravitational, Elastic, or Chemical energy.
When you jump, what type of energy do you start with?
Potential energy when crouching.
Name a real-world example of sound energy.
Musical instruments or your voice.
Can energy be created or destroyed?
No, energy cannot be created or destroyed; it can only change forms.
What factors affect the amount of kinetic energy an object has?
Mass and speed.
What is an example of gravitational potential energy?
A book on a shelf.
Describe the energy transformation that occurs during jumping.
Potential energy transforms into kinetic energy when jumping up.
What is electrical energy?
Energy that results from moving electrons.
What happens to kinetic energy when an object's mass increases?
Kinetic energy increases when mass increases.
If a car is moving faster, what happens to its kinetic energy?
It increases.
How does elastic potential energy work?
It is stored in objects like a stretched rubber band.
What happens to energy in a swinging pendulum?
It changes between potential and kinetic energy as it swings.
Give an example of how electromagnetic energy is used.
In TV remotes or cell phones.
Give an example of something that uses energy in everyday life.
Answers may vary (e.g., a car, a light bulb).
Explain how kinetic energy changes as a roller coaster goes down a hill.
Kinetic energy increases as the roller coaster moves down.
Describe how potential energy and kinetic energy are related in a pendulum.
As the pendulum swings, it changes from potential energy at the top to kinetic energy at the bottom.
Why is understanding energy transformation important?
It helps us understand how energy is used and conserved in systems.
Explain what nuclear energy is.
Energy that comes from changes in an atom's nucleus.