Category 1 Lesson 1 – Energy Basics
What is energy?
Answer: The ability to do work
What is kinetic energy?
Answer: Energy of motion
What is thermal energy?
Answer: The total kinetic energy of particles
What are particles always doing?
Answer: Moving
What is matter?
Answer: Anything that has mass and takes up space
What type of energy helps us see?
Answer: Light energy
What is an energy transformation?
Answer: When energy changes from one form to another
What is temperature?
Answer: The average kinetic energy of particles
What happens to particles when heated?
Answer: They move faster
What is matter made of?
Answer: Atoms and molecules
What type of energy is stored in food?
Answer: Chemical energy
In a flashlight, what type of energy comes first?
Answer: Chemical energy
What tool is used to measure temperature?
Answer: A thermometer
What happens to particles when cooled?
Answer: They move slower
What happens when matter gains thermal energy?
Answer: Particles move faster and spread apart
What is potential energy?
Answer: Stored energy
What type of energy powers devices?
Answer: Electrical energy
What are the freezing points of water?
Answer: 32°F or 0°C
What two things does thermal energy depend on?
Answer: Temperature and mass (number of particles)
What happens when matter loses thermal energy?
Answer: Particles move slower and stay closer
What happens when potential energy begins to move?
Answer: It changes into kinetic energy
What type of energy involves movement of objects?
Answer: Mechanical energy
What are the boiling points of water?
Answer: 212°F or 100°C
Which has more thermal energy: a bucket or a cup at the same temperature? Why?
Answer: The bucket because it has more particles
What is thermal expansion?
Answer: Matter expands when heated and contracts when cooled