Energy Basics
This is the ability to cause motion or change in matter.
What is energy?
When heat moves from a hot object to a cooler one, it causes this to change.
What is temperature?
A circle of materials that lets electricity flow through it is called this.
What is an electric circuit?
When electrical energy turns into light on a bulb, this is happening.
What is energy transformation?
A material that lets electricity flow easily is called a…
What is a conductor?
True or False: Energy can only move from hot to cooler objects.
What is True? (Energy transfers as heat from hot objects to cold objects.)
When you touch a cold spoon and it warms up in your hand, this has happened.
What is energy transfer as heat?
For electricity to flow, a circuit must be this — with no breaks.
What is complete? (It must be a complete loop.)
Electrical energy can change into all of these forms except: light, heat, sound, motion, or ice cream energy?
What is ice cream energy? (That’s not a scientific form.)
Materials that do not let electricity flow well are called this.
What are insulators?
Energy is never created or destroyed, but it can change forms. This idea is called this.
What is conservation of energy?
Heat always moves from this kind of object to this kind of object: warmer or cooler?
What is from warmer to cooler?
This part of a circuit provides the energy needed to make electricity flow.
What is a battery (or power source)?
A fan plugged into the wall changes electrical energy into this type of energy.
What is motion energy?
Name one material that is a good electrical conductor.
What is metal (examples: copper, aluminum)?
A parked bicycle at the top of a hill has energy because of its position. This type of energy is called this.
What is stored energy (or potential energy)?
A metal spoon gets hot in a bowl of soup faster than a plastic spoon because metal is a good…
What is a heat conductor?
If a circuit has a gap or break, electricity will do this.
What is stop flowing?
When a toaster is on, electrical energy changes into these two forms.
What are heat energy and light energy?
Why are pot handles often made of plastic or wood instead of metal?
What is they are insulators and reduce heat transfer?
A rolling ball uses energy because it is moving. This type of energy is called this.
What is motion energy (or kinetic energy)?
Explain why a jacket keeps you warm even though it does not create heat.
What is it traps heat and slows energy transfer?
Why is it safer to cover wires with rubber instead of metal?
What is rubber is an insulator and does not let electricity flow easily?
List two energy transformations that happen when you turn on a TV.
What is electrical → light and sound?
If electricity flows through a wire but not through the plastic coating, what does this show about the materials?
What is the wire is a conductor and the plastic is an insulator?