Kinetic vs. Potential Energy
What type of energy does a moving car have?
Kinetic energy
What is the highest point of a wave called?
Crest
What does each square on the periodic table represent?
An element
What do we call when substances change to form new substances?
A chemical reaction
What happens to energy in a closed system?
It is conserved — it cannot be created or destroyed.
A stretched rubber band has what type of energy?
Potential energy
The distance between one crest and the next is called what?
Wavelength
What is the smallest part of an element called?
An atom
Name one sign a chemical reaction has occurred.
Color change, gas formation, temperature change, or light produced
What kind of energy transformation happens when you plug in a toaster?
Electrical energy → thermal energy
True or False: An object must be moving to have potential energy.
False
Sound waves are what kind of waves — mechanical or electromagnetic?
Mechanical
What do we call the vertical columns on the periodic table?
Groups or families
When you bake a cake, is that a physical or chemical change?
Chemical change
When you eat food and run, what energy transformation happens?
Chemical energy → kinetic energy
If two objects have the same mass, which has more kinetic energy: the faster one or the slower one?
The faster one
True or False: Light can travel through space, but sound cannot.
True
Which element’s symbol is “O”?
Oxygen
When you mix vinegar and baking soda and see bubbles, what kind of change is happening?
Chemical reaction
Heat moving from a hot stove to a pot is what type of energy transfer?
Conduction
Two balls are rolling down identical hills. One has more mass, but both are moving at the same speed. Which has more kinetic energy?
The ball with more mass (because kinetic energy increases with both mass and speed)
When sound gets louder, what part of the wave is increasing?
Amplitude
Which type of element is a good conductor of heat and electricity?
Metal
What is it called when two liquids mix and create a solid?
A precipitate
When a car engine burns fuel, multiple energy transformations occur. Name at least one form of energy involved in this process.
Chemical energy (fuel) → thermal energy (heat) → kinetic energy (motion) → sound/light energy (optional extra forms)