Energy Transformations
Potential or Kinetic Energy
Density
Take a Chance
Chemical or Physical Changes
100
What is the correct energy transformation that is occurring?
Chemical → Electrical → Light
100
True or False: Kinetic energy is stored energy or energy at rest.
False
100
What is the formula for density?
Density = Mass/Volume
100
What elements are in HCl?
Hydrogen and Chlorine
100
Is smoke and gas being produced evidence of a physical or chemical change?
Chemical
200
What energy transformation is causing an air popper to pop popcorn?
Electrical → Thermal → Sound
200
Which student (1,2, or 3) has the most gravitational potential energy?
2
200
How would I write the correct expression for solving for density of an object that has a mass of 64g and a volume of 16mL?
64g/16mL
200
What are physical properties of nonmetals?
Dull, Brittle, and Insulators
200
Is paper getting smaller in size a physical or chemical change?
Physical
300
What energy transformation occurs to light a candle?
Chemical → Thermal → Light
300
Which skier, yellow or blue, has the most gravitational potential energy?
Blue
300
What is the density of the jack-o-lantern with a mass of 169 g and a volume of 13 cm3?
13 g/cm3
300
What is true of both Calcium and Potassium at normal room temperature?
Solid, Malleable, not magnetic, Good Conductor
300
Is heat being produced, color change and light is produced a physical or chemical change?
Chemical
400
What energy transformation occurs from eating a meal to riding a bike?
Chemical → Mechanical
400
Which location on the roller coaster has the most kinetic energy?
4
400
What is the density of this substance?
Mass: 105.6 g
Volume: 60 cm3
Density: 1.76 g/cm3
400
DOUBLE JEOPARDY!
What is the definition of an element and a compound?
An element is a pure substance made of only one type of atom.
A compound is a pure substance made of 2 or more different elements or 2 or more different types of atoms.
400
If a piece of paper curls up is that a physical or chemical change?
Physical
500
What energy transformation is causing a firework to explode?
Chemical → Thermal → Light → Sound
500
Which location on the rollercoaster has the highest gravitational potential energy?
1
500
What is the density of the unknown substance?
Mass: 263.5 g
Volume: 4 cm3
Density: 65.86 g/cm3
500
What elements are in the compound H3PO4?
Hydrogen, Phosphorus, Oxygen
500
DOUBLE JEOPARDY!
What is the definition of a physical and chemical change?
Physical change can be reversible and does not change the molecules.
Chemical is irreversible and the molecules are changed, creating a new substance.