Forms of Energy
What form of energy is produced by a lamp?
Thermal/Radiant and light energy
What type of energy does a stretched rubber band have?
Elastic potential energy
What transformation occurs in a toaster?
Electrical → Thermal
What type of energy moves from your hand into a cold ice cube?
Thermal
At the top of the roller coaster, the cars have the most ___________ energy
Potential
What form of energy comes from vibrations?
Sound
What type of energy does a moving skateboard have?
Kinetic
What is the main source of energy in a food web?
The sun
When you kick a soccer ball, what transfers?
Mechanical (Kinetic)
Gasoline in a car is what type of energy?
Chemical Energy
What form of energy is produced by friction?
Thermal Energy
When does a rollercoaster have the highest potential energy?
At the highest point of the roller coaster
When a battery-powered flashlight turns on, what energy transformation occurs?
Chemical → Electrical → Light
True or False: Mechanical energy transfer only happens when two objects touch.
False
an object with more ______________ has more kinetic energy
Speed or mass
What form of energy increases when an object moves faster?
Mechanical (Kinetic)
What law states that energy cannot be created or destroyed?
Law of Conservation of Energy
What transformation happens when plants make food?
Light energy → Chemical energy (photosynthesis)
How does energy transfer from a speaker to your ear?
Sound energy through vibrating air
What two things does an objects kinetic energy depend on
speed and mass
A device uses electricity to spin a fan AND make a beeping sound.
Name the input energy and all output energies (energy transformation)
Electrical (input) → Mechanical + Sound (outputs)
Two rocks with different masses sit at the top of a ramp. Which has more potential energy and which has more kinetic energy?
The heavier ball has more potential energy and more kinetic energy
Describe the complete energy transformation pathway that gives a cheetah the energy to run.
Sun (radiant) → plant (chemical) → prey (chemical) → cheetah (kinetic )
Why does a metal spoon get hotter faster than a wooden spoon in hot soup?
Metal is a better conductor
For every action, there is an equal and opposite reaction. What is the term for this phrase ?
Newton’s 3rd Law.