SPH3U
ENERGY & ENERGY TRANSFORMATIONS
Date:
1. Name at least one form of energy associated with each object in italics
a) A bonfire roasts a marshmallow
b) A baseball smashes a window
c) A solar collector heats water in a swimming pool
d) A stretched rubber band is used to launch a rolledup T-shirt toward the fans during intermission at a
hockey game.
e) The siren of an ambulance warns of an emergency
2. Write the energy-transformation for each of the following examples:
a) Fireworks explode
b) An arrow is shot horizontally off a bow and flies
through the air.
c) A paved driveway becomes hot on a clear, sunny day.
d) A camper raises an axe to chop a chunk of wood
e) A lawnmower with a gasoline engine cuts a lawn.
3. Make up at least three energy transformation equations where sound energy is the final product. Each transformation
must involve a different type of energy. Write the energy transformation equation for each example.
4. Using an energy transformation equation, show how energy is transformed for each of the following:
a) A hotdog is grilled on an outdoor barbeque
b) A truck is accelerating on the highway
c) A child jumps on a trampoline
d) A portable CD player operates with a rechargeable battery e) An incandescent
light bulb is switched on.
5. Give an example of each of the following energy transformations:
a) Electrical energy → thermal energy
b) Kinetic energy → sound energy
c) Gravitational PE → elastic potential energy
d) Chemical PE → thermal energy → kinetic energy
e) Electrical energy → kinetic energy +thermal energy + sound energy
6. Describe at least one energy transformation that a person in each of the following careers would observe or experience
regularly:
a) The fast-food industry
b) Food preservation
c) Heating and air conditioning
d) Forensic science
e) Firefighting
f)