Energy 1, 2, 3 Question Preview (ID: 29545)
Mechanical Energy, Thermal Energy, Energy Transfer And Transformation.
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A person placing their cold hands over a warm fire.
a) convection
b) conduction
c) radiation
d)
A pot sitting on a hot burner.
a) convection
b) conduction
c) radiation
d)
Thermal energy transfer: Travels heat by contact. Can travel through solids.
a) convection
b) conduction
c) radiation
d)
Macaroni rising and falling in a pot of boiling water.
a) convection
b) conduction
c) radiation
d)
Thermal energy transfer: travels by heat rising/falling. Needs liquid or air to travel.
a) convection
b) conduction
c) radiation
d)
Thermal energy transfer: travels in waves, and can travel through empty space or matter.
a) convection
b) conduction
c) radiation
d)
Energy cannot be created or destroyed.
a) This statement is not true.
b) Law of Conservation of Matter
c) Law of Conservation of Energy
d)
the energy an object has as a result of it’s position, chemical composition or shape.
a) kinetic
b) potential
c)
d)
the energy an object has as a result of it’s motion.
a) kinetic
b) potential
c)
d)
Formula for work:
a) distance x force
b) force x time
c) distance x time
d) distance divided by time
When a roller coaster cart is at the top of the first hill, which energy should be high?
a) kinetic
b) thermal
c) potential
d)
When a roller coaster has reached then end of the ride, most of the energy is:
a) dissipated
b) potential
c) mechanical
d)
When a roller coaster is speeding down a loop, much of it's energy is:
a) dissipated
b) gravitational potential
c) mechanical kinetic
d)
The sum of an object's potential and kinetic energy is:
a) thermal
b) mechanical
c) electromagnetic
d) sound
When winding the spool racer, energy goes from your hand to the pencil... this is an example of:
a) energy transfer
b) energy transformation
c)
d)
During the marble lab, gravitational potential energy was turned to mechanical kinetic, sound and heat... this shows:
a) energy transfer
b) energy transformation
c)
d)
A material that transfers heat/energy poorly.
a) insulator
b) conductor
c)
d)
A material that transfers heat/energy well.
a) insulator
b) conductor
c)
d)
An example of a conductor:
a) cotton
b) wood
c) plastic
d) copper
An example of an insulator:
a) metal
b) water
c) cork
d) copper
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