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Energy 1, 2, 3
Test Description: Mechanical energy, thermal energy, energy transfer and transformation
Instructions: Answer all questions to get your test result.
1) the energy an object has as a result of it’s motion.
A
potential
B
kinetic
2) the energy an object has as a result of it’s position, chemical composition or shape.
A
potential
B
kinetic
3) Energy cannot be created or destroyed.
A
Law of Conservation of Energy
B
This statement is not true.
C
Law of Conservation of Matter
4) Thermal energy transfer: travels in waves, and can travel through empty space or matter.
A
conduction
B
convection
C
radiation
5) Thermal energy transfer: travels by heat rising/falling. Needs liquid or air to travel.
A
radiation
B
conduction
C
convection
6) Thermal energy transfer: Travels heat by contact. Can travel through solids.
A
conduction
B
radiation
C
convection
7) Macaroni rising and falling in a pot of boiling water.
A
conduction
B
radiation
C
convection
8) A pot sitting on a hot burner.
A
conduction
B
convection
C
radiation
9) A person placing their cold hands over a warm fire.
A
convection
B
radiation
C
conduction
10) Formula for work:
A
distance divided by time
B
force x time
C
distance x time
D
distance x force
11) When a roller coaster cart is at the top of the first hill, which energy should be high?
A
potential
B
thermal
C
kinetic
12) When a roller coaster has reached then end of the ride, most of the energy is:
A
potential
B
mechanical
C
dissipated
13) When a roller coaster is speeding down a loop, much of it's energy is:
A
gravitational potential
B
dissipated
C
mechanical kinetic
14) The sum of an object's potential and kinetic energy is:
A
electromagnetic
B
mechanical
C
thermal
D
sound
15) When winding the spool racer, energy goes from your hand to the pencil... this is an example of:
A
energy transfer
B
energy transformation
16) During the marble lab, gravitational potential energy was turned to mechanical kinetic, sound and heat... this shows:
A
energy transfer
B
energy transformation
17) A material that transfers heat/energy poorly.
A
insulator
B
conductor
18) A material that transfers heat/energy well.
A
conductor
B
insulator
19) An example of a conductor:
A
plastic
B
cotton
C
copper
D
wood
20) An example of an insulator:
A
metal
B
cork
C
water
D
copper
*select an answer for all questions
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