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Energy And Work-Paxton's Review #3
Test Description: Potential vs. kinetic energy, 5 different form of energy, and how they change form, work and how it can be measured
Instructions: Answer all questions to get your test result.
1) You can calculate work by using the equation ____.
A
force x distance = work
B
force - distance = work
C
force + distance = work
D
force / distance = work
2) Which of the following devices does not make use of electrical energy?
A
digital camera
B
toaster
C
upright piano
D
radio
3) In a nuclear fusion reaction, nuclear energy is transformed into ____.
A
heat and light
B
nuclei and energy
C
energy and heat
D
light and matter
4) A bus engine transfers chemical potential energy into ____ so that the bus moves.
A
thermal energy
B
gravitational energy
C
mechanical energy
D
electrical energy
5) An electric razor changes ______ energy to _______
A
heat-mechanical
B
electrical-mechanical
C
electrical-light
D
chemical-heat
6) A bench press machine changes ______ energy to _______
A
electrical-light
B
chemical-heat
C
electrical-mechanical
D
chemical-mechanical
7) A dryer changes ______ energy to _______
A
light-thermal
B
electrical-chemical
C
electrical- thermal
D
heat-chemical
8) A household mixer changes ______ energy to _______
A
electrical-mechanical
B
mechanical-electrical
C
electrical-chemical
D
chemical-mechanical
9) Work is NOT being done in which example?
A
A boy holds a heavy package for an hour.
B
A boy carries his baby sister across the room
C
A soccer player kicks a goal.
D
A girl peddles her bike down a hill
10) You CANNOT calculate power with this equation:
A
power = work / time
B
power = (force x distance) / time
C
power = (time x force) / distance
D
power = (distance x force) / time
*select an answer for all questions
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