Energy Transformations

QuizÂ by Gary Hartle

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14 questions
• Q1
As potential energy decreases, kinetic energy...
disappears.
decreases.
increases.
stays the same.
30s
• Q2
Turbines that are used in windmills and hydroelectric dams transform _____________ energy to _________________ energy.
chemical- thermal
mechanical- electrical
nuclear- electrical
30s
• Q3
Batteries, food, and fossil fuels store this type of energy.
electrical
chemical
nuclear
30s
• Q4
Chemical energy is a form of _____________ energy.
Kinetic
Potential
Nuclear
30s
• Q5
Which bar graph represents the potential and kinetic energy of a roller coaster cart when it is halfway down a hill?
B
E
C
A
30s
• Q6
We eat food so that our bodies can transform its ______________ energy to ______________ energy when our muscles move our body, and ___________________ energy which we call body heat.
nuclear- chemical- electrical
chemical- mechanical- thermal
nuclear- potential- thermal
30s
• Q7
Stored energy, or the energy of position is...
potential energy.
mechanical energy.
thermal energy.
kinetic energy.
30s
• Q8
A science teacher jumps on a trampoline. After the teacher leaves the trampoline, during her jump, at what point does the science teacher have both the greatest amount of gravitational potential energy and the least kinetic energy?
On her way back down.
Just after her feet leave the trampoline.
Halfway up.
At the top of her jump.
30s
• Q9
In which positions will the pendulum have the same amounts of potential and kinetic energy?
points 1 and 3
points 1 and 5
points 3 and 5
points 2 and 4
30s
• Q10
A hot plate in a science lab is plugged into an electrical outlet and used to heat a beaker of water. What type of energy transformation is demonstrated?
electrical to mechanical
thermal to electrical
electrical to thermal
mechanical to thermal
30s
• Q11
For a flashlight to work, the _____________ energy inside the battery must transform to _______________ energy, which travels to the light bulb and transforms to both _________________ and ___________________ energy.
30s
• Q12
The energy of motion is...
nuclear energy.
chemical energy.
electrical energy.
kinetic energy.
30s
• Q13
Which object has the greatest amount of gravitational potential energy?
object C
object A
object B
30s
• Q14
Which type of energy do we commonly call 'heat'?
thermal energy
electrical energy
nuclear energy
chemical energy
30s

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