Energy: Question Preview (ID: 193)

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The kinetic energy of an object increases as its ____ increases.
a) gravitational energy b) velocity c) specific heat d) potential energy
Increasing the speed of an object ____ its potential energy.
a) does not affect b) changes c) decreases d) increases
The SI unit for energy is the ____.
a) calorie b) kilogram c) meter per second d) joule
You can calculate kinetic energy by using the equation ____.
a) KE (J) = m (kg) x 9.8 m/s 2 x h (m) b) KE (J) = 9.8 m/s 2 x 1/2 m (kg) c) KE (J) = 1/2 m (kg) x v 2 (m 2 /s 2 ) d) KE (J) = w (m) x h (m)
Which of the following devices does not make use of electrical energy?
a) upright piano b) radio c) digital camera d) toaster
A bus engine transfers chemical potential energy into ____ so that the bus moves.
a) thermal energy b) kinetic energy c) electrical energy d) gravitational potential energy
In a nuclear fusion reaction, mass is transformed into ____.
a) matter b) light c) energy d) nuclei
You can calculate gravitational potential energy by using the equation ____.
a) GPE (J) = 1/2m (kg) x 1/2h (m) b) GPE (J) = 1/2h (m) x w (m) c) GPE (J) = h (m) x 9.8 m/s 2 d) GPE (J) = m (kg) x 9.8 m/s 2 п‚ґ h (m)
According to the law of conservation of energy, the total amount of energy in the universeВ ____.
a) remains constant b) decreases c) increases d) changes constantly
what occurs when energy is transferred from one object to another
a) an explosion b) a change c) nuclear fusion d) a chemical reaction
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