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An object’s mechanical energy is
18 joules
20 J
electrical
chemical energy
1715 J
chemical energy
the sum of its potential and kinetic energies.
thermal energy
A rolling ball has a mass of 4 kilograms and is rolling 3 m/s. How much kinetic energy does the ball have?
18 joules
20 J
electrical
chemical energy
1715 J
chemical energy
the sum of its potential and kinetic energies.
thermal energy
A 35 kg chair is lifted 5 m off the ground. What is its potential energy?
18 joules
20 J
electrical
chemical energy
1715 J
chemical energy
the sum of its potential and kinetic energies.
thermal energy
The type of energy produced by the movement of electrons is _____________ energy.
18 joules
20 J
electrical
chemical energy
1715 J
chemical energy
the sum of its potential and kinetic energies.
thermal energy
In photosynthesis, plants use nuclear energy from the sun that is converted to light energy to produce food for themselves. What do plants convert the light energy into?
18 joules
20 J
electrical
chemical energy
1715 J
chemical energy
the sum of its potential and kinetic energies.
thermal energy
Energy is stored as ________________ in the foods we eat. It is also stored in batteries.
18 joules
20 J
electrical
chemical energy
1715 J
chemical energy
the sum of its potential and kinetic energies.
thermal energy
What is the gravitational potential energy of a 10 N diver standing on a platform 2 m high? GPE= w(h)
18 joules
20 J
electrical
chemical energy
1715 J
chemical energy
the sum of its potential and kinetic energies.
thermal energy
When the _______________ of an object increases, its particles move faster, making it feel warm to the touch.
18 joules
20 J
electrical
chemical energy
1715 J
chemical energy
the sum of its potential and kinetic energies.
thermal energy
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