Chapter 12-1, 3-1, 3-2, 13-1, 13-2 13-3 Energy 2019

Which of these is an example of work being done on an object?

• holding a door shut on a windy day so it doesn’t blow open

• holding a heavy piece of wood at a construction site

• trying to push a car that doesn’t move out of deep snow

• pushing a child on a swing

The energy associated with motion is called

• nuclear

• kinetic

• elastic potential

• gravitational potential

An uncovered pot of soup is simmering on a stove, and there are water droplets on the wall above the back of the stove. What sequence can you infer has occurred?

• freezing, then thawing

• melting, then boiling

• condensation, then vaporization

• vaporization, then condensation

The ability to do work is called

• energy

• velocity

• friction

• conversion

What is vaporization?

• a gas becoming a liquid

• a gas becoming a solid

• a liquid becoming a gas

• a liquid becoming a solid

Potential energy that depends on height is called

• mechanical energy

• gravitational potential energy

• kinetic energy

• elastic potential energy

The freezing point of water is the same as its

• evaporation point

• sublimation point

• boiling point

• melting point

Energy stored in the nucleus of an atom is called

• electromagnetic energy

• nuclear energy

• chemical energy

• .mechanical energy.

Particles of a liquid

• have no viscosity

• are free to move in a container but remain in close contact with one another

• decrease in volume with increasing temperature

• are tightly packed together and stay in a fixed position

The law of conservation of energy states that when one form of energy is converted into another,

• some amount of energy cannot be accounted for

• energy is destroyed in the process

• no energy is destroyed in the process

• energy is created in the process