Chapter 6 PS_5 Test Review

Energy is not:

• a scalar

• operationally defined

• measured in joules

• created or destroyed

Which of the following is not an example of work?

• a man pushing a heavy box across the floor

• an air hockey puck traveling at a constant speed

• a magnet repelling a compass needle

• ship movement that causes ripples in the water

Which of the choices below has kinetic energy?

• a book on your bookshelf

• an avalanche

• a compressed spring

• a case of dynamite

Which of the following does not possess magnetic energy?

• a compass needle

• a wire conducting electricity

• the earth

• a piece of wood

Which of the following is not a type of radiant energy?

• sound waves

• x-rays

• microwaves

• radio waves

Which nuclear process releases energy when one atom splits?

• mass defect

• fusion

• fission

• mass-energy transformation

Which nuclear process releases energy when two atoms merge?

• mass defect

• fusion

• fission

• mass-energy transformation

Which energy transformation is chiefly involved in the urban heat island effect?

• thermal to radiant energy

• radiant to mechanical potential energy

• radiant to chemical energy

• radiant to thermal energy

In processes that are less than 100% efficient, energy is still conserved because:

• no energy changes from one form to another

• the total energy of the system, including unusable forms, does not change

• energy that is destroyed is replaced with new energy

• energy that is used is converted to an equivalent mass

Which type of collision conserves both kinetic energy and momentum?

• inelastic

• partially inelastic

• partially elastic

• elastic