Energy Transfer and Transformation Quiz-7th

Which BEST states the law of conservation of energy?

• The total energy of any system does not change.

• The total amount of energy in an object is constant.

• Energy is not created or destroyed, only changed from one form to another.

• Energy is not created or destroyed, only released or absorbed as thermal energy.

Tags

NGSS.MS-PS3-5

Which is NOT true about nuclear energy power plants?

• They use energy from fission reactions to heat water.

• They release greenhouse gases.

• They produce radioactive waste.

• They use uranium fuel, a non-renewable resource.

At this geothermal power plant, what is turning the turbine that generates electricity?

• the movement of lava

• hot air rising to Earth’s surface

• steam from water heated deep within Earth

• convection currents of magma underground

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS3-1

NGSS.MS-PS3-4

Which BEST represents the energy transformations that occur at this geothermal power plant?

• nuclear energy ➔ thermal energy ➔ electrical energy

• electrical energy ➔ kinetic energy ➔ radiant energy

• thermal energy ➔ kinetic energy ➔ electrical energy

• thermal energy ➔ radiant energy ➔ electrical energy

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Energy transformations are not 100% efficient. What does this mean?

• A small amount of energy is destroyed in each energy transformation.

• The law of conservation of energy has a large margin of error.

• Some energy is transformed into heat with each energy transformation.

• Energy transformations require the use of non-renewable resources.

Tags

NGSS.MS-PS1-4

Which type of energy transformation is a photovoltaic cell designed to produce?

• chemical to electrical

• radiant to thermal

• radiant to electrical

• chemical to radiant

Tags

NGSS.HS-PS3-3

Which type of energy transformation occurs in the diagram below when the switch is closed?

• chemical energy ➔ electrical energy ➔ radiant energy

• radiant energy ➔ electrical energy ➔ chemical energy

• electrical energy ➔ chemical energy ➔ radiant energy

• mechanical energy ➔ electrical energy ➔ radiant energy

Which type of energy transformation is the first to occur in a battery-operated toy?

• chemical energy to potential energy

• chemical energy to electrical energy

• mechanical energy to electrical energy

• potential energy to mechanical energy

A speaker contains a thin diaphragm that vibrates. Which BEST describes the energy transformations taking place when this speaker operates?

• Sound energy causes the diaphragm to vibrate. The kinetic energy transforms into electrical energy.

• Sound energy causes the diaphragm to vibrate. The kinetic energy transforms into radiant energy.

• Electrical energy causes the diaphragm to vibrate. The kinetic energy of vibration transforms into sound energy.

• Electrical energy causes the diaphragm to vibrate. The kinetic energy of vibration transforms into radiant energy.

Which type(s) of electrical energy generation involves transforming chemical energy into electrical energy?

• nuclear

• biomass and coal

• solar and wind

• geothermal and hydroelectric

Tags

NGSS.HS-PS3-3