Physics Spring Final Review

Which energy resource converts potential energy of falling water ⇒ kinetic energy ⇒ electrical energy while producing no air pollution?

• Hydroelectric

• Biomass

• Nuclear Fusion

• Fossil Fuels like coal

A machine converts 40% of electrical energy into mechanical energy and 60% into heat energy. What statement explains the law of conservation of energy?

• Machines always convert only a part of electrical energy to another form of energy.

• Electrical energy is always accompanied by mechanical energy.

• The machine changes the form of the electrical energy but cannot create or destroy energy.

• Electrical energy always produces heat energy.

Tags

NGSS.HS-PS3-2

NGSS.HS-PS3-4

Which is an example of thermal energy flowing from a higher energy system to a lower energy system?

• Melting ice in hot coffee

• Putting a hot poker in the fire

• Dropping a hot marble into a boiling pot

• Swimming in a pool heated to 98.6 °F

Tags

NGSS.HS-PS3-4

Gravitational potential energy is potential energy that depends on what?

• Temperature

• Volume

• Length

• 
  Height

Tags

NGSS.MS-PS3-2

Finish the sentence; As stars or galaxies move away from our galaxy ...

• The wavelength decreases

• The wavelength increases

• The wavelength stays the same

• The speed slows down

Tags

NGSS.HS-ESS1-2

NGSS.HS-PS4-1

When stars and galaxies move away from our galaxy the wavelength increases. This is called a

• Interference

• Blue Shift

• Red Shift

• Refraction

Tags

NGSS.HS-PS4-1

Astronomers have observed that absorption bands in the spectra of distant stars are shifted towards the red end of the light spectrum. This observation provides evidence that: THERE ARE TWO CORRECT

• the elemental composition of those stars is changing

• the universe is contracting

• the universe is expanding

• those stars are moving away from earth

• the universe is becoming warmer

Tags

NGSS.HS-ESS1-2

Place the stages of a star's life cycle in the correct order with the earliest to latest. 

• Supernova, protostar, nebula, neutron star, red giant

• nebula, protostar, Supernova, neutron star, red giant

• nebula, protostar, red giant, neutron star, Supernova

• nebula, protostar, red giant, Supernova, neutron star

Tags

NGSS.HS-ESS1-3

At which stage of a star's life cycle do heavier elements form?

• Supernova

• Nebula

• Protostar

• Neutron Star

Tags

NGSS.HS-ESS1-3

Beginning with a nebulae, which is the next stage in the life cycle of a star?

• Supernova

• Red Giant

• Nebula

• Protostar