Physical Science Review assessment

What is the difference between direct and alternating currents?

• Direct currents flow in one direction and alternating currents change direction.

• Alternating currents flow in one direction and direct currents change direction.

True or False. Energy is never really created or destroyed because it is captured from the sun and recycled or transformed into different forms.

• True

• False

Tags

NGSS.MS-PS3-5

NGSS.MS-ESS2-1

NGSS.MS-LS2-3

Who created the system of mathematics know as calculus?

• Donald Trump

• Isaac Newton

• Elton John

• Gene Simmons

What did Louis Pasteur invent that changed the world?

• the radio

• television

• process of pasteurization

• rap music

Which is the best unit of measurement to investigate the weight of rabbits?

• inches

• tons

• ounces

• feet

The smallest particle of matter is called a ___________.

• molecule

• atom

• shell

• mixture

How did the invention of the microscope change the medical profession?

• It allowed doctors to set broken bones.

• It helped keep food clean and safe.

• It allowed doctors to see germs that caused diseases.

• It helped doctors perform surgeries.

What force or forces area at work in this picture?

• centrifugal force

• centrifugal and centripetal forces

• centripetal force only

• gravity only

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What happens to liquids when they are exposed to air?

• They melt.

• They freeze.

• They evaporate.

• They weigh more.

Which simple machine can double the amount of load being lifted with the same amount of force?

• pully

• ramp (incline)

• lever

• wedge