Iowa Science

Which of the following is the smallest unit of life that can carry out all life functions?

• the mitochondria

• the vacuoles

• the nucleus

• the cell

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

When a bird flies, its wings push air downward. As a result the air pushes back upward on the bird. Which law of motion most applies to the way the wings of a bird beat? 

• Every action has an equal and opposite reaction

• The rate of acceleration of an object depends on the amount of force applied.

• Objects in motion tend to remain in motion until acted upon by an another force. 

• Force is defined by mass times acceleration

Tags

NGSS.MS-PS2-1

A Newton is a unit of...

• force

• inertia

• acceleration

• velocity

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Mechanical Advantage:  To reduce the friction of moving something.

• Lever

• Inclined Plane

• Screw

• Wheel and Axle

Tags

NGSS.MS-PS2-1

GRAVITATIONAL POTENTIAL ENERGY DEPENDS ON

• MASS AND VELOCITY

• MASS AND WEIGHT

• WEIGHT AND HEIGHT

• HEIGHT AND DISTANCE

Tags

NGSS.MS-PS3-2

WHAT ANOTHER NAME FOR THERMAL ENERGY?

• HEAT ENERGY

• ITS SIZE

• ITS POTENTIAL ENERGY

• ITS MECHANICAL ENERGY

Every living organism is made up of one or more cells

• True

• False

Tags

NGSS.MS-LS1-1

Which cell structure acts like the brain of the cell?

• Cell Membrane

• Cell Wall

• Nucleus

• Mitochondria

Tags

NGSS.MS-LS1-2

WHICH ENERGY TRANSFORMATION OCCURS WHEN A TELEVISION SPEAKER PRODUCES MUSIC?

• ELECTRICAL TO SOUND
  

• ELASTIC TO SOUND

• THERMAL TO SOUND

• SOUND TO ELECTRICAL

Tags

NGSS.MS-PS4-1

What type of energy do the bowling pins have when being knocked over?

• kinetic

• potential

• No energy

• chemical

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5