Motion and Stability

An object stays at rest or in motion in a straight line unless acted on by a force.

• inertia

• velocity

• newtons

• energy transformation

Interactions between any two objects can cause changes in one or both of them. An understanding of the forces between objects is important for describing how their motions change, as well as for predicting stability or instability in systems at any scale.

• GOT IT!

• I don't get it.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

An encounter between objects or particles resulting in exchange or transformation of energy.

• collision

• contact

• kinetic

• potential

Tags

NGSS.MS-PS2-1

NGSS.MS-PS3-1

NGSS.MS-PS3-5

__________ energy is the energy of motion.

• Collision

• Contact

• Kinetic

• Potential

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

A student wants to answer the following testable question: Does the length of the string affect the number of times a washer will swing back and forth when released at a 45 degree angle?

Which diagram shows the three trials that will answer the testable question?

• A

• B

• C

• D

Tags

NGSS.MS-PS2-2

A bowling ball moves across a flat surface at 7 feet per second. If a student is asked to calculate the total distance traveled by the ball, what other information does the student need to know?

• amount of friction between the ball and the surface

• amount of force applied to the ball

• total time the ball rolled

• mass of the ball

Tags

NGSS.MS-PS3-1

The science class conducts an experiment with swings of different length. Their results are below. What conclusion did they reach?

• Longer swings swing faster.

• Shorter swings swing faster.

• All swings swing the same.

• Heavier swings swing faster.

Newton's __________ Law says that for every action, there is an equal and

opposite reaction.

• Second

• Speed

• Force

• Third

Tags

NGSS.MS-PS2-1

Newton's _____ Law says that acceleration occurs when a force acts on a

mass.

• Second

• Speed

• Force

• First

Tags

NGSS.MS-PS2-2

An interaction that can change the motion of an object.

• speed

• distance

• force

• motion

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2