Middle School Physical Science

Newton's first law is also called the Law of ...

• Friction

• Inertia

• Unbalanced forces

• Newtons

An object in motion tends to stay in motion unless an ___ force acts on it.

• unbalanced

• balanced

Tags

NGSS.MS-PS2-2

The tendency of an object to resist a change in motion is...

• inertia

• kinetic energy

• vector

• net force

Newton's first law applies

• to both moving and nonmoving objects

• only to moving objects

• only to objects that are not moving

What is the unit of force in the International System of Units (SI)?

• Joule

• Newton

• Watt

• Pascal

Tags

DOK Level 1: Recall

What happens to the particles of a substance when it melts from solid to liquid?

• The particles decrease in energy.

• The particles move farther apart.

• The particles stop moving.

• The particles come closer together.

Tags

DOK Level 1: Recall

Which of the following best describes the motion of an object experiencing balanced forces?

• Constant speed

• Increasing speed

• Decreasing speed

• Stationary

Which of the following best describes Newton's Third Law of Motion?

• An object at rest stays at rest

• Force equals mass times acceleration

• For every action, there is an equal and opposite reaction

• Energy cannot be created or destroyed

Tags

DOK Level 1: Recall

How do the nervous and muscular systems work together to produce movement?

• Nerves push muscles

• Muscles send signals to nerves

• Nerves send signals to muscles

• Muscles push nerves

What is the main function of the excretory system?

• To break down food

• To remove waste from the body

• To circulate blood

• To protect against disease