Newton's First Law Video

Why does an object at rest stay at rest?

• Because it is so tired

• Because it is heavy

• Because of its inertia

• Because of gravity

What happens when an external, unbalanced force acts on an object at rest?

• The object remains at rest

• The object disappears

• The object begins to move

• The object changes color

Tags

NGSS.MS-PS2-2

What does an external, unbalanced force do to an object?

• Changes its color

• Makes it lighter

• Changes its state of motion

• Makes it invisible

Tags

NGSS.MS-PS2-2

What example is used to illustrate Newton's first law?

• A leaf falling from a tree

• A ball rolling downhill

• An apple being thrown

• A car stopping suddenly

What causes an object in motion to change its state of motion?

• Inertia

• An external, unbalanced force

• The object's color

• An internal force

Tags

NGSS.MS-PS2-2

What summarizes Newton's first law of motion?

• Apples are delicious, and you should eat one every day.

• An object at rest stays at rest and an object in motion stays in motion unless acted upon by an external force

• The force of an object is equal to its mass times acceleration

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

In this Law, "At rest" means ___.

• Asleep

• Still

• In Motion

• On Break

Only ___ forces can change motion.

• Balanced

• Unbalanced

Tags

NGSS.MS-PS2-2

The tendency for an object to "keep doing what it is doing" is called ___.

• Friction
• Inertia
• Acceleration
• Gravity

We've been using a different word than "air resistance."

When we talk about the force in the air that acts opposite to motion, we call it ___.

• Normal

• Drag

• Friction

• Applied