S-4th Week 6

Newton's 1st Law is also called the Law of ...

• Friction

• Inertia

• Unbalanced forces

• Newtons

Objects with greater _________ also have greater inertia.

• speed
• mass
• temperature
• friction

Tags

NGSS.MS-PS2-2

The law of inertia (Newton’s First Law) applies

• to both moving and nonmoving objects
• only to moving objects
• only to objects that are not moving

Because of inertia, a moving object will keep ________ unless acted on by an unbalanced force.

• at rest

• moving

• in one spot

• inertia

Because of inertia, a resting object will remain at ________.

• rest
• a constant speed
• school
• inertia 

What kind(s) of objects have inertia?

• all objects with mass
• only objects at rest
• only objects in motion
• only objects whose motion is being changed

Tags

NGSS.HS-PS2-1

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

• unbalanced
• balanced

Tags

NGSS.MS-PS2-2

Why do we wear seat belts?

• Because inertia keeps our bodies moving, even when the car stops

• Because inertia makes our bodies stop

Two forces that can overcome inertia are....

• gravity

• friction

• mass

• acceleration

Tags

NGSS.MS-PS2-2

True or false: objects with greater mass have greater inertia

• True

• False