7.7D Re-Practice

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

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 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

Why is the net force 0 in the image?

• Because the elephants are the same size
• Because they are both pulling the same amount of force in opposite directions
• Because they are elephants
• Because they are pulling away from each other.

Tags

NGSS.MS-PS2-1

Which one is balanced?

• top
• bottom
• both

Tags

NGSS.MS-PS2-2

What is the net force?

• 5 N
• 45 N to the left
• 5 N to the right
• 45 N to the right

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which type of force(s) will cause a change in an object's motion?

• gravity
• zero net force
• balanced forces
• unbalanced forces

Tags

NGSS.MS-PS2-2

A bowling ball is rolled across the parking lot. Which statement about it is true?

• the bowling ball will only stop if it strikes something

• the bowling ball will never stop

• the bowling ball will eventually stop because of friction

• the bowling ball will eventually stop because of inertia