Force Motion Newton's Laws

What is the standard unit force is measured in?

• Newtons
• pounds
• grams
• meters

If a force of 26 N is exerted on two balls, one with a mass of 0.52 kg and the other with a mass of 0.78 kg, which ball will have the greater acceleration?  (F=ma)

• The one with a mass of .78 kg will have the greatest acceleration.
• The one with a mass of .52 kg will have the greatest acceleration.
• They will both accelerate at the same rate.

Tags

NGSS.MS-PS2-2

A 20 kg bike accelerates at 10 m/s².  what was the force?

• 25 Newtons
• 20 Newtons
• 200 Newtons
• 10 Newtons

Tags

NGSS.MS-PS2-2

A student pushes a box to right with a force of 10N while a young boy pushes the box to the left with a force of 8N. What is the sum of all forces on the box? 

• 18N left
• 18N right
• 2N right
• 2N left

Tags

NGSS.MS-PS2-2

If there is a big mass, it would need a stronger force to accelerate it.  Which law does this describe?

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law

Tags

NGSS.MS-PS2-2

A student leaves a pencil on a desk and it stays there until I pick it up. 

• 1st Law
• 2nd Law

Tags

NGSS.HS-PS2-1

If the net force on an object is equal, what can always be said about the object

• it is stopped

• it has no acceleration

• its mass is large

• it is decelerating

The acceleration of gravity on Earth is ________

• 6.8 m/s²

• 9.8 m/s²

• 8 m/s

• 10m

A push or pull motion

• acceleration

• force

• density

• velocity

Tendency of a still or moving object to resist change

• resistance

• friction

• inertia

• motion