Accelerations are produced by

• forces.
•  velocities.
•  accelerations.
•  masses.

Tags

NGSS.MS-PS2-2

What happens when unbalanced forces act on an object at rest?

• the object remains at rest
• the object begins moving in an unpredictable direction
• the object begins moving in the direction of the net force
• the object begins moving opposite to the direction of net force

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

What is the net force?

• 40 N left
• 0 N Balalnced
• 400 N right
• 40 N right

Tags

NGSS.MS-PS2-2

What Unit do we Measure Force in? 

• Newtons
• Joules
• Force
• Don't know

F=MA
An object of mass 10 kg is accelerated upward at 2 m/s².  What force is required? 

• 20 N
• 2 N
• 5 N
• 0 N

Tags

NGSS.MS-PS2-2

20 N is the

• mass
• weight
• force
• acceleration 

45 m/s² is the... 

• Mass
• Force 
• Acceleration
• weight

What is a Balanced Force?  Two objects where...

• They both have equal force 
• One has more force than the other
• Both have no force
• One has more gravity than the other

Deceleration is...

• Speed up
• Slow down
• Fly forward
• Jump downward

Tags

NGSS.MS-PS2-2