Force and Acceleration

An elevator accelerates upward at 2.0 m/s², as illustrated in the diagram below:
The passenger has a mass of 85 kg.  Calculate the force the floor exerts on the passenger.

• 1003 N
• 0 N
• 833 N
• 663 N

Tags

NGSS.MS-PS2-2

An elevator accelerates at -2.0 m/s², as illustrated in the diagram below:
The passenger has a mass of 85 kg.  Calculate the force the floor exerts on the passenger.

• 1003 N
• 0 N
• 833 N
• 663 N

An elevator is moving up at a constant velocity of 2.5 m/s,as illustrated in the diagram below:
The passenger has a mass of 85 kg.  Calculate the force the floor exerts on the passenger.

• 1045.5 N
• 0 N
• 833 N
• 620.5 N

Tags

NGSS.MS-PS2-2

If a 2kg bird is pushed by the wind with a force of 2N, how fast does the bird accelerate?

• 1 m
• 2 m/s²
• 4m/s²
• 1 m/s²

Tags

NGSS.MS-PS2-2

What is a measure of the change of velocity of a moving object?

• speed
• acceleration
• motion 
• velocity 

_____________ causes changes in the speed and/or direction of motion. 

• Speed
• Force
• Velocity

Tags

NGSS.MS-PS2-2

The SI unit for force is 

• Watt (W)
• Power (P)
• Newton (N)
• Force (F)

Acceleration is 

• a change in direction
• a change in speed 
• a change in direction and speed 
• All of the above 

Tags

NGSS.MS-PS2-2

A drag racer accelerated from 0 m/s to 200 m/s in 5 s.  What was the acceleration?

• 0 m/s
• 40 m/s²
• -40 m/s²
• 40 m/s

Tags

NGSS.MS-PS2-2

A roller coasters accelerates from an initial velocity of of 6.0 m/s to a final velocity of 70 m/s over 4 seconds.  What's the acceleration?

• 24 m/s²
• 18 m/s²
• 16 m/s²
• 16 m/s

Tags

NGSS.MS-PS2-2