Free

Do free falling objects move at constant velocity or do they accelerate?

• Falling objects accelerate at -9.8 m/s²

• Falling object move at constant velocity

• Falling objects accelerate at 100 m/s²

• It depends on the mass: heavy objects accelerate, light objects do not

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

In Newtonian physics, ________________ is any motion of a body where gravity is the only force acting upon it.

• kinematics

• free fall

• mechanics

• velocity

Tags

NGSS.MS-PS2-4

Which of the following graphs best represents free fall motion?

• 
• 
• 
• 

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

According to the graph how far does the person travel in the first 5 seconds?

• 2 m

• 10 m

• 0 m

• 5 m

Tags

NGSS.MS-PS3-1

What values are always known for a free falling object?

• v_i = 0 m/s
   a = -9.8 m/s²

• v_i = -9.8 m/s
   a = -9.8 m/s²

• v_i = -9.8 m/s
   a = 0 m/s²

• d = -9.8 m
  v_i = 0 m/s

Name the missing force...

• applied force

• weight force

• lift

• normal force

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Name the missing force...

• frictional force

• weight force

• thrust

• buoyant force

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Name the missing force...

• normal force

• applied force

• frictional force

• tension force

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Name the missing force...

• applied force

• weight force

• tension force

• drag

Tags

NGSS.MS-PS2-2

Which of the following is true about this free-body diagram?

• the forces are are balanced

• the object is free-falling

• the object is moving upward

• the forces are unbalanced

Tags

NGSS.MS-PS2-5