Review of Forces

Force and acceleration are _______________ proportional

• Inversely
• Directly
• Not
• Almost

Tags

NGSS.HS-PS2-1

Mass and acceleration are _________________ proportional.

• Directly
• Not
• Inversely
• Somewhat

Tags

NGSS.HS-PS2-1

As the angle of the incline increases, what happens to the normal force?

• The normal force increases

• The normal force decreases

• The normal force is not affected by the incline

• The normal force is only dependent on the force due to gravity

Tags

NGSS.HS-PS2-1

Which of the following is true about the system shown?

• The system is not accelerating.
• The tension between m₂ and m₁ is less than the tension between m₂ and m₃
• The acceleration of the system only depends on m₃
• None of the other answers are true

Tags

NGSS.HS-PS2-1

Which of the following statements is true about the image above?

• The accelerations of the blocks will vary according to their mass

• The net force acting on each block is the same

• The blocks will experience the same acceleration

• The 3m box will eat the 2m and the m boxes

Tags

NGSS.HS-PS2-1

Which of the following is not true about the system?

• T₃ is equal to the scalar sum of the magnitudes of T₂ and T₁

• T₃ is equal in magnitude to F_g

• The x- components of the T₁ and T₂ and equivalent but in opposite directions

• The system is in equilibrium.

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

Sam is hover boarding down they hall at a constant velocity. Assuming there is friction, which of the following must be true?

• The force applied by the board must be greater than the frictional force

• The frictional force must equal the force applied by the board

• The force applied must equal zero

• There is not enough information

Tags

NGSS.HS-PS2-1

If μ_k = 0.65 and μ_s = 0.7, acceleration would be equal to

• 0 m/s/s

• 9.8 m/s/s

• 3.35 m/s/s

• -2.63 m/s/s

Tags

NGSS.HS-PS2-1

What is the coefficient of static friction if it takes 44 N of force to move a box that weighs 86 N? 

• 0.78
• 0.51
• 0.78 N
• 0.58 N

Tags

NGSS.HS-PS2-1

Assuming both objects are at rest, which object is more massive? M1 or M2?

• M1 is more massive
• M2 is more massive
• both M1 and M2 are the same mass

Tags

NGSS.HS-PS2-1