Force, Mass and Acceleration Word Problems

A 50 kg skater pushed by a friend accelerates 5 m/sec².  How much force did the friend apply?

• 45 N

• 15 N 

• 10 N

• 250 N

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NGSS.MS-PS2-2

The classes are playing tug of war. Barsoum’s room pulls to the left with a force of 45 N. Coach Camacho's room pulls to the right with a force of 50 N. What is the net force? And who won?

• 5N right. Coach Comacho's Class won.

• 5N Left. Barson's class won. 

• 95N and Coach Comacho's class won. 

• 95N and Barson's class won.

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NGSS.MS-PS2-2

Determine the accelerations that result when a 12-N net force is applied to a 3-kg object and then to a 6-kg object.

• A 3-kg object experiences an acceleration of 2 m/s/s. A 6-kg object experiences an acceleration of 2m/s/s.  

• A 3-kg object experiences an acceleration of 4 m/s/s. A 6-kg object experiences an acceleration of 2 m/s/s.  

• A 3-kg object experiences an acceleration of 2 m/s/s. A 6-kg object experiences an acceleration of 4 m/s/s.  

• A 3-kg object experiences an acceleration of 4 m/s/s. A 6-kg object experiences an acceleration of 4 m/s/s.  

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NGSS.MS-PS2-2

Coach Camacho and his wife were trying to move their new chair. Coach Camacho pulls with a force of 30N while Mrs. Camacho pushes with a force of 25 N in the same direction. What is the net force?

• 15N

• 5N

• 55N

• 25N

Tags

NGSS.MS-PS2-2

Newton's law of motion describes the relationship of force, mass, and acceleration. Write the equation.

• M=F/A

• F=MA

• A= F/M

• All of the above

If you increase the mass on an object, its acceleration

• decreases

• stays the same

• also increases

• stops

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NGSS.MS-PS2-2

The unbalanced force acting on an object equals the object's mass times its acceleration is which law...?

• First Law

• Second Law

• Third Law

• Murphy's Law

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NGSS.MS-PS2-2

Newtons 1st law of motion states:

• An object in motion will stay in motion and an object in rest will stay in rest unless acted upon by and unbalance force.

• For every action there is an equal and opposite reaction. 

• Acceleration is produced when a force. acts on a mass. 

• The greater the mass  the greater the amount of force needed to change its motion. 

A car of mass 1000 kg accelerates at 2 m/s^2. What is the force applied to the car?

• 1000 N

• 2000 N

• 500 N

• 1500 N

Tags

NGSS.MS-PS2-2

A 10 kg object is pushed with a force of 50 N. What is the acceleration of the object?

• 5 m/s^2

• 10 m/s^2

• 2 m/s^2

• 7 m/s^2

Tags

NGSS.MS-PS2-2