Newton's Second Law

Which of these best states Newton's Second Law?

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

• The greater the mass of an object the less force needed to change its motion.

• The mass of an object does not effect the force needed to change its motion

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NGSS.MS-PS2-2

F=Ma
A force of 200 N is exerted on an object of mass 40 kg that is located on a sheet of perfectly smooth ice.Calculate the acceleration of the object. 

• 5 m/s²

• 8000 m/s²

• 0.2 m/s²

• 1.32 m/s²

Tags

NGSS.MS-PS2-2

If a 10 kilogram object accelerates suddenly at 15 m/s², how much force was applied to the object? (watch for proper units on this answer!)

• 150 Newtons

• 15 Newtons

• 150 kilograms

• 100 kilograms

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NGSS.MS-PS2-2

Why is the net force 0 in the image?

• Because the elephants are the same size

• Because they are both pulling the same amount of force in opposite directions

• Because they are elephants

• Because they are pulling away from each other.

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NGSS.MS-PS2-1

One kg multiplied by m/s² can also be expressed as 1 __________.

• direction

• mass

• kilogram²

• newton

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NGSS.HS-PS2-1

A car is 2000kg and accelerating at 20m/s², what is the net force applied to it?

• 40000 N

• 100 N

• 5 N

• 200 N

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.HS-PS2-1

A car starts from rest at a stop light and reaches 20 m/s in 3.5 s. Determine the acceleration of the car.

• 2.2m/s²

• 7.0m/s²

• 5.7m/s²

• 70m/s²

Tags

NGSS.HS-PS2-1

The law stating the relationship between the force applied to an object and the object's mass and acceleration.

• Newton's First Law of Motion

• Newton's Second Law of Motion

• Newton's Third Law of Motion

Tags

NGSS.MS-PS2-2

The SI unit of force, or mass times acceleration

• Weight

• Wavelength

• Newton

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2