Law of Motion

What is the formula for the 2nd law of motion?

• a = lw

• F = mama

• F = ma

• F = llama

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NGSS.MS-PS2-1

You pull a wagon with your younger sister in it. Which of these would accelerate the rate at which you can pull the wagon?

• pull the wagon with less force

• Pull the wagon with more force

• Have your sister push down on the wagon

• Put another of your siblings in the wagon

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

If the man pushes with an equal amount of force, which object will accelerate more?

• Car because it has more mass

• Lawnmower because it has less mass

• Car because it has less mass

• Lawnmower because it has more mass

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

According to Newton's second law of motion, if a rigid body of unchanging mass is observed accelerating, what must be happening?

• A force was once applied but is now not being applied.

• The mass must be changing.

• Unbalanced forces act "all crazy!!!" on an object.

• A force is being applied to the mass.

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NGSS.MS-PS2-2

If you double the force applied to an object while keeping the mass constant, what happens to the acceleration?

• It remains the same.

• It doubles.

• It halves.

• It quadruples.

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NGSS.MS-PS2-2

How much force is needed to accelerate a 3kg skateboard at 5m/s^2. 

• 8N

• 1.6N

• 0.6N

• 15N

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NGSS.MS-PS2-2

If a car is speeding up, what can be said about the forces acting on it according to Newton's Second Law?

• The forces are balanced.

• There is no net force acting on the car.

• The net force acting on the car is in the direction of the car's motion.

• The net force acting on the car is opposite to the direction of the car's motion.

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NGSS.MS-PS2-2

Which of the following would increase the acceleration of an object the most, according to Newton's Second Law?

• Decreasing the mass and keeping the force the same.

• Increasing the force and keeping the mass the same.

• Both A and B.

• Neither A nor B.

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NGSS.MS-PS2-2

What is the formula for Newton's Second Law of Motion?

What do each of the letters correctly represent?

• Funny, Monkeys, Arrive

• Force, Mass, Acceleration

• Free, Mass, Access

• Force, Magnesium, Arsenic

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NGSS.MS-PS2-2