What are the equal and opposite forces called sometimes?

• Force pairs

• Action and reaction forces

• reaction forces

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NGSS.MS-PS2-1

When the masses of the objects in a collision are very different, which one experiences a greater effect?

• The smaller less massive one

• The larger more massive one

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NGSS.MS-PS2-2

What is acceleration?

• It's the same as Velocity

• It's the change of velocity (or speed or direction of an object)

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NGSS.MS-PS2-2

Which of Newton's laws says that when one object exerts a force on another, the second object exerts and equal but opposite force on the first object?

• Newton's 1st law

• Newton's 2nd Law

• Newton's 3rd law

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NGSS.MS-PS2-1

When someone kicks a ball - if the forces are equal but opposite - why does the ball go flying and not the person kicking it?

• The person is way less massive so the effect of the force is greater

• The ball is way less massive so the effect of the force is greater

• The mass of the objects have nothing to do with their acceleration

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NGSS.MS-PS2-2

Which of Newton's laws gives the formula F=Ma?

• Newton's 1st law

• Newton's 2nd Law

• Newton's 3rd law

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NGSS.MS-PS2-2

What does inertia mean?

• That an object will continue to move the same speed and direction until another force acts on it

• That an object will not move until a force acts on it

• Neither is true

Which of Newton's laws says that the acceleration of an object depends on the mass of the object and the force applied to it?

• Newton's 1st law

• Newton's 2nd Law

• Newton's 3rd law

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NGSS.MS-PS2-2

If a glass marble collides with a steel ball that has more mass, which of the following will be true?

• The objects exert an equal but opposite foece on one another

• The more massive object will exert a greater force on the less massive object

• Each object will accelerate in an opposite direction, but at a different rate

• The mless massive object will accelerate due to the force of the collision, but the more massive one will not.

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NGSS.MS-PS2-1

What happens when 2 objects of the same mass collide?

• According to newton's 2nd, they will accelerate at the same rate but in the opposite directions

• According to newton's 2nd, they will accelerate at the different rates but in the opposite directions

• According to newton's 2nd, they will accelerate at the same rate but in the same direction as motion

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