Newton's Laws of Motion RE-view

When the index card is flicked from the glass in a horizontal direction, the coin falls straight down into the glass. this action is a result of the coin's ______.

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NGSS.HS-PS2-1

A soccer player accelerates a 0.50-kg soccer ball by kicking it with a net force of 5.0 N. What is the magnitude of the acceleration of the soccer ball?

• 2.5 m/s²

• 5.0 m/s²

• 7.5 m/s²

• 10 m/s²

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NGSS.HS-PS2-1

Two forces, F₁ and F₂ , are applied to a block on a frictionless, horizontal surface as shown. If the mass of block is 5 kg, what is the acceleration of the block?

• + 2 m/s²

• + 3 m/s²

• - 2 m/s²

• - 3 m/s²

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NGSS.HS-PS2-1

Which free-body diagram represents a box in equilibrium?

• 
• 
• 
• 

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NGSS.HS-PS2-1

A 1.5-kg lab cart is accelerated uniformly from rest to a speed of 2.0 m/s in 0.50 second. What is the magnitude of the force producing this acceleration?

• 1.5 m/s²

• 2.7 m/s²

• 3.5 m/s²

• 6.0 m/s²

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NGSS.HS-PS2-1

If the sum of all the forces acting on a moving object is zero, the object will _____.

• slow down and stop

• change the direction of its motion

• accelerate uniformly

• continue moving with constant velocity

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NGSS.HS-PS2-1

Which unit is equivalent to a newton (N)?

• m/s²

• m/s

• kg-m/s

• kg-m/s²

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NGSS.HS-PS2-1

Which is the metric unit of mass?

• pounds

• kilogram

• gram

• Newton

What is the metric unit of acceleration?

• m

• m/s²

• m/s

• kg-m/s

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NGSS.HS-PS2-1

What is the metric unit of distance or length?

• inch

• feet

• meter

• kilometer